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The Chromosome Numbers of 12 Species in Orchidaceae from China


The present paper reports the chromosome numbers of 12 species in Or-
chidaceae from China. The results are as follows: Bletilla striata (Thunb.) Rchb. f. 2n=
32, Calanthe discolor Lindl. 2n=40, Calanthe hamata Hand. -Mazz. 2n=40, Cephalanthera
erecta (Thunb.) Bl. 2n=34, Cephalanthera falcata  (Thunb.)  B1. 2n=34,  Changnienia
amoena Chien 2n=46, Cremastra appendiculata (D. Don) Makino 2n = 42, Dendrobium
moniliforme (L.) Sw. 2n=38, Gastrodia elata Bl. n=15,  18, Liparis dunnii Rolfe 2n=
20, Platanthera minor (Miq.) Rchb. f. 2n=42, Pleione bulbocoidioides (Franch.) Rolfe
2n=40.


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