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Maximowiczii is nearest to Salix Urbaniana var. Schneideri Miyabe 

 & Kudo. When Prof. Komarov payed a visit to our herbarium during 

 his attendance to the Third Pan-Pacific Congress held in Tokyo, 1926 

 and saw the specimens of Salix Urbaniana var. Schneideri, he said 

 that he can not discriminate it from his Salix Maximowiczii. Yet, 

 Salix Urbaniana var. Schneideri has broader leaves and the ovaries 

 pilose at the basal portion. The glands of the female flowers are 

 almost invariably distinct. Mr. KlMURA being encouraged by the 

 words of Prof. Komarov put these three species together. He sepa- 

 rated the group of Salix cardiophylla from Salix naming as Toisusu. 

 The ventrali-lateral glands of the female flowers are the remnant of 

 the former five glands in a set. When these two glands begin to 

 unite, they take such a form as designated in the figure B and C of 

 the plate VII, and gradually transform to the one ventral gland of 

 ordinary flowers of Salix. The catkins of this group are drooping or 

 nodding, but unlike Popidus and Chosenia, the pollens are carried by 

 insects. Without doubt, the group of Salix cardioplylla represents a 

 distinct section of Salix, but there seems no good reason to separate 

 it from Salix as a genus Toisusu. 



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