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Issue: Vol. 270 No. 1: 12 August 2016
Type: Article
Published: 2016-08-12
DOI: 10.11646/phytotaxa.270.1.7
Page range: 63–68
Abstract views: 33
PDF downloaded: 1

Aspidistra ronganensis (Asparagaceae), a new species from limestone areas in Guangxi, China

Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, 541006, Guilin, China
Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, 541006, Guilin, China
Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, 541006, Guilin, China
Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, 541006, Guilin, China
chromosome number Guangxi Zhuangzu Autonomous Region karyotype taxonomy Monocots China

Abstract

A new species, Aspidistra ronganensis, discovered in Guangxi Zhuangzu Autonomous Region of southern China, is described and illustrated. It is similar to A. retusa in the shape of the flower, but differs by the perigone tubular (vs. campanulate), 20–25 × 6–8 mm, lobes triangular-lanceolate (vs. deltoid-ovate), apex gradually acuminate (vs. subobtuse), with spurlike basal protuberances (vs. withoutr keels), anthers lineate, ca. 5 × 0. 5–1 mm (vs. ovate, 1.8 ×1.8 mm). The chromosome number of the new species was determined to be 2n = 38 + 1B, and the karyotype was formulated as 2n = 24m + 2sm + 12st + 1B. One B chromosome was observed in the chromosome complement. The average length of chromosome complement is 4.22 μm, the karyotype asymmetry indices CVCL and MCA are 63.24 and 26.20, respectively.