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Issue: Vol. 275 No. 1: 16 September 2016
Type: Article
Published: 2016-09-16
DOI: 10.11646/phytotaxa.275.1.7
Page range: 62–68
Abstract views: 19
PDF downloaded: 16

Impatiens occultans (Balsaminaceae), a newly recorded species from Xizang, China, and its phylogenetic position

College of Life Sciences, Shanxi Normal University, Linfen 041004, China State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China
College of Life Sciences, Beijing Normal University, Beijing 100875, China
College of Life Sciences, Beijing Normal University, Beijing 100875, China
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China
College of Life Sciences, Shanxi Normal University, Linfen 041004, China
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China
Balsaminaceae China Impatiens morphology phylogeny Eudicots

Abstract

Impatiens occultans Hook. f. (Balsaminaceae) is newly recorded for China, from Gyirong County, Xizang Province. A morphological description and notes on its distribution and ecology are provided. A phylogenetic analysis yields a placement of the species that it is sister to I. tuberculata (sect. Racemosae) with which it agrees in having a navicular lower sepal without a spur and 4-colpate pollen grains, but differs in elliptic leaves, 1-flowered racemes, 4 lateral sepals and glabrous capsules.