Two new species of Impatiens (Balsaminaceae) from Putao, Kachin State, northern Myanmar
Two new species of Impatiens (Balsaminaceae) from Putao, Kachin State, northern Myanmar
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DOI：
10.11646/phytotaxa.321.1.4
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发表时间：
2017-09-12
期刊：
影响因子：
1.1
通讯作者：
Tan, Yun-Hong
中科院分区：
文献类型：
--
作者：
Yang, Bin;Zhou, Shi-Shun;Tan, Yun-Hong
本文描述了缅甸克钦邦普桃凤仙花属（凤仙花科）的两个新种。凤仙花的叶片呈狭椭圆形或狭倒披针形，叶柄长可达3毫米，下侧合生花瓣长25-40毫米。葡萄凤仙花与其近缘种黄凤仙花的不同之处在于花淡绿色黄色，侧萼片卵形至椭圆形，合生花瓣的下裂片半月形，合生花瓣的上裂片半圆形，背面花瓣卵形至近圆形，有一个狭窄的不明显的背峰。核糖体和质体基因序列的分子系统发育分析证实，这两个新物种与以前记录的物种不同。
Two new species of the genus Impatiens (Balsaminaceae) from Putao, Kachin State, Myanmar, are here described and illustrated. Impatiens casseabriae can be easily recognized by its narrowly elliptic to narrowly oblanceolate leaves, petioles up to 3 mm long, lower lateral united petals 25-40 mm long. Impatiens putaoensis differs from its closely related species I. xanthina in having light greenish yellow flowers, lateral sepals ovate to elliptic, lower lobe of united petals semilunar, upper lobe of united petals dolabrate, dorsal petal ovate to nearly orbicular, with a narrow inconspicuous dorsal crest. Molecular phylogenetic analyses of sequences from both nuclear ribosomal and plastidgenes confirm that the two new species are distinct from previously recorded species.