Taxonomic Synopsis of Betula (Betulaceae) in India and Typification of Three Names.

Birches (Betula) are ecologically important plants in the Indian Himalayan Region, but they are still not fully understood from the taxonomic point of view. To provide a basis for taxonomic research, we present a taxonomic synopsis of Betula in India and an account of the material on which the names are based. Lectotypes are designated for the names B. acuminata Lindl. (synonym of B. alnoides Buch.-Ham. ex D. Don), B. cylindrostachya Wall. ex Lindl. and B. jacquemontii Spach. [ABSTRACT FROM AUTHOR]