中国云南象牙参属(姜科)一新种——苍山象牙参  

Roscoea cangshanensis M.H.Luo,X.F.Gao & H.H.Lin,a new species of Zingiberaceae from Yunnan,China

作　　者：罗明华[1] 高信芬[2] 祝正银 林宏辉[1] 

机构地区：[1]生物资源与生态环境教育部重点实验室四川大学生命科学学院,成都610064 [2]中国科学院成都生物研究所,成都610041 [3]四川省中药学校,四川峨眉614201

出　　处：《植物分类学报》2007年第3期296-300,共5页Acta Phytotaxonomica Sinica

基　　金：教育部博士点基金(20040610015);新世纪优秀人才支持计划(NCET-05-0786);四川省杰出青年科技基金(04ZQ026-036)~~

摘　　要：描述了中国云南姜科Zingiberaceae一新种——苍山象牙参Roscoea cangshanensis M.H.Luo,X.F.Gao & H.H.Lin。该种与大理象牙参R.forrestii Cowley在体态上相近,但唇瓣深裂成2裂片,每个裂片再2裂,基部收缩成具白色条纹的柄,叶片较狭窄,(2–)7–24×1.5–2.5cm,叶片基部狭缩成叶柄状而不同。该新种叶片基部狭缩成叶柄状,唇瓣倒卵状楔形,长2.5–3.5cm,宽2.5–3.0cm,基部收缩成具白色条纹的柄,与长柄象牙参R.debilis Gagnep.相似,但苞片非管状,较短,长5–15mm,隐藏于叶鞘内,花冠管较长,10–12.5cm,唇瓣深裂成2裂片,每个裂片再2裂,可与后者明显区别。Roscoea cangshanensis M. H. Luo, X. F. Gao ＆ H. H. Lin, a new species of the Zingiberaceae from Yunnan, China, is described and illustrated. The new species is related to R. forrestii Cowley in habit, but differs in having 2-lobed labellum, each lobe 2-1obulate, base narrowed to a stalk with white lines, and narrower leaf blade, （2-）7-24× 1.5-2.5 cm, with base narrow to petiole-like. The new species is also similar to R. debilis Gagnep. in having leaf base narrow to petiole-like, labellum obovate-cuneate, 2.5-3.5 × 2.5-3.0 cm, with white lines at throat, but differs in having bracts non-tubular, shorter, 5-15 mm long, concealed in leaf sheaths, corolla tubes longer, 10-12.5 cm long, labellum 2-lobed with each lobe further 2-1obulate.

关 键 词：象牙参属 苍山象牙参 姜科 新种 云南 中国 

分 类 号：Q949[生物学—植物学]