RUBIACEAE 359 
described. I know of no Philippine plant in any family that 
agrees wholly with Blanco’s description and am forced to the 
conclusion that he correctly referred his Hydrocotyle monopetala 
to its proper genus, Ophiorrhiza. His specimens were from 
Malabrigo Point, Batangas Province, Luzon. 
Illustrative specimen from Mount Maquiling, Laguna Province, 
Luzon, August 23, 1916, comm. C. Mabesa (Merrill: Species 
Blancoanae No. 976). 
WENDLANDIA Bartling — 
Rondeletia asiatica Blanco Fl. Filip. (1837) 146, non Linn.=Wendlandia 
exserta Blanco op. cit. ed. 2 (1845) 104 (exerta) ; ed. 3, 1 (1877) 191, 
t. 302, non DC.=WENDLANDIA LUZONIENSIS DC. 
This species is common and widely distributed in the Philip- 
pines at low and medium altitudes and, while the common 
form does not exactly match the type material of Wendlandia 
luzoniensis DC., it is probably only a form of de Candolle’s 
species, which in turn may not prove to be specifically distinct 
from W. paniculata Roxb. 
Illustrative specimen from Montalban, Rizal Province, Luzon, 
February, 1914 (Merrill: Species Blancoanae No. 233). 
HYMENODICTYON Wallich 
Exostemma philippicum Blanco Fl. Filip. ed. 2 (1845) 113; (sp. nov.); ed. 
3, 1 (1877) 203, t. 106, non R. & S.=HYMENODICTYON EXCELSUM 
(Roxb.) Wall. 
I have followed the Kew identification of Vidal’s Luzon speci- 
men in referring the Philippine material to Wallich’s species. 
A critical revision of the genus, with abundant material, may 
show that the Philippine form is distinct, or perhaps refer- 
able to some other named species. It is widely distributed 
in the Philippines and presents an excellent illustration 
of the difficulties encountered in attempting to determine the 
identity of some of Blanco’s species from native names cited by 
him. His original material was, in part, from Angat, Bulacan 
Province, Luzon, and he cites the Tagalog name huliganga. 
This name is still used in Angat for the same species, but, so 
far as our records show, is used in no other province. In other 
parts of Bulacan the name appears as aligango; in Rizal Province 
it is known as hibao and as malatabaco (the latter a manufac- 
tured name=“false tobacco’); in the [Ilocos provinces it is 
known as abar; in Nueva Ecija as balangcori; in Guimaras 
Island as magtalisay; and in Basilan Island as camatolong. 
Illustrative specimen from Angat, Bulacan Province, Luzon, 
