乌鲁木齐乌头, 新疆毛茛科一新种

Aconitum tianschanicum, a new species of Ranunculaceae from Xinjiang, China

关键词:  毛茛科, 乌头属, 新种, 新疆, 中国

Key words:  Ranunculaceae, Aconitum, new species, Xinjiang, China

摘要:

该文描述了发现自中国新疆天山北部的毛茛科乌头属一新种,即乌鲁木齐乌头(Aconitm tianschanicum),此新种与新疆乌头(A. sinchiangense)近缘。两者的区别在于此新种(乌鲁木齐乌头)的茎无毛,不存在基生叶,总状花序轴和花梗被黄色腺毛,萼片背面疏被柔毛、边缘被缘毛,上萼片较宽,花瓣唇在顶端啮蚀状,子房幼时疏被柔毛。

Abstract:

A new species of the genus Aconitum(Ranunculaceae), A. tianschanicum, collected from Xinjiang, China, is described and illustrated. The new species is closely related to A. sinchiangense, but differring from the latter species in its glabrous stem, absence of basal leaves, rachis and pedicels with yellow glandular hairs, wider upper sepals, all the sepals with marginal hairs and sparsely spreading pubescence outside, dilated and erose apex of petal lips, and immature carpels with sparse glandular hairs.