四川产紫堇属四新种

Plant Diversity ›› 1989, Vol. 11 ›› Issue (03): 1-3.

• 研究论文 •

四川产紫堇属四新种

吴征镒苏志云

中国科学院昆明植物研究所，昆明650204

出版日期:1989-06-25 发布日期:1989-06-25

The Chromosome Number of Psammosilene tunicoides Endemic to China

PAN YueZhi，YANG ZhiYun，GONG Xun

Kunming Institute of Botany，Chinese Academy of Sciences,Kunming 650204,China;School of Life Science,Zhongshan University,Guangzhou 510275,China

Online:1989-06-25 Published:1989-06-25

摘要/Abstract

摘要： Af finis C. hemsleyanae Franch. et Prain, sed caulibus scapiformibus, flori-lus flavis, majoribus, petalo antico basi saccato facile differt.
Herba caespitosa circ. 30 cm longa. Rhizoma circ. 5-10 mm longum, 10 mm crassum, radicibus fibrosis, numerosis, fasciculatis. Caulis 1 usque numerosus, scapiformis, simplex, efoliolatus, interdum basi unifoliatus. Folia basalia numerosa, circ. 20 cm longa, petiolis circ. 15 cm longis basi marginato-expansis, plus minu-sve carnosulis, in sicco purpureo-brunneis, laminis circ. 5 cm longis 5-6 cm latis viridibus, subtus glaucescentibus, biternatis, pinnis brevipetiolulatis, pinnulis sessilibus vel subsessilibus, 2.5-3.5 cm longis, 2 - 3 cm latis bitripartitis, segmentis lanccolatis, saepe trilobatis.

关键词: 紫堇属, 四川

Abstract: In this paper,Psammosilene tunicoides,an endemic species to China,was cytologically studied for the first time.The morphology of the nuclei at resting stage was categorized to be simple chromocentre type.The morphology of mitoticprophase chromosomes was categorized to be the interstitial type.28 chromosomes were observed at the mitotic metaphase,and 14 bivalent chromosomes were observed at diakinesis.So,the basic chromosome number was confirmed to be x=14.Psammosilene tunicoides is different from Silene rubicunda in the basic chromosome number and the morphology of the nuclei at resting stage and mitoticprophase chromosomes,because Silene rubicund has the basic chromosome number of x=10 and 12,and its nuclei at resting stage and mitoticprophase chromosomes is sparsely diffuse type and continuous type respectivrly.

Key words: Psammosilene tunicoides

吴征镒苏志云. 四川产紫堇属四新种[J]. Plant Diversity, 1989, 11(03): 1-3.

PAN YueZhi，YANG ZhiYun，GONG Xun. The Chromosome Number of Psammosilene tunicoides Endemic to China[J]. Plant Diversity, 1989, 11(03): 1-3.

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四川产紫堇属四新种

The Chromosome Number of Psammosilene tunicoides Endemic to China

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