姜科黄姜花复合体的形态特征及其分类群界定

Morphological Characteristics of Hedychium flavum Complex (Zingiberaceae) and Definition of Their Taxons

摘要:

为进行黄姜花复合体（Hedychium flavum Complex）的种类鉴定，对采自贵州、重庆、四川、云南、广西等地的标本和移栽后的植株进行形态观测和性状分析。结果表明，小花香气、叶舌、苞片、唇瓣、侧生退化雄蕊和果实等的形态特征是黄姜花复合体种类鉴定的重要指标。据此，把H.panzhuum Z.Y.Zhu归入H.flavum Roxb.中；把H.emeiense Z.Y.Zhu归入H.chrysoleucum Hook.中，而不是归入H.flavescens。该复合体包含H.flavum Roxb.、H.chrysoleucum Hook.、H.bipartitum G.Z.Li及待定种Hedychium sp.，共4种。

Abstract:

In order to species identify of Hedychium flavum complex, the morphological characteristics of specimen collected from Guizhou, Chongqing, Sichuan, Yunnan, Guangxi, and transplanted plants were observated. The results showed that the characteristics of floret aroma, ligule, bracts, labellum, lateral vestigial stamens and fruits were important indexes for species identification of H. flavum complexes. Then H. panzhuum Z. Y. Zhu was classified into H. flavum Roxb., and H. emeiense Z. Y. Zhu into H. chrysoleucum Hook. rather than H. flavescens. It was suggested that there were 4 species in H. flavum complex, including H. flavum Roxb., H. bipartitum G. Z. Li, H. chrysoleucum Hook. and undescribed species Hedychium sp.