Oxalidaceae

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

Kenneth C. Oberlander - One of the best experts on this subject based on the ideXlab platform.

  • Two new Oxalis (Oxalidaceae) species, including 5 varieties, from the Richtersveld of South Africa
    Phytotaxa, 2017
    Co-Authors: Léanne L. Dreyer, Francois Roets, Kenneth C. Oberlander
    Abstract:

    Two new species of Oxalis (Oxalidaceae) from the Richtersveld are described, namely Oxalis canaliculata and O. magnifolia . These widespread species are morphologically distinct and easily identified, but both contain populations in which individuals consistently differ morphologically from typical varieties. The typical variety of Oxalis canaliculata is widespread throughout the Richtersveld, while O. canaliculata var. trifoliolata is known from a single population and O. canaliculata var. graniticola is known only from granite outcrops. Oxalis magnifolia includes the typical variety that is widespread and Oxalis magnifolia var. reduplicata , which is only known from two populations in close proximity to one another. Morphological characters, preliminary phylogenetic position based on data from the nuclear ITS region, habitat description and formal taxonomic descriptions are provided for all taxa. The diagnostic characters of the new species are compared to all phenotypically similar southern African species.

  • Oxalis dreyerae (Oxalidaceae), a new species from South Africa
    Phytotaxa, 2016
    Co-Authors: Francois Roets, Kenneth C. Oberlander
    Abstract:

    Oxalis dreyerae , a new species from the arid Richtersveld region of South Africa, is described. It is most similar to O. inconspicua from which it differs, among others, by having a larger plant body, larger and showier flowers with a broadly trumpet-shaped tube, much larger leaflets, petioles that are thicker than the peduncles, much larger lanceolate sepals and short, stubby teeth on the longer filaments. Its placement within the O. flava clade is supported by nrDNA ITS sequence evidence, which is also consistent with a close relationship to O. inconspicua. Oxalis dreyerae represents the eighth described species of Oxalis endemic to the arid Richtersveld of the Northern Cape, thus supporting the importance of the floristically diverse Gariep Centre of Endemism, of which the region forms a part.

  • An Unusual Night-Flowering Oxalis from South Africa (Oxalidaceae)
    Systematic Botany, 2014
    Co-Authors: Léanne L. Dreyer, R. M. Macfarlane, Francois Roets, Kenneth C. Oberlander
    Abstract:

    Abstract A new Oxalis (Oxalidaceae) species from the Hantamsberg (South Africa) is described and typified as Oxalis noctiflora using morphological, palynological, and molecular characters. Superficially it closely resembles Oxalis aridicola, Oxalis callosa, Oxalis odorata, and Oxalis primuloides, and it shares a unique supra-areolate pollen type with most of these species. No single vegetative morphological character defines this species, but a unique combination of bulb and leaflet characters distinguishes it from all other known species. The flowers of Oxalis noctiflora are unique for the genus in displaying typical moth-pollination characters. The white flowers open at night, have a long, unusually narrow, corolla tube, and produce a strong sweet scent. All previously described Oxalis species have flowers that open during the day. Phylogenetic analyses based on nuclear Internal Transcribed Spacer data placed this species sister to O. aridicola within a clade of morphologically and palynologically simil...

  • Discovery of substantial Oxalis (Oxalidaceae) diversity and endemism in an arid biodiversity hotspot
    Phytotaxa, 2014
    Co-Authors: Kenneth C. Oberlander, Francois Roets, Léanne L. Dreyer
    Abstract:

    Despite globally acknowledged diversity levels, the flora of the arid Richtersveld of South Africa remains poorly known for certain plant lineages, including the eudicot genus Oxalis . Cryptic habit, inaccessible and harsh terrain and the lack of focussed systematic attention has led to the assumption that the region is depauperate in this genus. However, recent exploration proved quite the opposite and revealed a wealth of Oxalis species, including at least ten undescribed species and many significant range extensions of known taxa. We are in the process of describing these new species, but an overarching work, placing the abundant new knowledge in the context of southern African Oxalis , is necessary. In this study we revise the state of knowledge regarding Richtersveld Oxalis and provide brief descriptions, diagnostic characters and a morphological identification key for the 20 species confirmed to occur in the region. Nine of the ten new species are currently only known from the Richtersveld, with seven having extremely limited known distributions. Surprisingly, levels of endemism in the Richtersveld are higher than the relatively well-explored central Namaqualand Oxalis flora, and suggest that, far from being depauperate in Oxalis , the Richtersveld region should be considered a centre of endemism for the genus in southern Africa.

  • Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region
    Phytotaxa, 2013
    Co-Authors: Jan Suda, Kenneth C. Oberlander, Jana Krejčíková, Radka Sudová, Léanne L. Dreyer
    Abstract:

    Two new multifoliolate species of Oxalis L. (Oxalidaceae) from the Hantam Karoo region of South Africa are described and illustrated: Oxalis carolina and O. filifoliolata. Both species occur in single populations in the extremely geophyte-rich area on the Bokkeveld Plateau in the Northern Cape Province. Morphological characteristics, phylogenetic position, habitat description and conservation status of the new species are provided, in addition to a diagnostic comparison with other phenotypically similar Cape species. Fifteen multifoliolate Oxalis species are currently recognized in South Africa, disregarding multifoliolate varieties of otherwise trifoliolate species. A key for multifoliolate Oxalis species known from the Bokkeveld Plateau is presented.

Peruzzi L. - One of the best experts on this subject based on the ideXlab platform.

  • Contributions for a vascular flora of Tuscany. X (606-663)
    2018
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Banfi E., Bardaro M.r., Bianchetto E., Bonari G., Cannucci S., Cantini D.
    Abstract:

    Contributions for a vascular flora of Tuscany. X (606-663). New localities and/or confirmations concerning 57 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 42 genera and 25 families are presented: Chenopodium, Polycnemum, Salsola (Amaranthaceae), Torilis (Apiaceae), Hieracium, Tragopogon (Asteraceae), Mahonia (Berberidaceae), Lepidium (Brassicaceae), Campanula (Campanulaceae), Herniaria (Caryophyllaceae), Dichondra (Convolvulaceae), Sedum (Crassulaceae), Cyperus, Schoenoplectus (Cyperaceae), Euphorbia (Euphorbiaceae), Ervilia, Medicago, Trifolium, Trigonella, Vicia (Fabaceae), Geranium (Geraniaceae), Juncus (Juncaceae), Tulipa (Liliaceae), Malva (Malvaceae), Broussonetia (Moraceae), Olea (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Callitriche (Plantaginaceae), Aira, Anthoxanthum, Catapodium, Hordeum, Imperata, Lolium, Poa, Polypogon, Setaria, Triticum (Poaceae), Fagopyrum (Polygonaceae), Aphanes (Rosaceae), Rubia (Rubiaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. X (606-663) [Contributions for a vascular flora of Tuscany. X (606-663)]
    2018
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Banfi E., Bianchetto E., Bonari G., Cannucci S., Bardaro M. R., Cantini D.
    Abstract:

    Contributions for a vascular flora of Tuscany. X (606-663). New localities and/or confirmations concerning 57 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 42 genera and 25 families are presented: Chenopodium, Polycnemum, Salsola (Amaranthaceae), Torilis (Apiaceae), Hieracium, Tragopogon (Asteraceae), Mahonia (Berberidaceae), Lepidium (Brassicaceae), Campanula (Campanulaceae), Herniaria (Caryophyllaceae), Dichondra (Convolvulaceae), Sedum (Crassulaceae), Cyperus, Schoenoplectus (Cyperaceae), Euphorbia (Euphorbiaceae), Ervilia, Medicago, Trifolium, Trigonella, Vicia (Fabaceae), Geranium (Geraniaceae), Juncus (Juncaceae), Tulipa (Liliaceae), Malva (Malvaceae), Broussonetia (Moraceae), Olea (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Callitriche (Plantaginaceae), Aira, Anthoxanthum, Catapodium, Hordeum, Imperata, Lolium, Poa, Polypogon, Setaria, Triticum (Poaceae), Fagopyrum (Polygonaceae), Aphanes (Rosaceae), Rubia (Rubiaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. IX (507-605)
    2017
    Co-Authors: Peruzzi L., Viciani D., Astuti G., Banfi E., Bonari G., Angiolini S., Benocci A., Bruni G., Caramante P., CarÉ M.
    Abstract:

    New localities and/or confirmations concerning 98 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 81 genera and 42 families are presented: Alisma, Baldellia (Alismataceae), Chenopodium (Amaranthaceae), Sternbergia (Amaryllidaceae), Bupleurum (Apiaceae), Vinca (Apocynaceae), Muscari, Polygonatum (Asparagaceae), Carlina, Centaurea, Chondrilla, Filago, Pallenis, Tagetes, Tragopogon, Tyrimnus (Asteraceae), Impatiens (Balsaminaceae), Campsis (Bignoniaceae), Cardamine, Iberis, Isatis, Lepidium, Rorippa (Brassicaceae), Humulus (Cannabaceae), Centranthus (Caprifoliaceae), Atocion, Paronychia, Sabulina, Scleranthus (Caryophyllaceae), Euonymus (Celastraceae), Fumana (Cistaceae), Phedimus, Sedum (Crassulaceae), Juniperus (Cupressacesae), Carex, Cyperus, Schoenus (Cyperaceae), Erica (Ericaceae), Euphorbia (Euphorbiaceae), Astragalus, Cytisus, Gleditsia, Lotus, Trifolium, Vicia (Fabaceae), Geranium (Geraniaceae), Philadelphus (Hydrangeaceae), Phacelia (Hydrophyllaceae), Hermodactylus, Iris, Romulea (Iridaceae), Salvia, Ziziphora (Lamiaceae), Gagea, Lilium (Liliaceae), Lindernia (Linderniaceae), Mirabilis (Nyctaginaceae), Nymphaea (Nymphaeaceae), Ligustrum (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Plantago, Veronica (Plantaginaceae), Armeria (Plumbaginaceae), Eleusine, Festuca, Phleum, Setaria, Stipa, Tragus (Poaceae), Stuckenia (Potamogetonaceae), Anemonoides, Ranunculus (Ranunculaceae), Reseda (Resedaceae), Aphanes, Cotoneaster, Eriobotrya, Malus, Rosa (Rosaceae), Galium (Rubiaceae), Nicotiana, (Solanaceae). In the end, the conservation status of the units and possible protection of the cited biotopes are discussed

  • Contributi alla flora vascolare di Toscana. VII (357-439)
    country:IT, 2015
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Avanzi A., Baldanzi C., Benesperi R., Bonari G.
    Abstract:

    New localities and/or confirmations concerning 83 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 71 genera and 33 families are presented: Carpobrotus (Aizoaceae), Alternanthera (Amaranthaceae), Leucojum (Amaryllidaceae), Anacyclus, Andryala, Carduus, Centaurea, Cichorium, Erigeron, Helichrysum, Helminthotheca, Hieracium, Limbarda, Pilosella, Scolymus, Sonchus, Tagetes, Urospermum, Xanthium (Asteraceae), Mahonia (Berberidaceae), Myosotis (Boraginaceae), Biscutella, Ionopsidium, Raphanus, Rapistrum (Brassicaceae), Buxus (Buxaceae), Vaccaria (Caryophyllaceae), Cistus (Cistaceae), Calystegia, Cuscuta (Convolvulaceae), Cymodocea (Cymodoceaceae), Cyperus (Cyperaceae), Amorpha, Emerus, Lathyrus, Lotus, Ononis, Trifolium, Vicia (Fabaceae), Quercus (Fagaceae), Geranium (Geraniaceae), Myriophyllum (Haloragaceae), Malva (Malvaceae), Epipogium, Himantoglossum (Orchidaceae), Orobanche (Orobanchaceae), Osyris (Santalaceae), Oxalis (Oxalidaceae), Pinus (Pinaceae), Anisantha, Avellinia, Avena, Corynephorus, Crypsis, Cutandia, Elytrigia, Lolium, Panicum, Polypogon, Sporobolus (Poaceae), Rumex (Polygonaceae), Lysimachia (Primulaceae), Eranthis, Ranunculus (Ranunculaceae), Rubus (Rosaceae), Crucianella, Galium (Rubiaceae), Verbascum (Scrophulariaceae), Solanum (Solanaceae), Tamarix (Tamaricaceae), Viola (Violaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. VII (357–439)
    2015
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Bonari G., Avanzi A., Baldanzi C., Benesperi R., D’antraccoli M.
    Abstract:

    Contributions for a vascular flora of Tuscany. VII (357-439). New localities and/or confirmations concerning 83 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 71 genera and 33 families are presented: Carpobrotus (Aizoaceae), Alternanthera (Amaranthaceae), Leucojum (Amaryllidaceae), Anacyclus, Andryala, Carduus, Centaurea, Cichorium, Erigeron, Helichrysum, Helminthotheca, Hieracium, Limbarda, Pilosella, Scolymus, Sonchus, Tagetes, Urospermum, Xanthium (Asteraceae), Mahonia (Berberidaceae), Myosotis (Boraginaceae), Biscutella, Ionopsidium, Raphanus, Rapistrum (Brassicaceae), Buxus (Buxaceae), Vaccaria (Caryophyllaceae), Cistus (Cistaceae), Calystegia, Cuscuta (Convolvulaceae), Cymodocea (Cymodoceaceae), Cyperus (Cyperaceae), Amorpha, Emerus, Lathyrus, Lotus, Ononis, Trifolium, Vicia (Fabaceae), Quercus (Fagaceae), Geranium (Geraniaceae), Myriophyllum (Haloragaceae), Malva (Malvaceae), Epipogium, Himantoglossum (Orchidaceae), Orobanche (Orobanchaceae), Osyris (Santalaceae), Oxalis (Oxalidaceae), Pinus (Pinaceae), Anisantha, Avellinia, Avena, Corynephorus, Crypsis, Cutandia, Elytrigia, Lolium, Panicum, Polypogon, Sporobolus (Poaceae), Rumex (Polygonaceae), Lysimachia (Primulaceae), Eranthis, Ranunculus (Ranunculaceae), Rubus (Rosaceae), Crucianella, Galium (Rubiaceae), Verbascum (Scrophulariaceae), Solanum (Solanaceae), Tamarix (Tamaricaceae), Viola (Violaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

Bonari G. - One of the best experts on this subject based on the ideXlab platform.

  • Contributions for a vascular flora of Tuscany. X (606-663)
    2018
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Banfi E., Bardaro M.r., Bianchetto E., Bonari G., Cannucci S., Cantini D.
    Abstract:

    Contributions for a vascular flora of Tuscany. X (606-663). New localities and/or confirmations concerning 57 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 42 genera and 25 families are presented: Chenopodium, Polycnemum, Salsola (Amaranthaceae), Torilis (Apiaceae), Hieracium, Tragopogon (Asteraceae), Mahonia (Berberidaceae), Lepidium (Brassicaceae), Campanula (Campanulaceae), Herniaria (Caryophyllaceae), Dichondra (Convolvulaceae), Sedum (Crassulaceae), Cyperus, Schoenoplectus (Cyperaceae), Euphorbia (Euphorbiaceae), Ervilia, Medicago, Trifolium, Trigonella, Vicia (Fabaceae), Geranium (Geraniaceae), Juncus (Juncaceae), Tulipa (Liliaceae), Malva (Malvaceae), Broussonetia (Moraceae), Olea (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Callitriche (Plantaginaceae), Aira, Anthoxanthum, Catapodium, Hordeum, Imperata, Lolium, Poa, Polypogon, Setaria, Triticum (Poaceae), Fagopyrum (Polygonaceae), Aphanes (Rosaceae), Rubia (Rubiaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. X (606-663) [Contributions for a vascular flora of Tuscany. X (606-663)]
    2018
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Banfi E., Bianchetto E., Bonari G., Cannucci S., Bardaro M. R., Cantini D.
    Abstract:

    Contributions for a vascular flora of Tuscany. X (606-663). New localities and/or confirmations concerning 57 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 42 genera and 25 families are presented: Chenopodium, Polycnemum, Salsola (Amaranthaceae), Torilis (Apiaceae), Hieracium, Tragopogon (Asteraceae), Mahonia (Berberidaceae), Lepidium (Brassicaceae), Campanula (Campanulaceae), Herniaria (Caryophyllaceae), Dichondra (Convolvulaceae), Sedum (Crassulaceae), Cyperus, Schoenoplectus (Cyperaceae), Euphorbia (Euphorbiaceae), Ervilia, Medicago, Trifolium, Trigonella, Vicia (Fabaceae), Geranium (Geraniaceae), Juncus (Juncaceae), Tulipa (Liliaceae), Malva (Malvaceae), Broussonetia (Moraceae), Olea (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Callitriche (Plantaginaceae), Aira, Anthoxanthum, Catapodium, Hordeum, Imperata, Lolium, Poa, Polypogon, Setaria, Triticum (Poaceae), Fagopyrum (Polygonaceae), Aphanes (Rosaceae), Rubia (Rubiaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. IX (507-605)
    2017
    Co-Authors: Peruzzi L., Viciani D., Astuti G., Banfi E., Bonari G., Angiolini S., Benocci A., Bruni G., Caramante P., CarÉ M.
    Abstract:

    New localities and/or confirmations concerning 98 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 81 genera and 42 families are presented: Alisma, Baldellia (Alismataceae), Chenopodium (Amaranthaceae), Sternbergia (Amaryllidaceae), Bupleurum (Apiaceae), Vinca (Apocynaceae), Muscari, Polygonatum (Asparagaceae), Carlina, Centaurea, Chondrilla, Filago, Pallenis, Tagetes, Tragopogon, Tyrimnus (Asteraceae), Impatiens (Balsaminaceae), Campsis (Bignoniaceae), Cardamine, Iberis, Isatis, Lepidium, Rorippa (Brassicaceae), Humulus (Cannabaceae), Centranthus (Caprifoliaceae), Atocion, Paronychia, Sabulina, Scleranthus (Caryophyllaceae), Euonymus (Celastraceae), Fumana (Cistaceae), Phedimus, Sedum (Crassulaceae), Juniperus (Cupressacesae), Carex, Cyperus, Schoenus (Cyperaceae), Erica (Ericaceae), Euphorbia (Euphorbiaceae), Astragalus, Cytisus, Gleditsia, Lotus, Trifolium, Vicia (Fabaceae), Geranium (Geraniaceae), Philadelphus (Hydrangeaceae), Phacelia (Hydrophyllaceae), Hermodactylus, Iris, Romulea (Iridaceae), Salvia, Ziziphora (Lamiaceae), Gagea, Lilium (Liliaceae), Lindernia (Linderniaceae), Mirabilis (Nyctaginaceae), Nymphaea (Nymphaeaceae), Ligustrum (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Plantago, Veronica (Plantaginaceae), Armeria (Plumbaginaceae), Eleusine, Festuca, Phleum, Setaria, Stipa, Tragus (Poaceae), Stuckenia (Potamogetonaceae), Anemonoides, Ranunculus (Ranunculaceae), Reseda (Resedaceae), Aphanes, Cotoneaster, Eriobotrya, Malus, Rosa (Rosaceae), Galium (Rubiaceae), Nicotiana, (Solanaceae). In the end, the conservation status of the units and possible protection of the cited biotopes are discussed

  • Contributi alla flora vascolare di Toscana. VII (357-439)
    country:IT, 2015
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Avanzi A., Baldanzi C., Benesperi R., Bonari G.
    Abstract:

    New localities and/or confirmations concerning 83 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 71 genera and 33 families are presented: Carpobrotus (Aizoaceae), Alternanthera (Amaranthaceae), Leucojum (Amaryllidaceae), Anacyclus, Andryala, Carduus, Centaurea, Cichorium, Erigeron, Helichrysum, Helminthotheca, Hieracium, Limbarda, Pilosella, Scolymus, Sonchus, Tagetes, Urospermum, Xanthium (Asteraceae), Mahonia (Berberidaceae), Myosotis (Boraginaceae), Biscutella, Ionopsidium, Raphanus, Rapistrum (Brassicaceae), Buxus (Buxaceae), Vaccaria (Caryophyllaceae), Cistus (Cistaceae), Calystegia, Cuscuta (Convolvulaceae), Cymodocea (Cymodoceaceae), Cyperus (Cyperaceae), Amorpha, Emerus, Lathyrus, Lotus, Ononis, Trifolium, Vicia (Fabaceae), Quercus (Fagaceae), Geranium (Geraniaceae), Myriophyllum (Haloragaceae), Malva (Malvaceae), Epipogium, Himantoglossum (Orchidaceae), Orobanche (Orobanchaceae), Osyris (Santalaceae), Oxalis (Oxalidaceae), Pinus (Pinaceae), Anisantha, Avellinia, Avena, Corynephorus, Crypsis, Cutandia, Elytrigia, Lolium, Panicum, Polypogon, Sporobolus (Poaceae), Rumex (Polygonaceae), Lysimachia (Primulaceae), Eranthis, Ranunculus (Ranunculaceae), Rubus (Rosaceae), Crucianella, Galium (Rubiaceae), Verbascum (Scrophulariaceae), Solanum (Solanaceae), Tamarix (Tamaricaceae), Viola (Violaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. VII (357–439)
    2015
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Bonari G., Avanzi A., Baldanzi C., Benesperi R., D’antraccoli M.
    Abstract:

    Contributions for a vascular flora of Tuscany. VII (357-439). New localities and/or confirmations concerning 83 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 71 genera and 33 families are presented: Carpobrotus (Aizoaceae), Alternanthera (Amaranthaceae), Leucojum (Amaryllidaceae), Anacyclus, Andryala, Carduus, Centaurea, Cichorium, Erigeron, Helichrysum, Helminthotheca, Hieracium, Limbarda, Pilosella, Scolymus, Sonchus, Tagetes, Urospermum, Xanthium (Asteraceae), Mahonia (Berberidaceae), Myosotis (Boraginaceae), Biscutella, Ionopsidium, Raphanus, Rapistrum (Brassicaceae), Buxus (Buxaceae), Vaccaria (Caryophyllaceae), Cistus (Cistaceae), Calystegia, Cuscuta (Convolvulaceae), Cymodocea (Cymodoceaceae), Cyperus (Cyperaceae), Amorpha, Emerus, Lathyrus, Lotus, Ononis, Trifolium, Vicia (Fabaceae), Quercus (Fagaceae), Geranium (Geraniaceae), Myriophyllum (Haloragaceae), Malva (Malvaceae), Epipogium, Himantoglossum (Orchidaceae), Orobanche (Orobanchaceae), Osyris (Santalaceae), Oxalis (Oxalidaceae), Pinus (Pinaceae), Anisantha, Avellinia, Avena, Corynephorus, Crypsis, Cutandia, Elytrigia, Lolium, Panicum, Polypogon, Sporobolus (Poaceae), Rumex (Polygonaceae), Lysimachia (Primulaceae), Eranthis, Ranunculus (Ranunculaceae), Rubus (Rosaceae), Crucianella, Galium (Rubiaceae), Verbascum (Scrophulariaceae), Solanum (Solanaceae), Tamarix (Tamaricaceae), Viola (Violaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

Léanne L. Dreyer - One of the best experts on this subject based on the ideXlab platform.

  • Two new Oxalis (Oxalidaceae) species, including 5 varieties, from the Richtersveld of South Africa
    Phytotaxa, 2017
    Co-Authors: Léanne L. Dreyer, Francois Roets, Kenneth C. Oberlander
    Abstract:

    Two new species of Oxalis (Oxalidaceae) from the Richtersveld are described, namely Oxalis canaliculata and O. magnifolia . These widespread species are morphologically distinct and easily identified, but both contain populations in which individuals consistently differ morphologically from typical varieties. The typical variety of Oxalis canaliculata is widespread throughout the Richtersveld, while O. canaliculata var. trifoliolata is known from a single population and O. canaliculata var. graniticola is known only from granite outcrops. Oxalis magnifolia includes the typical variety that is widespread and Oxalis magnifolia var. reduplicata , which is only known from two populations in close proximity to one another. Morphological characters, preliminary phylogenetic position based on data from the nuclear ITS region, habitat description and formal taxonomic descriptions are provided for all taxa. The diagnostic characters of the new species are compared to all phenotypically similar southern African species.

  • An Unusual Night-Flowering Oxalis from South Africa (Oxalidaceae)
    Systematic Botany, 2014
    Co-Authors: Léanne L. Dreyer, R. M. Macfarlane, Francois Roets, Kenneth C. Oberlander
    Abstract:

    Abstract A new Oxalis (Oxalidaceae) species from the Hantamsberg (South Africa) is described and typified as Oxalis noctiflora using morphological, palynological, and molecular characters. Superficially it closely resembles Oxalis aridicola, Oxalis callosa, Oxalis odorata, and Oxalis primuloides, and it shares a unique supra-areolate pollen type with most of these species. No single vegetative morphological character defines this species, but a unique combination of bulb and leaflet characters distinguishes it from all other known species. The flowers of Oxalis noctiflora are unique for the genus in displaying typical moth-pollination characters. The white flowers open at night, have a long, unusually narrow, corolla tube, and produce a strong sweet scent. All previously described Oxalis species have flowers that open during the day. Phylogenetic analyses based on nuclear Internal Transcribed Spacer data placed this species sister to O. aridicola within a clade of morphologically and palynologically simil...

  • Discovery of substantial Oxalis (Oxalidaceae) diversity and endemism in an arid biodiversity hotspot
    Phytotaxa, 2014
    Co-Authors: Kenneth C. Oberlander, Francois Roets, Léanne L. Dreyer
    Abstract:

    Despite globally acknowledged diversity levels, the flora of the arid Richtersveld of South Africa remains poorly known for certain plant lineages, including the eudicot genus Oxalis . Cryptic habit, inaccessible and harsh terrain and the lack of focussed systematic attention has led to the assumption that the region is depauperate in this genus. However, recent exploration proved quite the opposite and revealed a wealth of Oxalis species, including at least ten undescribed species and many significant range extensions of known taxa. We are in the process of describing these new species, but an overarching work, placing the abundant new knowledge in the context of southern African Oxalis , is necessary. In this study we revise the state of knowledge regarding Richtersveld Oxalis and provide brief descriptions, diagnostic characters and a morphological identification key for the 20 species confirmed to occur in the region. Nine of the ten new species are currently only known from the Richtersveld, with seven having extremely limited known distributions. Surprisingly, levels of endemism in the Richtersveld are higher than the relatively well-explored central Namaqualand Oxalis flora, and suggest that, far from being depauperate in Oxalis , the Richtersveld region should be considered a centre of endemism for the genus in southern Africa.

  • Two new species of Oxalis (Oxalidaceae) from the Greater Cape Floristic Region
    Phytotaxa, 2013
    Co-Authors: Jan Suda, Kenneth C. Oberlander, Jana Krejčíková, Radka Sudová, Léanne L. Dreyer
    Abstract:

    Two new multifoliolate species of Oxalis L. (Oxalidaceae) from the Hantam Karoo region of South Africa are described and illustrated: Oxalis carolina and O. filifoliolata. Both species occur in single populations in the extremely geophyte-rich area on the Bokkeveld Plateau in the Northern Cape Province. Morphological characteristics, phylogenetic position, habitat description and conservation status of the new species are provided, in addition to a diagnostic comparison with other phenotypically similar Cape species. Fifteen multifoliolate Oxalis species are currently recognized in South Africa, disregarding multifoliolate varieties of otherwise trifoliolate species. A key for multifoliolate Oxalis species known from the Bokkeveld Plateau is presented.

  • Two new Oxalis (Oxalidaceae) species from the Richtersveld National Park, South Africa
    Phytotaxa, 2013
    Co-Authors: Léanne L. Dreyer, Francois Roets, Kenneth C. Oberlander
    Abstract:

    Two new Oxalis species from the Richtersveld National Park (South Africa) are described and typified. Both species show strong morphological resemblance to members of the South African Oxalis section Cernuae . Oxalis nivea sp. nov . closely resembles the well-known weed O. pes-caprae , but it bears white flowers, and has a very restricted distribution range north of the northernmost known locality of O. pes-caprae . Oxalis rosettifolia sp. nov . is distinguished from all other species by a combination of a flat basal rosette of leaves, terete petioles, flask-shaped floral tubes and at least some enlarged, spathulate bracts at the terminal articulation of the peduncle. Phylogenetic analyses based on nuclear ITS and plastid trn SG data confirmed the placement of both of these species within a clade containing O. pes-caprae . The exact placement of these two species differs between ITS- and trn SG-based trees, but both analyses confirm a close relationship between the two new species and O. copiosa and O. cf . haedulipes .

Viciani D. - One of the best experts on this subject based on the ideXlab platform.

  • Contributions for a vascular flora of Tuscany. X (606-663)
    2018
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Banfi E., Bardaro M.r., Bianchetto E., Bonari G., Cannucci S., Cantini D.
    Abstract:

    Contributions for a vascular flora of Tuscany. X (606-663). New localities and/or confirmations concerning 57 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 42 genera and 25 families are presented: Chenopodium, Polycnemum, Salsola (Amaranthaceae), Torilis (Apiaceae), Hieracium, Tragopogon (Asteraceae), Mahonia (Berberidaceae), Lepidium (Brassicaceae), Campanula (Campanulaceae), Herniaria (Caryophyllaceae), Dichondra (Convolvulaceae), Sedum (Crassulaceae), Cyperus, Schoenoplectus (Cyperaceae), Euphorbia (Euphorbiaceae), Ervilia, Medicago, Trifolium, Trigonella, Vicia (Fabaceae), Geranium (Geraniaceae), Juncus (Juncaceae), Tulipa (Liliaceae), Malva (Malvaceae), Broussonetia (Moraceae), Olea (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Callitriche (Plantaginaceae), Aira, Anthoxanthum, Catapodium, Hordeum, Imperata, Lolium, Poa, Polypogon, Setaria, Triticum (Poaceae), Fagopyrum (Polygonaceae), Aphanes (Rosaceae), Rubia (Rubiaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. X (606-663) [Contributions for a vascular flora of Tuscany. X (606-663)]
    2018
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Banfi E., Bianchetto E., Bonari G., Cannucci S., Bardaro M. R., Cantini D.
    Abstract:

    Contributions for a vascular flora of Tuscany. X (606-663). New localities and/or confirmations concerning 57 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 42 genera and 25 families are presented: Chenopodium, Polycnemum, Salsola (Amaranthaceae), Torilis (Apiaceae), Hieracium, Tragopogon (Asteraceae), Mahonia (Berberidaceae), Lepidium (Brassicaceae), Campanula (Campanulaceae), Herniaria (Caryophyllaceae), Dichondra (Convolvulaceae), Sedum (Crassulaceae), Cyperus, Schoenoplectus (Cyperaceae), Euphorbia (Euphorbiaceae), Ervilia, Medicago, Trifolium, Trigonella, Vicia (Fabaceae), Geranium (Geraniaceae), Juncus (Juncaceae), Tulipa (Liliaceae), Malva (Malvaceae), Broussonetia (Moraceae), Olea (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Callitriche (Plantaginaceae), Aira, Anthoxanthum, Catapodium, Hordeum, Imperata, Lolium, Poa, Polypogon, Setaria, Triticum (Poaceae), Fagopyrum (Polygonaceae), Aphanes (Rosaceae), Rubia (Rubiaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. IX (507-605)
    2017
    Co-Authors: Peruzzi L., Viciani D., Astuti G., Banfi E., Bonari G., Angiolini S., Benocci A., Bruni G., Caramante P., CarÉ M.
    Abstract:

    New localities and/or confirmations concerning 98 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 81 genera and 42 families are presented: Alisma, Baldellia (Alismataceae), Chenopodium (Amaranthaceae), Sternbergia (Amaryllidaceae), Bupleurum (Apiaceae), Vinca (Apocynaceae), Muscari, Polygonatum (Asparagaceae), Carlina, Centaurea, Chondrilla, Filago, Pallenis, Tagetes, Tragopogon, Tyrimnus (Asteraceae), Impatiens (Balsaminaceae), Campsis (Bignoniaceae), Cardamine, Iberis, Isatis, Lepidium, Rorippa (Brassicaceae), Humulus (Cannabaceae), Centranthus (Caprifoliaceae), Atocion, Paronychia, Sabulina, Scleranthus (Caryophyllaceae), Euonymus (Celastraceae), Fumana (Cistaceae), Phedimus, Sedum (Crassulaceae), Juniperus (Cupressacesae), Carex, Cyperus, Schoenus (Cyperaceae), Erica (Ericaceae), Euphorbia (Euphorbiaceae), Astragalus, Cytisus, Gleditsia, Lotus, Trifolium, Vicia (Fabaceae), Geranium (Geraniaceae), Philadelphus (Hydrangeaceae), Phacelia (Hydrophyllaceae), Hermodactylus, Iris, Romulea (Iridaceae), Salvia, Ziziphora (Lamiaceae), Gagea, Lilium (Liliaceae), Lindernia (Linderniaceae), Mirabilis (Nyctaginaceae), Nymphaea (Nymphaeaceae), Ligustrum (Oleaceae), Oenothera (Onagraceae), Oxalis (Oxalidaceae), Plantago, Veronica (Plantaginaceae), Armeria (Plumbaginaceae), Eleusine, Festuca, Phleum, Setaria, Stipa, Tragus (Poaceae), Stuckenia (Potamogetonaceae), Anemonoides, Ranunculus (Ranunculaceae), Reseda (Resedaceae), Aphanes, Cotoneaster, Eriobotrya, Malus, Rosa (Rosaceae), Galium (Rubiaceae), Nicotiana, (Solanaceae). In the end, the conservation status of the units and possible protection of the cited biotopes are discussed

  • Contributi alla flora vascolare di Toscana. VII (357-439)
    country:IT, 2015
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Avanzi A., Baldanzi C., Benesperi R., Bonari G.
    Abstract:

    New localities and/or confirmations concerning 83 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 71 genera and 33 families are presented: Carpobrotus (Aizoaceae), Alternanthera (Amaranthaceae), Leucojum (Amaryllidaceae), Anacyclus, Andryala, Carduus, Centaurea, Cichorium, Erigeron, Helichrysum, Helminthotheca, Hieracium, Limbarda, Pilosella, Scolymus, Sonchus, Tagetes, Urospermum, Xanthium (Asteraceae), Mahonia (Berberidaceae), Myosotis (Boraginaceae), Biscutella, Ionopsidium, Raphanus, Rapistrum (Brassicaceae), Buxus (Buxaceae), Vaccaria (Caryophyllaceae), Cistus (Cistaceae), Calystegia, Cuscuta (Convolvulaceae), Cymodocea (Cymodoceaceae), Cyperus (Cyperaceae), Amorpha, Emerus, Lathyrus, Lotus, Ononis, Trifolium, Vicia (Fabaceae), Quercus (Fagaceae), Geranium (Geraniaceae), Myriophyllum (Haloragaceae), Malva (Malvaceae), Epipogium, Himantoglossum (Orchidaceae), Orobanche (Orobanchaceae), Osyris (Santalaceae), Oxalis (Oxalidaceae), Pinus (Pinaceae), Anisantha, Avellinia, Avena, Corynephorus, Crypsis, Cutandia, Elytrigia, Lolium, Panicum, Polypogon, Sporobolus (Poaceae), Rumex (Polygonaceae), Lysimachia (Primulaceae), Eranthis, Ranunculus (Ranunculaceae), Rubus (Rosaceae), Crucianella, Galium (Rubiaceae), Verbascum (Scrophulariaceae), Solanum (Solanaceae), Tamarix (Tamaricaceae), Viola (Violaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

  • Contributi per una flora vascolare di Toscana. VII (357–439)
    2015
    Co-Authors: Peruzzi L., Viciani D., Angiolini C., Astuti G., Bonari G., Avanzi A., Baldanzi C., Benesperi R., D’antraccoli M.
    Abstract:

    Contributions for a vascular flora of Tuscany. VII (357-439). New localities and/or confirmations concerning 83 specific and subspecific plant taxa of Tuscan vascular flora, belonging to 71 genera and 33 families are presented: Carpobrotus (Aizoaceae), Alternanthera (Amaranthaceae), Leucojum (Amaryllidaceae), Anacyclus, Andryala, Carduus, Centaurea, Cichorium, Erigeron, Helichrysum, Helminthotheca, Hieracium, Limbarda, Pilosella, Scolymus, Sonchus, Tagetes, Urospermum, Xanthium (Asteraceae), Mahonia (Berberidaceae), Myosotis (Boraginaceae), Biscutella, Ionopsidium, Raphanus, Rapistrum (Brassicaceae), Buxus (Buxaceae), Vaccaria (Caryophyllaceae), Cistus (Cistaceae), Calystegia, Cuscuta (Convolvulaceae), Cymodocea (Cymodoceaceae), Cyperus (Cyperaceae), Amorpha, Emerus, Lathyrus, Lotus, Ononis, Trifolium, Vicia (Fabaceae), Quercus (Fagaceae), Geranium (Geraniaceae), Myriophyllum (Haloragaceae), Malva (Malvaceae), Epipogium, Himantoglossum (Orchidaceae), Orobanche (Orobanchaceae), Osyris (Santalaceae), Oxalis (Oxalidaceae), Pinus (Pinaceae), Anisantha, Avellinia, Avena, Corynephorus, Crypsis, Cutandia, Elytrigia, Lolium, Panicum, Polypogon, Sporobolus (Poaceae), Rumex (Polygonaceae), Lysimachia (Primulaceae), Eranthis, Ranunculus (Ranunculaceae), Rubus (Rosaceae), Crucianella, Galium (Rubiaceae), Verbascum (Scrophulariaceae), Solanum (Solanaceae), Tamarix (Tamaricaceae), Viola (Violaceae). In the end, the conservation status of the units and eventual protection of the cited biotopes are discussed

Related terms

Oxalidaceae - 15 days free trial to Access Experts & Abstracts