504 
ROBINSON. 
similar but greatly reduced leaves, obtuse or sometimes on one side acute 
at the inequilateral base, the margins above the middle shallowly serrate 
or dentate, the apex forming an obtuse mucronate acumen ; upper surface 
glabrous but with conspicuous cystoliths, the under densely fulvous- 
pubescent on the veins with less conspicuous cystoliths; main nerve of 
the narrower side arising about 5 mm from the base, of the wider about 
1 mm from the further-produced base; stipules acicular from a triangular- 
ovate base, in all about 6 mm long. 
Bucas, on cliffs in semi-shaded ravines at 15 m elevation, Merrill 5269. Allied 
to the Bornean species, as already indicated, but not at all to be .confused with 
any of them. 
The following extra-Philippine species are referable to this genus. 
1. Elatostematoides thibaudiaefolium (Wedd.) comb. nov. 
Elatostema thibaudiaefolium Wedd. in Ann. Sei. Nat. Bot. IV 1 (1854) 188. 
Elatostema rostratum Miq. in Zoll. Syst. Verzeichm ( 1854-1855) 102, non 
Hassk. Cat. Hort. Bogor. Alt. (1844) 79. 
The synonymy follows both Weddell and Miquel, 31 each accepting' the other’s 
name in preference to his own. The ruling of the Vienna Congress that an older 
name has to be valid in order to preclude its later use, would introduce additional 
complications. Again following both Weddell and Miquel, Elatostema rostratum 
Hassle, is the same as Procris rostrata Reinw. ex Blume Bijdr. (1825) 510, which 
they both reduce to Pellionia elatostemoides Gaudich. Freyc. Voy. Bot. (1826) 
pi. 119. If the reduction is correct, Blume’s name is the oldest for that species, 
but whereas he cites Javan localities only, Miquel credits the species to the 
Moluccas only, while Weddell also omitting Java though saying that he had seen 
the speeies in Mus. Lugd.-Bat., ascribes the plant to the Moluccas, New Guinea, 
Fiji, and the Marquesas. A reexamination of the collections is necessary before 
displacing Gaudichaud’s name. 
2. Elatostematoides pictum (Hallier f.) comb. nov. 
Elatostema (Pellionia) pictum Hallier f. Ann. Jard. Buitenz. 13 (1896) 300. 
Pellionia picta Boerl. Handl. Kenn. FI. Ned. Ind. 3 1 (1900) 375. 
3. Elatostematoides robustum (Hallier f.) comb. nov. 
Elatostema (Pellionia) robustum Hallier f. 1. c. 302, pi. 25, fig. 2. 
Pellionia robusta Boerl. 1. c. 
4. Elatostematoides vittatum (Hallier f.) comb. nov. 
Elatostema (Pellionia) vittatum Hallier f. 1. c. 303, pi. 26, fig. 1. 
Pellionia vittata Boerl. 1. c. 
5. Elatostematoides insigne (Hallier f.) comb. nov. 
Elatostema (Pellionia) insigne Hallier f. 1. c. 304, pi. 26, fig. 2. ■ 
Pellionia insignis Boerl. 1. c. 
6. Elatostematoides mesargyreum (Hallier f.) comb. nov. 
Elatostema (Pellionia) mesargyreum Hallier f. 1. c. 305, pi. 21, fig. 2. 
Pellionia mesargyrea Boerl. 1. c. 
FI. Ind.. Bat. 1= (1859) 242. 
