CYTOTAXONOMIC STUDY OF FERNS OF YUNNAN, SOUTHWESTERN CHINA

被引：37
作者：
KATO, M
NAKATO, N
CHENG, X
IWATSUKI, K
机构：
[1] UNIV TOKYO,FAC SCI,BOT GARDENS,TOKYO 112,JAPAN
[2] SHINJUKU HIGH SCH,SENDAGAYA,TOKYO 151,JAPAN
[3] ACAD SINICA,KUNMING INST BOT,KUNMING 650204,YUNNAN,PEOPLES R CHINA
来源：
BOTANICAL MAGAZINE-TOKYO | 1992年 / 105卷 / 1077期
关键词：
BIOGEOGRAPHY OF SINO-JAPANESE FERNS; CHROMOSOME NUMBER; CYTOTAXONOMY; REPRODUCTIVE MODE; YUNNAN FERNS;
D O I：
10.1007/BF02489407
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A cytotaxonomic study was made of 90 fem species of Yunnan, southwestern China, based on collections from northwestern, central, and southwestern Yunnan and a few Cheng's collections. The results verified most of the formerly reported basic chromosome numbers of Chinese genera, and recorded for the first time the basic numbers of Gymnogrammitis and Sorolepidium and Chinese members of several other genera. Cytotaxonomy of some problematical genera was discussed. Biogeographical relationships between Japanese, Chinese, and Himalayan ferns were compared with special reference to local cyto-reproductive variations in Coniogramme, Deparia, Onychium, and Pteris cretica. The present evidence indicates that most triploid species examined are agamosporous, as general in filicalean ferns, and also suggests the sexual 32-spored sporogenesis in Hypodematium crenatum and Sorolepidium graciale as in Lindsaeaceae.
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页码：105 / 124
页数：20
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