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作 者 ：顾志建 王丽 孙航 武素功

期 刊 ：云南植物研究 1993年 15卷 04期 页码：1-3

关键词：青藏高原；云雾雀儿豆；变色锦鸡儿；藏北锦鸡儿；异叶青兰；西藏泡囊草；洼瓣花；高山韭；垫形蒿；弯茎还阳参；

Keywords:Qinhai-Xizang,

摘 要 ：本文对产于青藏高原地区的11个属12个种植物进行了核型分析。大部份种为首次报道。它们的核型公式和核型不对称性如下：云雾雀儿豆Chesneya nubigena(D．Don）Ali,2n=16=10m+6sm，属2B型；变色锦鸡儿Caragana versicolor Benth.,为2n=18=14m+4sm，2B型；藏北锦鸡儿Caragana gerardiana,2n=18=14m+4sm，2B型；异叶青兰Dracocephalum heterophyllum Benth.,为2n=24；西藏泡囊草Physochlaina praeslta，Kuang & A.M.Lu 2n=42=34m＋8sm，2A型；洼瓣花Lloydia serotina(L.)Reich.,2n=24=6m＋10sm＋8st，3B型；高山韭Allium sikkimense Baker,为2n=24=48=38m+6sm+4st,2A型；垫形篙Artemisia minor Jacq.ex DC.,2n＝18=16m+2sm，2A型；弯茎还阳参Crepis flexuosa(Ledeb.)C．B.Clarke,2n=14=12m＋2sm，2A型；西藏微孔草 Microula tibetica Benth.,2n=24；高原芥Christolea crassifolia Camb.,2n=14=6m＋6sm＋2st，2A型；卷叶黄精Polygonatum cirrhifolium(Wall.)Royal，2n=52=14m＋4sm＋28st＋6t，2B型。

Abstract:In the present paper, the chromosome of 12 species in 11 genera of 7 famillies from the western Qinghai-Xizang Plateau were inverstigated in order to accumulate cytological data of this very species flora. Most of them are the dominant species to establish the plant communities of this region. Their karyotype formulas, and karyotype asymmtry following Stebbins‘s classification, are shown as follows: Chesneya nubigena (D.Don)Ali, 2n=16= 10m+ 6sm, 2Bi Caragana versicolor Benth., 2n=18= 14m+4sm, 2Bi Caragana gerardiana, 2n=18= 14m+4sm,2B;Dracocephalum heterophyllum Benth., 2n=24) Physochlaina praeslta,Kasing & A.M.Lu 2n=42=34m+8sm, 2Ai Lloydia serotina(L.) Reich.,2n=24=6m+ 10sm+8st, 3Bi Allium sikkimense Baker, 2n = 24 = 48 = 38m+6sm+4st,2A; Artemisia minor Jacq. ex DC., 2n=18=16m+2sm, 2A; Crepis flexuosa (Ledeb.)C.B.Clarke, 2n= 14=12m+2sm, 2Ai Microula tibetica Benth., 2n=24; Christolea crassifolia Camb., 2n=14=6m+6sm+2st.

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