84 ART. I.— B. HAYATA: 
Remarkable for its peltate stipule; leaflets are sometimes 
entire, sometimes lobed. 
Pachyrrhizus Ricu. 
Pachyrrhizus angulatus Ricu.; Hoox. f. Fl. Brit. Ind. IL p. 
207; Hoox. et Arn. Bot. Beech. Voy. p. 184; Fores et Hemst. 
fod. Fl. Sin. J. p. 2194. 
Has. Ako: Toko, leg. G. Naxawara, Sept. 1905, (No. 522). 
Distris. South China; Tropics. 
OssERV. Scandent ;. leaves trifoliolate, terminal leaflet broadly 
ovate, twice as broad as long, angulate, abruptly and shortly 
acute, obtuse at the very end, 10 em. long, 18 cm. broad, trinerv- 
ed, stipellate, pale beneath, nearly glabrous, lateral leaflets 
nearly as the same as the terminal one, but very oblique; flowers 
on terminal raceme; flowers 2 em. long; calyx silky-pubescens. 
Derris Lovr. 
Derris elliptica Bento. in Journ. Linn. Soc. IV. Suppl. p. 111 ; 
Hoox. f. Fl. Brit. Ind. II. p. 248. 
Has. Jinkakurin, leg. T. Kawaxamr et Y. Samana, Aprili. 
1908, (No. 3769). 
Disrris. India, Siam, Malay Archipelago. 
Derris oblonga BEentu. in Journ. Linn. Soc. [V. Suppl. p. 112; 
Forses et Hemstz. Ind. FI. Sin. I. p. 199. 
Has. Kotoshd, leg. T. Kawakami et G. Nakanwara, 1906, 
Mart. (No. 1058). 
Disrris. South China. 
