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Issue: Vol. 489 No. 3: 9 March 2021
Type: Article
Published: 2021-03-09
DOI: 10.11646/phytotaxa.489.3.3
Page range: 263–274
Abstract views: 18
PDF downloaded: 1

Spatholobus discolor, a new synonym of Craspedolobium unijugum (Fabaceae)

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, P. R. China
South China Limestone Plants Research Centre, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, P. R. China
Key Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming 650224, P. R. China Ningbo Botanical Garden Herbarium, Ningbo 315201, P. R. China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, P. R. China
Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, P. R. China
Fabaceae Millettieae Vietnam Southeast Asia lectotypification taxonomy Eudicots

Abstract

Craspedolobium schochii Harms was described in 1921 and has thin woody, flat, dehiscent pods with a narrow wing on the upper suture, which are quite different from those of other genera within the same tribe Millettieae (Fabaeceae), but its flowering materials from Laos and Thailand were described respectively as Millettia unijuga Gagnep. in 1913 and as Pueraria rigens Craib in 1927. Due to the priority of the Shenzhen Code, its correct name was accepted as Craspedolobium unijugum (Gagnep.) Z. Wei & Pedley as recently as 2010. The results of critical examination of specimens, literature and living plants in the wild showed that Spatholobus discolor C. F. Wei, a species described on the basis of one flowering collection from China, is also conspecific with C. unijugum. We therefore reduce S. discolor to the synonymy of C. unijugum herein. Additionally, we designated the second-step lectotype of the name C. schochii, and further found that Craspedolobium is a new genus record for the flora of Vietnam.