Discussions on taxonomy of genusBetula in northeast China

Abstract

Many researches have been carried out on the taxonomy ofBetula in northeast of China, but the classification of species and subdivision of species had some divergences at all times, which led to a disorder for developing and utilizing resources ofBetula. In this paper, species and subdivision ofBetula were classified not only according to the wax sample ofBetula but also the comprehensive taxonomy of population characters, geographical distribution, and the habitat. The conclusion supported the Fu Pei-yuns’ (1995) viewpoint of the taxonomy ofBetula in the northeast of China. ButB. mandshurica (Regel) Nakai should be considered as one single species, the name ofB. platyphyla Suk. varphellodendroides Tung should be the synonym ofB. platyphyla varplatyphyla, andB. ermanii Cham. var.yingkiliensis liou et Wang should be incorporated intoB. ermanii Cham.B. ovalifolia Rupr should not be regarded as a variety ofB. fruticosa Pall. but as one single species.

Keywords

Taxonomy / Betula / Northeast forest region / S792.153 / S718.49 / A

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