32 TUE JOURNAL OF JAPANESE BOTANY. (Voi. [. \o. lu. 



Nom. Jaj). Yokogam-budo (nov.)- 

 Hah. Prov. TOSA : Mt. Yokogura (T. Making !). 

 Very rare. A supposed hybrid between Vitis ßexuosa Thunb. 

 and V. saccharifera Making. It grows on limestone rock. 



Yitis Thunbergii Sieb, et Zucc. 



a. typica Making. 



Vitis Tkunhergii Sieb, kt Zucc. in Al>li. Akad. Mnench. IV. 2 

 (1843), p. 98. 



Leaves usually trilobed, sometimes sub-quinquelobed. 



Nom. Jap. Ehi-dzuru. 



Hah. JAPAN, common. 



ß. partita Making, nov. var. 



Leaves quinqueparted with rotund sinvises, but sub-quinque- 

 parted in those of the superior ones ; lobes deeply feAV-sinuate or 

 shallowly so, sometimes repand-dentate. Otherwise as in the type. 



Nom. Jap. Kikuha-ehidzuru (nov.). 



Hah. JAPAN, not uncommon. 



Yitis Shiragai Making in Journ. Jap. Bot. I. no. 4 (Apr. 1917), 

 p. 105 (Jap.) with figure. 



A vine with mdely trailing stem, which is woody in age ; 

 branches slender, often subflexuous, several-angulate (often nearly 

 alate) and finely striate, thinly tomentose Avhen young, but densely 

 so towards the growing point ; tendril slender, thinly tomentose 

 when young, forked above. Leaves rotund-cordate or subreniform- 

 cordate, often 3-angulate or 3-angulato-lobed above, acute or sub- 

 ^xjuminato-acute with a mucronate tip at apex, cordate with rotund 

 ■ lobes and a deep or wide sinus at l)ase, very depressedly angulato- 

 dentate with a mucronate tip, chartaceous or membranaceous, glabrate 

 above, thinly tomentose with wools beneath, about 7-15cm. long, 

 6|-12cm. wide ; ribs and veins prominent beneath, pubescent ; petiole 

 slender, thinly tomentose, 2-llcm. long. Thyrsus shorter than the 

 leaves, with small bracts and bracteoles ; rachis thialy tomentose. 

 Flower small, pedicellate, greenish, rather dense in male but rather 

 loose in pistiliferous one ; pedicel shorter than or equal to the flower 

 in length, gracile, but somewhat stouter in the pistiliferous flower. 

 Male flower about 2mm. long ; alabastrum obovoid. Calyx small, 

 ver\^ short, thinly and entirely margined. Petals 5, narrowly obovate, 

 l-nerved. Stamens 5. Disk thick and conspicvious. Pistiliferous 

 flower ovoid in alabastrum. Calyx as in the male flower. Patals 

 5, ovato-oblong, l-nerved. Stamens 5, hardly shorter than the 

 j)istil in length. Disk 5-lobed. Ovary ovoid ; stigma subsessible. 



