A threatened new species of Dioscorea from KwaZulu-Natal, South Africa, Dioscorea hurteri (Dioscoreaceae)

被引：0

作者：

Hills R. ^{[1
]}

Muthama Muasya A. ^{[2
]}

Maurin O. ^{[3
]}

Wilkin P. ^{[3
]}

机构：

[1] 5 Ashentree Cottages, Preston Hill, Wingham, Canterbury, Kent

[2] Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch

[3] Royal Botanic Gardens, Kew, Richmond, Surrey

来源：

Kew Bulletin | 2018年 / 73卷 / 1期

关键词：

Conservation; distribution; morphology; vulnerable; yam;

D O I：

10.1007/s12225-018-9742-9

中图分类号：

学科分类号：

摘要：

Morphological character data are used to show that a distinct morphotype of Dioscorea L. from KwaZulu-Natal in South Africa is an undescribed species, related to the D. buchananii Benth. species complex but differing in its inflorescence and floral morphology from all other taxa. It is described as Dioscorea hurteri R. Hills & Wilkin, illustrated and a distribution map and ecological information provided. It is known from four localities, just two of which may be protected, within a heavily developed region of South Africa and with an extent of occurrence (EOO) of 9,872 km2. Thus, its provisional IUCN conservation status is vulnerable (VU). © 2018, The Author(s).

引用

共 10 条

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[2] Hills R., How Does Evolutionary History Affect Conservation Assessments of South African Dioscorea (Dioscoreaceae)?, (2016)
[3] Hills R., Et al., Incorporating Evolutionary History into Conservation Assessments of a Highly Threatened Group of Species
[4] IUCN Red List Categories and Criteria: Version 3.1, (2001)
[5] Guidelines for Using the IUCN Red List Categories and Criteria, (2014)
[6] Maurin O., Muasya A.M., Catalan P., Shongwe E.Z., Viruel, Wilkin P., van der Bank M., Diversification into novel habitats in the Africa clade of Dioscorea (Dioscoreaceae): erect habit and elephant’s foot tubers, Bio Med Centr. Evol. Biol., 16, (2016)
[7] Quantum GIS Geographic Information System, (2017)
[8] Wilkin P., Yams of South-Central Africa, Kew Bull., 56, pp. 361-404, (2001)
[9] Wilkin P., Dioscoreaceae, Flora Zambesiaca, 12, 2, pp. 109-140, (2009)
[10] Wilkin P., Muasya A.M., Clarifying the Dioscorea buchananii Benth. Species complex: A new subspecies for South Africa that may already be extinct, Phytokeys, 48, pp. 51-72, (2015)

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