Allium jichouense (Amaryllidaceae), a new species of the section Sikkimensia from southwestern China.
Allium jichouense (Amaryllidaceae), a new species of the section Sikkimensia from southwestern China.
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DOI：
10.11646/phytotaxa.575.2.1
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发表时间：
2022-01-01
期刊：
影响因子：
1.1
通讯作者：
Ma, Xiang-Guang
中科院分区：
文献类型：
--
作者：
Huang, De-Qing;Sun, Hang;Ma, Xiang-Guang
本文报道了一新种——四川蒜草。它只生长在海拔4300 - 4500米的高山碎石或砾石斜坡上。形态上，它在球茎和花的特征上类似于锡金草，但在镰形或卷曲的叶子、通常是红紫色的色素、花叶和花萼上有很大的不同。系统发育分析证实该新种属于锡金蠓科，并嵌套于锡金蠓的不同居群中。讨论了鸡笼拟南棉铃虫在锡金拟南棉铃虫中嵌入系统发育关系的可能情形。给出了新种的详细形态描述、图解和习性特征。
Allium jichouense from Sichuan Province, southwestern China is described as a new species. It grows exclusively on alpine screes or gravelly slopes at higher altitudes of 4,300-4,500 m. Morphologically, it resembles A. sikkimense in bulb and floral features, but differs significantly in its falcate or curled, commonly reddish-purple pigmented leaves, scapes and spathe-valves. Phylogenetic analyses confirm that the new species belongs to A. sect. Sikkimensia and is nested within different populations of A. sikkimense. The possible scenarios are discussed for the embedded phylogenetic relationship of A. jichouense within A. sikkimense. A detailed morphological description, illustrations and habit features of the new species are given.