Chromosome Observations of Eight Species Endemic to China

Abstract

Abstract: A report of chromosome numbers for eight species endemic to China is made in the paper, including first counts for 4 genera and 4 species and first karyotypic analyses of two species. Sinojohnstonia chekiangensis (Migo) W. T. Wang (Boraginaceae) 2n=24*; Coptis chinenis Franch (Ranunculaceae) 2n=18**; Dichocarpum dalzielii (Drumm. et Hutch.) W. T. Wang et Hsiao (Ranunculaceae) 2n=24*; Eomecon chionantha Hance (Papaveraceae) 2n=18; Camptotheca acuminata Dcne. (Nyssaceae) 2n=44; Calycanthus chinensis Cheng et S. Y. Chang (Calycanthaceae) 2n=22**; Eucommia ulmoides Oliv. (Eucommiaceae) n=17; Pinellia pedatisecta Schott (Araceae) 2n=26; The previous reports of chromosome numbers of the same groups are compared with our own (See Table 1). The vouchers for the present study are preserved in the Herbarium of Futan University.

Key words: chromosome number, karyotype, Sinojohnstonia chekiangensis, Coptis chinensis, Dichocarpum dalzielii, Eomecon chionantha, Camptotheca acuminata, Calycanthus chinensis, Eucommia ulmoides, Pinellia pedatisecta

Li Lin-Chu, Hsu Ping-Sheng. Chromosome Observations of Eight Species Endemic to China[J]. J Syst Evol, 1986, 24(2): 157-160.

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Chromosome Observations of Eight Species Endemic to China

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