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John G Conran - One of the best experts on this subject based on the ideXlab platform.
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the monocot fossil pollen record of new zealand and its implications for palaeoclimates and environments
Botanical Journal of the Linnean Society, 2015Co-Authors: John G Conran, Dallas C Mildenhall, Ian J Raine, Elizabeth M Kennedy, Daphne E LeeAbstract:The record of fossil monocotyledonous pollen in New Zealand is summarized and discussed in terms of age and palaeoecological implications. The fossil monocot pollen record covers reports of taxa variously ranging from the Palaeogene to the present, with diverse groups represented, including Alstroemeriaceae: Luzuriagoideae (Luzuriaga), Amaryllidaceae (aff. Hymenocallis?), Arecaceae (including Nypa and aff. Metroxylon), Asparagaceae: Lomandroideae (Arthropodium, Cordyline), Asteliaceae (Astelia and Collospermum), Cyperaceae, Anarthriaceae (including Hopkinsiaceae and Lyginiaceae) or Flagellariaceae?, Orchidaceae, Pandanaceae, Poaceae, Restionaceae (aff. Empodisma), Ripogonaceae (Ripogonum), Typhaceae (Typha and Sparganium) and Asphodelaceae (= Xanthorrhoeaceae): Hemerocallidoideae (Dianella and Phormium). There are also monosulcate and reticulate lilioid and echinate and gemmate arecoid palynomorphs known from the Late Cretaceous. The possible biogeographical and palaeoecological implications of these records, especially for tropical or subtropical taxa occurring at mid to high southern latitudes, are also discussed. © 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 178, 421–440.
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subtropical rainforest vegetation from cosy dell southland plant fossil evidence for late oligocene terrestrial ecosystems
New Zealand Journal of Geology and Geophysics, 2014Co-Authors: John G Conran, Dallas C Mildenhall, Daphne E Lee, Jon K Lindqvist, Claire L Shepherd, Alan G Beu, Jennifer M Bannister, J K SteinAbstract:A fossil flora from the basal Chatton Formation at Cosy Dell farm near Waimumu, Southland, New Zealand comprises wood, seeds, pollen and spores. A Late Oligocene age (25.4–24.4 Ma) determined from macro- and nannofossils constrains the beginning of marine transgression in this area. The palynoflora comprises more than 100 taxa, in addition to a few spores recycled from underlying Jurassic Murihiku basement. At least 16 ferns are present. Conifers include Araucariaceae and Podocarpaceae (Dacrydium, Dacrycarpus, Lagarostrobos, Microcachrys, Phyllocladus and Podocarpus). The angiosperm palynoflora comprises monocots including Arecaceae, Asparagaceae, Asteliaceae, Pandanaceae and Typhaceae and numerous dicots including Casuarinaceae, Cunoniaceae, Euphorbiaceae, Loranthaceae, Malvaceae, Myrtaceae, Nothofagaceae, Proteaceae and Strasburgeriaceae. The drift flora includes wood and seeds including the tropical legume Entada. Elongate limpets and mangrove snails provide indirect evidence for seagrasses and mangrov...
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research article subtropical rainforest vegetation from cosy dell southland plant fossil evidence for late oligocene terrestrial ecosystems
2014Co-Authors: John G Conran, Dallas C Mildenhall, Jon K Lindqvist, Claire L Shepherd, Alan G Beu, Jennifer M BannisterAbstract:A fossil flora from the basal Chatton Formation at Cosy Dell farm near Waimumu, Southland, New Zealand comprises wood, seeds, pollen and spores. A Late Oligocene age (25.4–24.4 Ma) determined from macro- and nannofossils constrains the beginning of marine transgression in this area. The palynoflora comprises more than 100 taxa, in addition to a few spores recycled from underlying Jurassic Murihiku basement. At least 16 ferns are present. Conifers include Araucariaceae and Podocarpaceae (Dacrydium, Dacrycarpus, Lagarostrobos, Microcachrys, Phyllocladus and Podocarpus). The angiosperm palynoflora comprises monocots including Arecaceae, Asparagaceae, Asteliaceae, Pandanaceae and Typhaceae and numerous dicots including Casuarinaceae, Cunoniaceae, Euphorbiaceae, Loranthaceae, Malvaceae, Myrtaceae, Nothofagaceae, Proteaceae and Strasburgeriaceae. The drift flora includes wood and seeds including the tropical legume Entada. Elongate limpets and mangrove snails provide indirect evidence for seagrasses and mangroves. The predominance of rainforest tree pollen and fern spores suggests a regional subtropical coastal forest and high rainfall.
J K Stein - One of the best experts on this subject based on the ideXlab platform.
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subtropical rainforest vegetation from cosy dell southland plant fossil evidence for late oligocene terrestrial ecosystems
New Zealand Journal of Geology and Geophysics, 2014Co-Authors: John G Conran, Dallas C Mildenhall, Daphne E Lee, Jon K Lindqvist, Claire L Shepherd, Alan G Beu, Jennifer M Bannister, J K SteinAbstract:A fossil flora from the basal Chatton Formation at Cosy Dell farm near Waimumu, Southland, New Zealand comprises wood, seeds, pollen and spores. A Late Oligocene age (25.4–24.4 Ma) determined from macro- and nannofossils constrains the beginning of marine transgression in this area. The palynoflora comprises more than 100 taxa, in addition to a few spores recycled from underlying Jurassic Murihiku basement. At least 16 ferns are present. Conifers include Araucariaceae and Podocarpaceae (Dacrydium, Dacrycarpus, Lagarostrobos, Microcachrys, Phyllocladus and Podocarpus). The angiosperm palynoflora comprises monocots including Arecaceae, Asparagaceae, Asteliaceae, Pandanaceae and Typhaceae and numerous dicots including Casuarinaceae, Cunoniaceae, Euphorbiaceae, Loranthaceae, Malvaceae, Myrtaceae, Nothofagaceae, Proteaceae and Strasburgeriaceae. The drift flora includes wood and seeds including the tropical legume Entada. Elongate limpets and mangrove snails provide indirect evidence for seagrasses and mangrov...
Dallas C Mildenhall - One of the best experts on this subject based on the ideXlab platform.
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the monocot fossil pollen record of new zealand and its implications for palaeoclimates and environments
Botanical Journal of the Linnean Society, 2015Co-Authors: John G Conran, Dallas C Mildenhall, Ian J Raine, Elizabeth M Kennedy, Daphne E LeeAbstract:The record of fossil monocotyledonous pollen in New Zealand is summarized and discussed in terms of age and palaeoecological implications. The fossil monocot pollen record covers reports of taxa variously ranging from the Palaeogene to the present, with diverse groups represented, including Alstroemeriaceae: Luzuriagoideae (Luzuriaga), Amaryllidaceae (aff. Hymenocallis?), Arecaceae (including Nypa and aff. Metroxylon), Asparagaceae: Lomandroideae (Arthropodium, Cordyline), Asteliaceae (Astelia and Collospermum), Cyperaceae, Anarthriaceae (including Hopkinsiaceae and Lyginiaceae) or Flagellariaceae?, Orchidaceae, Pandanaceae, Poaceae, Restionaceae (aff. Empodisma), Ripogonaceae (Ripogonum), Typhaceae (Typha and Sparganium) and Asphodelaceae (= Xanthorrhoeaceae): Hemerocallidoideae (Dianella and Phormium). There are also monosulcate and reticulate lilioid and echinate and gemmate arecoid palynomorphs known from the Late Cretaceous. The possible biogeographical and palaeoecological implications of these records, especially for tropical or subtropical taxa occurring at mid to high southern latitudes, are also discussed. © 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 178, 421–440.
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subtropical rainforest vegetation from cosy dell southland plant fossil evidence for late oligocene terrestrial ecosystems
New Zealand Journal of Geology and Geophysics, 2014Co-Authors: John G Conran, Dallas C Mildenhall, Daphne E Lee, Jon K Lindqvist, Claire L Shepherd, Alan G Beu, Jennifer M Bannister, J K SteinAbstract:A fossil flora from the basal Chatton Formation at Cosy Dell farm near Waimumu, Southland, New Zealand comprises wood, seeds, pollen and spores. A Late Oligocene age (25.4–24.4 Ma) determined from macro- and nannofossils constrains the beginning of marine transgression in this area. The palynoflora comprises more than 100 taxa, in addition to a few spores recycled from underlying Jurassic Murihiku basement. At least 16 ferns are present. Conifers include Araucariaceae and Podocarpaceae (Dacrydium, Dacrycarpus, Lagarostrobos, Microcachrys, Phyllocladus and Podocarpus). The angiosperm palynoflora comprises monocots including Arecaceae, Asparagaceae, Asteliaceae, Pandanaceae and Typhaceae and numerous dicots including Casuarinaceae, Cunoniaceae, Euphorbiaceae, Loranthaceae, Malvaceae, Myrtaceae, Nothofagaceae, Proteaceae and Strasburgeriaceae. The drift flora includes wood and seeds including the tropical legume Entada. Elongate limpets and mangrove snails provide indirect evidence for seagrasses and mangrov...
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research article subtropical rainforest vegetation from cosy dell southland plant fossil evidence for late oligocene terrestrial ecosystems
2014Co-Authors: John G Conran, Dallas C Mildenhall, Jon K Lindqvist, Claire L Shepherd, Alan G Beu, Jennifer M BannisterAbstract:A fossil flora from the basal Chatton Formation at Cosy Dell farm near Waimumu, Southland, New Zealand comprises wood, seeds, pollen and spores. A Late Oligocene age (25.4–24.4 Ma) determined from macro- and nannofossils constrains the beginning of marine transgression in this area. The palynoflora comprises more than 100 taxa, in addition to a few spores recycled from underlying Jurassic Murihiku basement. At least 16 ferns are present. Conifers include Araucariaceae and Podocarpaceae (Dacrydium, Dacrycarpus, Lagarostrobos, Microcachrys, Phyllocladus and Podocarpus). The angiosperm palynoflora comprises monocots including Arecaceae, Asparagaceae, Asteliaceae, Pandanaceae and Typhaceae and numerous dicots including Casuarinaceae, Cunoniaceae, Euphorbiaceae, Loranthaceae, Malvaceae, Myrtaceae, Nothofagaceae, Proteaceae and Strasburgeriaceae. The drift flora includes wood and seeds including the tropical legume Entada. Elongate limpets and mangrove snails provide indirect evidence for seagrasses and mangroves. The predominance of rainforest tree pollen and fern spores suggests a regional subtropical coastal forest and high rainfall.
Chunrui Lin - One of the best experts on this subject based on the ideXlab platform.
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aspidistra latistyla Asparagaceae a new species from china
Phytotaxa, 2021Co-Authors: Shouzhou Zhang, Chunrui Lin, Yan LiuAbstract:Aspidistra latistyla, (Asparagaceae), a new Chinese species, is described and illustrated here. This new species is similar to A. longipetala in the shape of the flowers, but can be clearly distinguished by its taller leaves, the perianth lobes shorter than tube, stamens inserted in the upper-middle of perianth tube and the stigma cylindrical, 8–10 mm long, 7–9 mm in diameter.
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aspidistra luochengensis Asparagaceae a new species from guangxi china
Phytotaxa, 2019Co-Authors: Bo Pan, Ying Qin, Chunrui LinAbstract:Aspidistra louchengensis (Asparagaceae) is described and illustrated from limestone areas in northern Guangxi Zhuang Autonomous Region, China. It is similar to A. obconica C.R.Lin & Yan Liu with the perianth obconical campanulate, stamens inserted at upper third of perianth tube, but it can be clearly distinguished by leaf blade narrower and longer, perigone lobes longer (6–8 mm), adaxial densely papillose and scabrous, apex acuminate and outcurved, and stigma upper surface slightly concave. This new species is only known from Luocheng Mulao Autonomous County in Guangxi, China.
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aspidistra leucographa sp nov Asparagaceae from guizhou china
Phytotaxa, 2017Co-Authors: Chunyu Zou, Bo Pan, Mengqi Han, Chunrui LinAbstract:Aspidistra Ker Gawler (1822: 628) comprises more than 160 species in subtropical SE-Asia, mainly distributed in southern China and adjacent northern Vietnam (Li 2004, Tillich 2005, 2014). In recent years, many new species have been discovered and described from Guizhou Province, southwestern China (He et al. 2011a, 2011b, 2013, Liu et al. 2015, Sun et al. 2014, Xu et al. 2010, 2015a, 2015b). In May 2013, when investigating limestone plants in Guizhou province, we discovered an unusual Aspidistra Ker Gawl. at Dadaihe Karst Tiankeng (Tangbian, Pingtang county), showing dark purplish red flowers, but the pistil was wilted because the plant was at late stage of anthesis. Therefore plants were collected and transferred to the Guilin Botanical Garden, where they flowered next spring. In November 2015, the second author (Meng-Qi Han) collected again the same Aspidistra pecies at Anjiadong Karst Tiankeng (Tangbian). After consulting herbarium specimens and relevant literature on Aspidistra (Huang et al. 2015, Lin et al. 2015, Liang et al. 2016, Ly & Tillich 2016, Pan et al. 2016, Vislobokov et al. 2016), it turned out that the plant represents a new species, which we describe below.
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aspidistra erythrocephala sp nov Asparagaceae from guangxi china
Phytotaxa, 2016Co-Authors: Yongyan Liang, Yusong Huang, Jing Liu, Chunrui LinAbstract:Aspidistra Ker-Gawler (1822: 628) is native to eastern and southeastern Asia, particularly China and Vietnam. Only a few species are known from Thailand, Laos, Malaysia, Japan, and India. Since in 1822, when A. lurida Ker-Gawler (1822: 628) was described from a cultivated plant, the species number increased very slowly to 11 in 1980. Since then, the species number began to grow rapidly, especially in China and Vietnam, currently increasing the total number of species to over 150. In recent years, after field surveys in southwest Guangxi (southern China), several new species of Aspidistra have been discovered and described (Lin & Liu 2011, Lin et al . 2012, 2013, 2015, Meng et al . 2014, Huang et al . 2015).
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aspidistra yizhouensis sp nov Asparagaceae from limestone areas in guangxi china
Phytotaxa, 2016Co-Authors: Bo Pan, Chunrui LinAbstract:A new species Aspidistra yizhouensis (Asparagaceae) is described and illustrated from limestone areas in central Guangxi, China. It is similar to Aspidistra fungilliformis , but has perianth urceolate, lobes yellow adaxially, pistil obconical, stigma upper surface purplish red and with 3 yellow, radial, bifurcate lines.
Leonid V Averyanov - One of the best experts on this subject based on the ideXlab platform.
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Rohdea dangii (Asparagaceae), a new species from northwestern Vietnam
Phytotaxa, 2021Co-Authors: Khang Sinh Nguyen, Leonid V Averyanov, Noriyuki Tanaka, Phuong Hanh Nguyen, Duc Binh TranAbstract:Rohdea dangii, a new species from limestone areas of Son La and Dien Bien Provinces in northwestern Vietnam, is described and illustrated. It is apparently most closely related to R. tonkinensis described from northern Vietnam, for these two species share an elongate aerial stem with no cataphylls (except for those at the base of the peduncle), narrowly elliptic leaf blades and filaments conspicuously incrassate in the lower decurrent portions. It is, however, readily distinguishable mainly by the longer, thicker rhizome, non-sheathing amplexicaule leaf blades, half-terete peduncle, much shorter bracts mostly not exceeding the flowers, and crateriform perigone tube. The taxonomic relationships of the new species to R. wattii and two other species with an aerial stem were also briefly discussed.
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aspidistra babensis Asparagaceae a new species from northern vietnam
Annales Botanici Fennici, 2020Co-Authors: Khang Sinh Nguyen, Leonid V Averyanov, H J Tillich, Tien Hiep NguyenAbstract:Aspidistra babensis K.S. Nguyen, Aver. & Tillich, a new species of Asparagaceae from limestone mountains of Bac Kan Province in northern Vietnam, is described and illustrated. Morphologically, it is close to A. stricta, sharing a perigone that is upright and split almost to base, and with fleshy perigone lobes. Aspidistra babensis however differs from A. stricta by leaf venation with numerous secondary veins, adaxial perianth lobe which is thickest near base and lacking a prominent median keel at lower half, and a convex to almost hemispherical stigma with a verrucose surface. Sequences of chloroplast DNA (trnL-trnF and rbcL) are provided for A. babensis.
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aspidistra bella Asparagaceae a new species from northern vietnam
Phytotaxa, 2018Co-Authors: Leonid V Averyanov, Khang Sinh Nguyen, H J Tillich, Tatiana V MaisakAbstract:This paper continues the publication of newly obtained results of a successive taxonomic investigation of the genus Aspidistra Ker Gawler (1822: 628) in Vietnam summarized in a series of recent publications (Averyanov & Tillich 2016, Averyanov et al. 2016, 2017, 2018, Vislobokov 2016, Vislobokov et al. 2016, 2017, Nguyen 2017, Nuraliev et al. 2017). A new recently discovered species is described and illustrated below.
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Rohdea harderi (Asparagaceae), a new species from northern Vietnam
Kew Bulletin, 2018Co-Authors: Noriyuki Tanaka, Leonid V Averyanov, Dylan P. Hannon, Daniel K. Harder, Sean C. LahmeyerAbstract:Rohdea harderi N. Tanaka, D. P. Hannon & Aver., a new species from northern Vietnam, is described and illustrated. It is most closely allied to R. verruculosa from SW China, but differs mainly by the narrower annular appendage at the throat of the perianth tube, explanate, subacute, crenulate, externally smooth perianth segments, smaller stigma and obovoid ovary. Its affinity is briefly discussed on the basis of floral traits. A key to the species known from Vietnam is also provided.
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tupistra cardinalis Asparagaceae a new species from limestone areas in northern vietnam
Phytotaxa, 2018Co-Authors: Leonid V Averyanov, Noriyuki Tanaka, Khang Sinh Nguyen, Tien Hiep Nguyen, Hoang Thanh Son, Tatiana V Maisak, Chingi PengAbstract:Tupistra Ker Gawler (1814: 1655), which was later recircumscribed by Tanaka (2003a, 2010a), belongs to Nolinoideae of Asparagaceae (APG 2009, Chase et al . 2009). It comprises about 30 species (Tanaka 2010a, Averyanov et al . 2017, Govaerts 2017, Nguyen et al . 2017, Roy et al . 2017, Tanaka et al . 2017) distributed widely over subtropical to tropical Asia, covering Bangladesh, Bhutan, China, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Thailand, and Vietnam (Tanaka 2010a, Averyanov & Tanaka 2012, Hu et al . 2013, Vislobokov et al . 2014, Averyanov et al . 2015, 2016, 2017, Nguyen et al . 2017, Roy et al . 2017).
