JOURNAL OF THE COLLEGE OF SCIENCE, IMPERIAL UNIVERSITY 

 TOKYO, JAPAN. 



VOL. XVIII., ARTICLE 4. 



On the Comparative Anatomy of the Cucurbitaceœ, 

 Wild and Cultivated, in Japan J 



By 

 Atsushi Yasuda, Eifjnhushi. 



With Bates L-V. 



Introductory and Historical. 



The anatomical characters of the Cucurbitaccfe having long- 

 attracted the attention of botanists, and the special structures of 

 various organs having been investigated and described by them, 

 I shall begin this essay by giving a brief résumé of the work 

 that has thus far been done. Lestibondois'^ investigated the 

 arrangement and distribution of the fibro-vascular bundles in the 

 root of Cucurbita Pei^o and in the stem of Cucumis Melo, describing 

 at the same time the relation of the bundles in the stem to those 

 of the leaf in the latter plant. Van Tteghem^^ made an ana- 

 tomical study of the roots of Luffa, Lagenaria, and Cucurbita. 

 DüTAiLLY*^ observed the course of the fibro-vascular bundles in the 



1) Compare A. Yasuda. Preliminary Note on tlie Comparative Anatomy of Ciicurbitacea^, 

 Wild and Cnltivated in Japan. Botanical Magazine, Tokyo. 1901. Vol. XV. No. 17.>. 



2) Th. Lestibondois. Étude sur I'anatomie et la physiologie des végétaux. Lille 1840. 



3) Ph. van Tieqhem. Memoir sur la racine. Paris 1872. 



4) G. DuTAiLLY. Kecherches anatomiques et orgauogéniqucs sur les Cucurbit acées. 

 Congrès de Montpier. 1879. 



