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Issue: Vol. 607 No. 4: 11 Aug. 2023
Type: Article
Published: 2023-08-11
DOI: 10.11646/phytotaxa.607.4.1
Page range: 228-234
Abstract views: 158
PDF downloaded: 14

Ophiorrhiza pseudonapoensis (Rubiaceae), a new species from Yunnan, southwestern China

College of Forestry; Central South University of Forestry and Technology; Changsha 410004; Hunan; China
College of Forestry; Central South University of Forestry and Technology; Changsha 410004; Hunan; China
College of Forestry; Central South University of Forestry and Technology; Changsha 410004; Hunan; China
College of Life Sciences; Beijing Normal University; Beijing 100875; Beijing; China
College of Forestry; Central South University of Forestry and Technology; Changsha 410004; Hunan; China
Eudicots new taxon Ophiorrhiza taxonomy Yunnan

Abstract

Ophiorrhiza pseudonapoensis, a new species of Rubiaceae is described and illustrated from China. It was previously confused with O. napoensis but differs from the latter in having 5–10 (vs ca. 1) mm long and persistent (vs caducous) stipules, oblanceolate bracts (vs lanceolate-linear), monostylous (vs heterostylous) flowers, and ensiform (vs narrowly triangular) calyx lobes. Ophiorrhiza pseudonapoensis is also morphologically similar to O. macrocarpa, but can be distinguished from the latter by its 5–10 (vs less than 1) mm long stipules, oblanceolate (vs subulate or linear subulate) and 7–20 (vs less than 5) mm long bracts, and (1.2–)1.5–2(–2.5) (vs 0.4–0.6) mm long calyx lobes. The conservation status was assessed as Least Concern (LC) according to the IUCN Red List categories and criteria.

 

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