Thalictrum minshanicum and T. pseudoramosum (Ranunculaceae), two new species from China
Thalictrum minshanicum and T. pseudoramosum (Ranunculaceae), two new species from China
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中国两新种唐松草和毛茛科唐松草
DOI：
10.11646/phytotaxa.502.2.2
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发表时间：
2021-05
期刊：
影响因子：
1.1
通讯作者：
Yang Qin Er
中科院分区：
文献类型：
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作者：
Zeng You Pai;Yuan Qiong;Yang Qin Er
Thatrumminshanicum和T.描述了甘肃南部和四川西北部毛茛科植物假毛茛属（Ranunculaceae）的两个新种。Thaltrum minshanicum与T. brevisericeum在习性和有被微柔毛的茎和叶，但不同的是有明显的3浅裂（对稍3浅裂）小叶，无毛（对被微柔毛背面）萼片，长（约。7 mm与ca. 4毫米）和棍棒状（对倒披针形线形）花丝，明显（对不明显）柱头，和宿存花柱稍下弯（对拳卷）在先端。Thacrotrum pseudoramosum与T.在习性和在有稍下弯的花柱在先端，但是通过有近革质（对草本）小叶，更多的雄蕊（40 × 60对16 × 24），和椭圆形纺锤形（对披针形纺锤形）瘦果不同。
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.