xv, 3 Merrill: Notes on the Kwangtung Flora 241 



spicuously stipitate, but the pseudostalk presents several un- 

 developed ovules. The species seems to be allied to Ormosia 

 fordiana Oliv. 9 



PTEROLOBIUM R. Brown 

 PTEROLOBIUM ROSTHORNII Harms in Engl. Bot. Jahrb. 29 (1900) 410. 



Kwangtung Province, Lin District, Pak hill, Levine 3208, Oc- 

 tober 21, 1918, with the local name ye tau. 



This is the second species of the genus to be found in Kwang- 

 tung Province. The material agrees very closely with the orig- 

 inal description, which, however, is rather short and imperfect. 

 It has not otherwise been reported except by the original col- 

 lections in southern Szechuen. The Kwangtung material is 

 in fruit, the wings being 1.2 to 1.5 cm wide, brown and shining 

 when dry, and apiculate-acuminate by the nearly straight upper 

 suture which is slightly produced at the tip. 



DERRIS Loureiro 

 DERRIS ELEGANS (Grah.) Benth. in Miq. PI. Jungh. (1852) 252, Journ. 

 Linn. Soc. Bot. 4 (1860) Suppl. 109; Baker in Hook. f. Fl. Brit. 

 Ind. 2 (1878) 252. 

 Pongamia elegans Grah. in Wall. Cat. (1832) No. 7540, nomen nudum. 



Kwangtung Province, Shai Chiu Mountain, Levine 207 U, May 

 4, 1918, with the local name kau ngar fa. 



This species has not previously been reported from China, 

 but the flowering specimen cited above is an excellent match 

 for our large series of Philippine specimens representing it; 

 fruiting specimens of the Chinese form are desirable to verify 

 the correctness of the determination. 



Tenasserim, Andaman Islands, Malay Peninsula, Sumatra, and 

 the Philippines. 



DERRIS TRIFOLIATA Lour. Fl. Cochinch. (1790) 433. 



The genus Derris was based by Loureiro on two species. The 

 first, D. pinnata, the type of which is preserved in the herbarium 

 of the British Museum, is Dalbergia pinnata (Lour.) Prain, a 

 species of wide distribution in the Indo-Malayan region more 

 commonly known as Dalbergia tamarin&ifolia Roxb. The second 

 species described by Loureiro, D. trifoliata, was based on speci- 

 mens from the vicinity of Canton, and the type is preserved in 

 the herbarium of the Paris Museum of Natural History. I am 

 of the opinion that this species should be interpreted as the type 

 of the genus Derris. The species by many authors has been 

 reduced to Derris uliginosa (Roxb.) Benth., and a recent critical 



9 In Hook. Ic. IV 5 (1895) t. 21,22. 



