Impatiens yunlingensis (Balsaminaceae), a new species from Yunnan, China

By

Yu, Jiang-Hong
Zhang, Wen-Di
Qin, Fei
Xia, Chang-Ying
Qin, Ying
An, Ming-Tai
Gadagkar, Sudhindra R.
Yu, Sheng-Xiang

Type

Article

Date of Publication

2022

Original Publication

PhytoKeys

Volume

212

Pages

13--27

Subjects

Morphology , Phylogeny , pollen grains , seed micromorphology , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.212.89347

 

Abstract

Impatiens yunlingensis S.X. Yu, Chang Y. Xia & J.H. Yu (Balsaminaceae), a species new to science discovered in Yunnan, China, is described and illustrated here, along with its phylogenetic position among other Impatiens species. Morphological, micro-morphological and molecular evidence is presented as an attestation of its novelty. Impatiens yunlingensis is similar to I. delavayi in having coarsely crenate leave margins, bracts in the upper part, ca. 4/5 length of the pedicels, saccate lower sepal with shallowly bifid spur, linear capsules, and elliptic-oblong, tuberculate seeds, but differs from I. delavayi with lateral sepals 4 (vs. 2), lateral united petal basal lobes subtriangular (vs. dolabriform), and seeds’ surface equipped with tubercular ornamentation mostly covered with grain shaped appendages (vs. glabrous and without grain shaped appendages on the top).