A Study on the Genus Cephalotaxus Sieb. et Zucc.

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A Study on the Genus Cephalotaxus Sieb. et Zucc.

Fu Li-Kuo

(Institute of Botany, Academia Sinica Beijing)

Received:1900-01-01 Revised:1900-01-01 Online:1984-08-18 Published:1984-08-18
Contact: Fu Li-Kuo

Abstract

Abstract:

The genus Cephalotaxus contains a small number of species. It is adequately

appreciated as a newly discovered cancerresistant medicament for the alkaloids obtai-

ned from its branches leaves and barks are of curative effect.

This paper deals with the classificatory revision based on the morphological featu-

res, with the reference to the anatomical characters of leaves, types of alkaloids and

pollen morphology observed. Two new combinations are proposed, and 4 species and

varieties are reduced in the paper. The genus Cephalotaxus is thus suggested to consist

of 2 sections and 9 species. The trees occur in East Asia and the north of Indo-China,

with 88% found in China where is the distribution centre and refuge of the genus.

The genus in discussion is of unique morphological features which are distinctly dif-

ferent from these of Amentotaxus, Cephalotaxaceae, containing a single genus of Ce-

phalotaxus, is closely related to Taxaceae, and therefore the Cephalotaxaceae is best

placed in the Taxinieae of Coniferales.

Key words: Cephalotaxus, Systematic position, taxonomical, revision, geographical distribution

Fu Li-Kuo. A Study on the Genus Cephalotaxus Sieb. et Zucc.[J]. .

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A Study on the Genus Cephalotaxus Sieb. et Zucc.

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