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重庆阴条岭国家级自然保护区位于重庆市东北部的巫溪县,主要保护对象为森林生态及物种多样性。保护区地处大巴山生物多样性关键地区,物种丰富,有维管植物184科884属2807种[1]。近年来发表了巫溪虾脊兰(Calanthe wuxiensis H. P. Deng & F. Q. Yu)[2]、巫溪铁线莲(Clematis wuxiensis Q. Q. Jiang & H. P. Deng)[3]、鄂西黄堇(Corydalis shennongensis H. Chuang)[4]、离萼杓兰(Cypripedium plectrochilum Franch.)[5]等新种和新记录物种。
2021年4月,调查组在保护区兰英河谷进行维管植物多样性调查时,于路边石灰崖下草丛中发现1种叉柱兰属(Cheirostylis)植物,对居群特征和分布进行详细调查和观察记录,拍摄彩色照片并带回室内进行花部精细解剖,在文献和标本查阅及专家咨询基础上[6-8],鉴定为中华叉柱兰(Cheirostylis chinensis Rolfe),为重庆兰科植物1新记录属,现报道如下。
Cheirostylis Blume, a Newly Recorded Genus of Orchidaceae in Chongqing Municipality
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摘要: 报道了重庆市兰科1个分布新记录属——叉柱兰属(Cheirostylis Blume),及属下新记录种——中华叉柱兰(Cheirostylis chinensis Rolfe),并描述了其形态、生境分布,附有彩色照片。凭证标本藏于重庆自然博物馆(CQNM)。Abstract: In this paper, a new record genus of Orchidaceae in Chongqing, Cheirostylis Blume, and its new record species, Cheirostylis chinensis Rolfe, were reported. The detailed morphological description, habitat distribution were described with color photos. The vouncher specimen was preserved in the Herbarium of Chongqing Museum Natural History (CQNM).served in the Herbarium of Chongqing Museum Natural History (CQNM).
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Key words:
- Chongqing;
- Orchidaceae;
- Newly recorded genus;
- Cheirostylis chinensis
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图 1 重庆巫溪县发现的中华叉柱兰
A. 生境;B. 植株;C. 花序正面观;D. 花序侧面观;E. 茎和叶片;F. 根状茎(A、E&F陈锋摄;B~D周厚林摄)A. Habitat; B. Plant; C. Front view of inflorescence; D. Lateral view of inflorescence; E. Stems and leaves; F. Rhizomes (A, E &F Photographed by Chen Feng; B~D Photographed by Zhou Houlin)
Fig. 1 Cheirostylis chinensis found in Wuxi county, Chongqinging
图 2 中华叉柱兰花部解剖
A. 唇瓣;B. 唇瓣基部胼胝体;C. 花茎苞片;D. 侧萼片;E. 花瓣(两侧)和中萼片(中间);F. 蒴果;G. 合蕊柱;H. 花粉块囊;I. 花粉团(熊驰摄)
Fig. 2 Floral anatomy of Cheirostylis chinensis
A. Labellum: B. Corpus callosum at the base of Labellum; C. Floral bracts; D. Lateral sepals; E. Petal (both sides) and middle sepal (middle); F. Capsule; G. Pistil column; H. Pollinarium sac; I. Pollinarium (Photographed by Xiong Chi)
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