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Gideon F. Smith - One of the best experts on this subject based on the ideXlab platform.
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Taxonomy and nomenclature of Kalanchoe ×laetivirens (Crassulaceae subfam. Kalanchooideae), a further invasive nothospecies from Madagascar
Phytotaxa, 2020Co-Authors: Gideon F. SmithAbstract:The status of Kalanchoe laetivirens (Crassulaceae subfam. Kalanchooideae), which was recently for the first time recorded as naturalised beyond its native Madagascar, is changed to that of nothospecies as evidence indicates that it is of hybrid origin. An amplified description is provided for K. ×laetivirens and the nothospecies is illustrated.
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The taxonomy and nomenclature of Kalanchoe humilis , K. prasina , and K. figueiredoi (Crassulaceae subfam. Kalanchooideae)
Phytotaxa, 2020Co-Authors: Gideon F. SmithAbstract:The taxonomy and nomenclature of Kalanchoe humilis, K. prasina, and K. figueiredoi (Crassulaceae subfam. Kalanchooideae) are discussed. Based on available evidence K. humilis and K. prasina are accepted as two species from eastern and south-tropical Africa, and K. figueiredoi is included in the synonymy of K. prasina.
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Kalanchoe ×gunniae Gideon F.Sm & Figueiredo (Crassulaceae), a new South African nothospecies derived from Kalanchoe paniculata Harv. × Kalanchoe sexangularis N.E.Br.
Bradleya, 2019Co-Authors: Gideon F. Smith, Estrela Figueiredo, João Loureiro, Neil R. CrouchAbstract:The nothospecies Kalanchoe ×gunniae Gideon F.Sm & Figueiredo (Crassulaceae), a hybrid between Kalanchoe paniculata Harv. and Kalanchoe sexangularis N.E.Br., is described from Pretoria, South Africa.
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Notes on Adromischus umbraticola C.A.Sm. subsp. umbraticola and A. umbraticola subsp. ramosus Toelken (Crassulaceae)
Bradleya, 2019Co-Authors: Gideon F. Smith, Neil R. Crouch, Delia OosthuizenAbstract:We discuss and illustrate differences in the vegetative and reproductive morphology, and geographical distribution between Adromischus umbraticola C.A.Sm. subsp. umbraticola and the little known A. umbraticola subsp. ramosus Toelken (Crassulaceae). Both subspecies are endemic to South Africa, but neither is restricted to any of the recognised Regions or Centres of Endemism.
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The taxonomy of Kalanchoe laxiflora Baker, a Madagascan species of Crassulaceae
Bradleya, 2019Co-Authors: Gideon F. Smith, Estrela FigueiredoAbstract:The taxonomy of the Madagascan Kalanchoe laxiflora Baker (Crassulaceae) is discussed and clarified. An amplified description is provided for the species, and differences between it and K. fedtschenkoi Raym.-Hamet & H.Perrier, a close relative with which it has been confused in the past, are recorded. The synonymy and typification of names included under K. laxiflora are elucidated.
Estrela Figueiredo - One of the best experts on this subject based on the ideXlab platform.
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Kalanchoe ×gunniae Gideon F.Sm & Figueiredo (Crassulaceae), a new South African nothospecies derived from Kalanchoe paniculata Harv. × Kalanchoe sexangularis N.E.Br.
Bradleya, 2019Co-Authors: Gideon F. Smith, Estrela Figueiredo, João Loureiro, Neil R. CrouchAbstract:The nothospecies Kalanchoe ×gunniae Gideon F.Sm & Figueiredo (Crassulaceae), a hybrid between Kalanchoe paniculata Harv. and Kalanchoe sexangularis N.E.Br., is described from Pretoria, South Africa.
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The taxonomy of Kalanchoe laxiflora Baker, a Madagascan species of Crassulaceae
Bradleya, 2019Co-Authors: Gideon F. Smith, Estrela FigueiredoAbstract:The taxonomy of the Madagascan Kalanchoe laxiflora Baker (Crassulaceae) is discussed and clarified. An amplified description is provided for the species, and differences between it and K. fedtschenkoi Raym.-Hamet & H.Perrier, a close relative with which it has been confused in the past, are recorded. The synonymy and typification of names included under K. laxiflora are elucidated.
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Crassulaceae of the World
Kalanchoe (Crassulaceae) in Southern Africa, 2019Co-Authors: Gideon F. Smith, Estrela Figueiredo, Abraham E. Van WykAbstract:Abstract At present, about 1400 species that cover a vast array of growth forms are included in the family Crassulaceae. However, most species are shrubby or herbaceous perennials, with very few attaining treelike dimensions. Leaf succulence is common, with some species also displaying stem succulence. Most species show obvious traits associated with growing in xerophytic habits, but a few very widespread aquatic species are also known. The family is represented on most continents, especially in temperate and subtropical regions. To familiarise the reader with the genus-rank diversity in the Crassulaceae, a pictorial gallery of some non-southern African genera of the Crassulaceae is presented.
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Crassulaceae in Southern Africa
Kalanchoe (Crassulaceae) in Southern Africa, 2019Co-Authors: Gideon F. Smith, Estrela Figueiredo, Abraham E. Van WykAbstract:Abstract Although the family Crassulaceae has a very wide global distribution range, the family has definite areas of high present-day species diversity. These include the southern Africa subcontinent, Mexico, and parts of southwestern North America, Mediterranean Europe, and parts of the Orient. Five of the c. 34 genera recognised in the Crassulaceae are represented naturally in southern Africa. These genera, Adromischus Lem., Cotyledon L., Crassula L., Kalanchoe Adans., and Tylecodon Toelken, are illustrated and briefly discussed with reference to their diversity and distribution ranges in the subcontinent and beyond. To familiarise the reader with the genus-rank diversity in southern African Crassulaceae, a pictorial gallery of southern African genera, excluding Kalanchoe, in the family is presented.
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Notes on the geographical distribution range of Sedum mucizonia (Ortega) Raym.-Hamet (Crassulaceae), a miniature, annual succulent, in continental Portugal
Bradleya, 2016Co-Authors: Gideon F. Smith, Estrela Figueiredo, Vasco SilvaAbstract:In continental Portugal, Sedum mucizonia (Ortega) Raym.-Hamet (Crassulaceae), a miniature, annual succulent, is known to occur especially in southern and central-western coastal areas, as well as along the central- and southeastern border between Portugal and Spain. Current records indicate that its northwestern-most limit in central Portugal is in the Parque Natural das Serras de Aire e Candeeiros, in the province of Estremadura. With at least 35% of the Crassulaceae species known from Portugal having been recorded from this region, it is established as a significant present-day centre of diversity for the family in the country. In addition to a distribution map for S. mucizonia in central continental Portugal, illustrations of the species are provided for the various locations from which the species has been collected in that part of the country. We also establish beyond doubt the location of the type locality of S. mucizonia, which is at San Sebastian, near Puertollano in the province of Ciudad Real, in Spain.
Lorenzo Gallo - One of the best experts on this subject based on the ideXlab platform.
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Past presence of Sedum rubens and Umbilicus horizontalis (Crassulaceae) in the flora of Eritrea
Webbia, 2014Co-Authors: Lorenzo GalloAbstract:The author reports the past presence of Sedum rubens L. and Umbilicus horizontalis Guss. (Crassulaceae) for the state of Eritrea; at the same time, Sedum hispanicum L. must be excluded from the checklist of that country.
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Sedum ochroleucum subsp. mediterraneum (Crassulaceae), a new Italian endemic
Willdenowia, 2014Co-Authors: Lorenzo GalloAbstract:Abstract Gallo L.: Sedum ochroleucum subsp. mediterraneum (Crassulaceae), a new Italian endemic. — Willdenowia 44: 27–33. 6 March 2014. — Version of record published online ahead of inclusion in April 2014 issue; ISSN 1868-6397; © 2014 BGBM Berlin-Dahlem. DOI: http://dx.doi.org/10.3372/wi.44.44104 A new subspecies of Sedum ochroleucum Chaix (S. ser. Rupestria Berger, Crassulaceae), endemic to the Italian Peninsula, is described. It differs from the typical subspecies mainly by the glabrous sepals and the semi-erect to spreading petals at anthesis.
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Neotypification of Sedum ochroleucum Chaix (Crassulaceae)
Natural History Sciences, 2013Co-Authors: Lorenzo GalloAbstract:No original materials (herbarium specimens or drawings) connected with the protologue of Sedum ochroleucum Chaix (Crassulaceae) are to be found; thus the name has been neotypified, selecting a specimen collected by the author in the type locality at Rabou, near Gap (France).
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taxonomic notes on some species of sedum ser rupestria berger Crassulaceae and typification of their names
Webbia, 2008Co-Authors: Lorenzo GalloAbstract:Summary Three validly published names of Sedum ser. Rupestria Berger (Crassulaceae) are typified: S. xluteolum Chab., S. nicaeense All. and Sedum sediforme (Jacq.) Pau (Sempervivum sediforme Jacq.); their taxonomical arrangement is also reassessed. The name S. nicaeense, commonly treated as a synonym of Sempervivum sediforme, is here accepted as correct for the hybrid between S. sediforme and S. rupestre L., currently known as S. xluteolum.
Ángel Bañares Baudet - One of the best experts on this subject based on the ideXlab platform.
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Typification of Aichryson pachycaulon subsp. praetermissum and description of A. roseum sp. nov. (Crassulaceae) from Gran Canaria, Canary Islands, Spain
Willdenowia, 2017Co-Authors: Ángel Bañares BaudetAbstract:Abstract: A neotype and emended description are provided for the rare Gran Canaria endemic Aichryson pachycaulon subsp. praetermissum Bramwell (Crassulaceae) using a gathering from its original type locality. Additionally, A. roseum, a new species locally common on Gran Canaria, is described. Illustrations and comparisons with possibly related biennial plants of A. sect. Aichryson are also provided. Citation: Banares Baudet A. 2017: Typification of Aichryson pachycaulon subsp. praetermissum and description of A. roseum sp. nov. (Crassulaceae) from Gran Canaria, Canary Islands, Spain. — Willdenowia 47: 127–134. doi: https://doi.org/10.3372/wi.47.47204 Version of record first published online on 10 July 2017 ahead of inclusion in August 2017 issue.
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Typification of five names of endemic Canarian Aichryson species (Crassulaceae) described by C. Bolle
Willdenowia, 1997Co-Authors: Ángel Bañares BaudetAbstract:Abstract Banares Baudet, A.: Typification of five names of endemic Canarian Aichryson species (Crassulaceae) described by C. Bolle. — Willdenowia 27: 281–284. 1997. — ISSN 0511-9618. Original material of five Aichryson species described by Carl Bolle in 1859 has been traced in the Berlin herbarium (B). Out of this material, lectotypes of Bolle's names Aichryson bollei, A. parlatorei, A. pachycaulon, A. parviflorum and A. porphyrogennetos are chosen.
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AEONIUM PSEUDOURBICUM SP. NOV. (Crassulaceae), NUEVO ENDEMISMO
1992Co-Authors: Ángel Bañares BaudetAbstract:BANARES BAUDET, A. (1992). Aeonium pseudourbicum sp. nov. (Crassulaceae), a new endemicfromTenerife(CanaryIslands)./lna/ej/flr
A B R Witt - One of the best experts on this subject based on the ideXlab platform.
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alcidodes sedi col curculionidae a natural enemy of bryophyllum delagoense Crassulaceae in south africa and a possible candidate agent for the biological control of this weed in australia
Biological Control, 2004Co-Authors: A B R Witt, A J Mcconnachie, R StalsAbstract:The Madagascan endemic, Bryophyllum delagoense (Crassulaceae), is a major weed in Queensland, Australia. Despite having first been recorded in Australia in the 1940s, it is far more invasive there than on the African mainland where it was introduced more than 170 years ago. This may be due to a number of factors, one of which could be the occurrence of new natural enemy associations in southern Africa. Among the insects of crassulaceous plants that have extended their host ranges, a stem-boring weevil, Alcidodes sedi, was studied to elucidate its status as a natural enemy of B. delagoense in southern Africa and as a candidate biological control agent for introduction to Australia. Laboratory studies indicated that damage inflicted by adult and larval feeding caused significant reductions in stem length and number of leaves. Preliminary host-range trials revealed that A. sedi can complete its development on other species in the Crassulaceae, including most of the introduced Bryophyllum species and some Kalanchoe species native to South Africa. Despite the oligophagous nature of A. sedi and the fact that it can complete its development on a number of ornamental species in the Crassulaceae, it should be considered a potential biological control agent in Australia. All of the native Crassulaceae in Australia are in the genus Crassula, most of which are very small and therefore unlikely to support the development of a large weevil like A. sedi. However, additional host-range trials will have to be undertaken in Australia to determine whether the weevil can be considered safe for release.
