生物
毛茛科
植物
顶点(几何体)
瘦果
花被
习惯
真双子叶植物
雄蕊
分类学(生物学)
心理学
心理治疗师
花粉
作者
You-Pai Zeng,QIONG YUAN,Qin‐Er Yang
出处
期刊:Phytotaxa
[Magnolia Press]
日期:2021-05-24
卷期号:502 (2): 133-148
被引量:1
标识
DOI:10.11646/phytotaxa.502.2.2
摘要
Thalictrum minshanicum and T. pseudoramosum (Ranunculaceae), two new species from southern Gansu and northwestern Sichuan, China, are illustrated and described. Thalictrum minshanicum is somewhat similar to T. brevisericeum in habit and in having puberulent stem and leaves, but differs by having conspicuously 3-lobate (vs. slightly 3-lobate) leaflets, glabrous (vs. puberulent abaxially) sepals, longer (ca. 7 mm vs. ca. 4 mm) and clavate (vs. oblanceolate-linear) filaments, conspicuous (vs. inconspicuous) stigmas, and persistent styles slightly recurved (vs. circinate) at apex. Thalictrum pseudoramosum is closely similar to T. ramosum in habit and in having slightly recurved styles at apex, but differs by having subcoriaceous (vs. herbaceous) leaflets, more numerous stamens (40‒60 vs. 16‒24), and elliptic-fusiform (vs. lanceolate-fusiform) achenes.
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