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 
PTEROLOBSUM 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. 
DERR IS Loureiro 
DERRIS ELEGANS (Grah.) Benth. in Miq. PI. Jungh. (1852) 252, Journ. 
Linn. Soc. Bot. 4 (1860) Suppl. 109; Baker in Hook. f. FI. Brit. 
Ind. 2 (1878) 252. 
Pongamia elegans Grah. in Wall. Cat. (1832) No. 7540, nomen nudum. 
Kwangtung Province, Shai Chiu Mountain, Levine 207U, 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 TRIPOLI ATA Lour. FI. Cochineh. (1790) 433. 
The genus Derns 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 tamarindi folia 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 idiginosa (Roxb.) Benth., and a recent critical 
* In Hook. Ic. IV 5 (1895) t. 2422. 
