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Macrocarpium (Spach.) Nakai Should Be Reaffirmed


The genus Macrocarpium has been accepted only by a few scholars since
its separation from Cornus L. by T. Nakai in 1909. Bentham,  Hooker,  Hutchinson and
the others consider that the ovary of Macrocarpium is 2-celled and the genus should be
placed back into Cornus. We have discovered that are generally I-celled.  In addition,
Macrocarpium is different from Cornus in basic chromosome number  (X),  flowering
physiological character,  inflorescence type and involucral scale. Thus the genus Ma-
crocarpium (Spach) Nakai should be reaffirmed.


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