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中国兰科玉凤花属一新记录种——反曲玉凤花

A newly recorded species of Habenaria (Orchidaceae) from China: Habenaria reflexa Blume

  • 摘要: 本文报道了中国兰科玉凤花属(Habenaria)一新记录种——反曲玉凤花(H. reflexa Blume)。该种生长于海拔约1 800 m的林下,其侧萼片为极斜的宽卵形,基部最宽,花瓣不裂,近三角形,唇瓣三深裂,裂片明显反曲,距基部上翘,近中部向下呈180°弯曲,末端突然膨大,长度短于子房,综合形态性状与近缘种存在区别。本文提供了反曲玉凤花详细的形态描述、彩色照片图版及与近缘种的形态比较信息、模式标本照片彩色图版。本种在中国的发现,不仅补充了玉凤花属在我国的物种多样性记录,也为东亚植物区系研究提供了重要基础数据。

     

    Abstract: A newly recorded species of Habenaria (Orchidaceae), Habenaria reflexa Blume, is documented from China for the first time. This species was observed in forest understory habitats at ca. 1 800 m elevation. It is morphologically characterized by strongly oblique, broadly ovate lateral sepals widest at base; unlobed, nearly triangular petals; deeply three-lobed lip with all lobes distinctly recurved; spur curved upward from base, bent downward by 180° near middle, abruptly expanding distally, and shorter than ovary. These combined traits clearly differentiate it from closely related taxa. This paper provides a detailed morphological description, high-resolution color plates, comparative diagnostic features with related species, and an image of the type specimen. The discovery of this species in China expands the known geographic range of H. reflexa and contributes critical data to the assessment of orchid diversity in China and the floristic composition of East Asia.

     

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