COMPAEATIVE ANATOMY OF THE CÜCÜEBITACE^. 3 



others came to the conchision, that the main axis of the tendril 

 corresponds to a branch, which carries several leaves. The testa 

 has been investigated by Bischoff/* Stkandmaek,-^ Höhnel,"^ 

 Fickel/^ GoDFKm,^^ Hartwich/^ and Haez.'^ According to 

 HöHNEL the testa consists of ten layers of cells, of which the first 

 layer arises from the epidermis of the carpel ; the second, the swollen 

 epidermis, is made up of prismatic cells with thickened- ridges on 

 their walls, and together with the following three layers is derived 

 from the outer integument of the ovule ; the third consists of 

 irregular cells, abounding in intercellular spaces ; the fourth, of 

 large stone- cells; the fifth, of reticulate cells with many intercellular 

 spaces ; the sixth, of compressed cells derived from the inner 

 integument of the ovule ; the seventh originates from the epidermis 

 of the luicellus ; the eighth, from the perisperm ; the ninth and 

 the tenth, from the endosperm. 



So far the chief results of investigations hitherto made con- 

 cerning the anatomy of the Cucurbitacese ; for my part, I have 

 tried to examine and compare the internal structures of various 

 organs of those Cucurbitacese which are found wild or are cultivated 

 in Japan. The number of our known genera belonging to this 

 family is fifteen : namely, Adiiiosiemma, Melotkria Muhia,^^ 



1) G. W. BisCHOFF. Handbuch der botanischen Terminologie und Systemkunde. 

 Nürnberg 1833. Bd. I. 



2) J. E. Strandmakk. Bau der Samenschale. Jcsï's Bot. Jahresber. 1874. Bd. II. 



3) F. V. HöHNEL. Morj)hologische Untersuchungen über die Samenschale der Cucur- 

 bitaceen. Wien 187(). 



4) J. F. FiCKEL. Ueber die Anatomie und Entwicklungsgeschichte der Samenschalen 

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



5) J. GoDFRiN. Etude histologique sur les téguments séminaux des Angiospermes. 

 Paris 1880. 



6) C. IIartavich. Ueber die Samenschale der Coloquinthe. Arcliiv. der Pharm. 1882. 

 Bd. CCXX. 



7) C. D. ÎIarz. Landwirtliscliaftliche Samenkunde. 1885. Bd. II. 



S) H. KuKonvA. A List of Phanerogams collected in the Southern Part of Okinawa, an 

 island of the Loochoo Chain. Botanical Magazine, Tokyo. 1900. Vol. XIV. No. 163. p. 123. 



