Preliminary Note on the Comparative Anatomy 



of Cucurbitacese, wild and cultivated 



in Japan. 



Atsushi Yasuda, BigahusM. 



Lotah 1 ). Penzig 2 ), Fischer 3 ), Fickel 4 ), Hohnel 5 ), Bischoff 8 ), 

 Harz 7 ), Fremont 8 ), and others have early investigated the anatomical 

 characters of Cucvrbitacece, bringing to light the special structures of various 

 organs. I undertook, for my part, to study comparatively some differences 

 existing in the inner structures of Cucurbiiacece found wild and cultivated 

 in our country. In Japan the number of genera contained in this family 

 is nowadays known to be fifteen : Actinostemma, Benincasa, Bryonopsis 9 ), 

 CAtrullus, Cucumis, Cucurbita, Gymnostemma, Lagenaria, Luffa, Melothrio,, 

 Momordica, Mvkia xo ) i Schhopepon, Tricliosantlies, and Zehneria' 1 ), of which 

 I examined twelve genera, Bryonopsis, Mulda, and Zehneria having been 

 inaccessible to me. 



I investigated the anatomical structures of ,the stems, hypocotyls, blades, 



x ) Henri-Aime Lotae. Essai sur l'Anatomie comparee des organes vegetatifs 

 et des teguments se'minaux des Cucurbitacees. Lille 1881. 



2 ) O, Penzig. Zur Verbreitung der Cystolithen im Pflanzenreich. Bot. Central bl. 

 1881. Bd. VIII., No. 13. 



3 ) A. Fischer. Untersuchungen iiber das Siebrohrensystem der Cucurbitaceen. 

 Bot. Centralbl. 1885. Bd. XXI, No. 4 



*) J. F. Fickel. Ueber die Anatomie und Entwicklungsgeschichte der Samen- 

 schalen einiger Cucurbitaceen. Bot. Ztg. 1876. Bd. XXXIV, Nr. 47-50. 



5 ) F. v. Hoiinel. Morphologische Untersuchungen iiber die Saraenscbale der 

 Cucurbitaceen. Wien 187G. 



e ) G. Wi Bischoff. Handbuch der botanisehen Terminologie und Systemkunde. 

 Niirberg 1S33. Bd. I. 



7 ) CD. Haez. Landwirthschaftliche Samenkunde. 1885. Bd. II. 



8 ) A. Fremont. Sur les tubes crible*s extra-liberiens dans la racine des Oeno- 

 thcrac^es. Journ. de Botanique. 1891. T. 5. 



9 ) H. Kuboiwa. A List of Plianerogams collected in the Southern Part of 

 Okinawa, an Island of the Loochoo Chain. Botanical Magazine. Tokyo. 1900. Vol. XIV, 

 No. 1G3. p. 123. 



10 ) H. Kuroiwa. he cit. p. 123. 

 1X ) H. Kuroiwa. loc. cit. p. 123. 



