THE FLORA OP MOTTNT HALCON. 305 



green above, ]iale l)eiu'ath, .somewhat sliining, o,lal)rous throug-lioiit, base 

 and apex aeuniinate; nerves 15 to 20 on both sides of tlie midrib, very 

 prominent and brownish ])eneat]i, s])reading, anastomosing near the 

 margins ; petiole 3 to 5 cm. long, the lamina somewhat deeurrent-acumin- 

 ate; stipules lanceolate-acuminate, al)out 3 mm. long. Cymes terminal, 

 ferruginous puberulent, the peduncle 4 to 5 cm. long, the branches 4 cm. 

 long or shorter. Calyx 2.5 to 3 mm. long, the teeth 5, short, acute. 

 C^orolla wliit(\ 8 mm. long, the tube cylindrical, slightly inflated bt'low, 

 (i mm. long, the lobes 5, elliptical-oblong, obtuse, 2 mm. long. 



In huniid forests at 150 m. alt. (No. 5G28). 



A species characterized by its glabrous, long petioled leaves, the nerves sub- 

 parallel, very numerous and prominent. 



Ophiorrhiza oblongifolia DC. Prodr. 4 (1830) 415. 



In forests at 1.200 m. alt. (No. 5496), small leaved form; at aliout the same 

 altitude (No. 4385 iferritt) June, IflOfi, a large leaved form. 

 Widely distributed in the Philippines. Endemic. 



ARGOSTEMMA Wall. 



Argostemma solaniflorum Elmer Leaflets Philip. P.ot. 1 (lOOfl) 2. 

 In forests at 1,350 m. alt. (Nos. 0105, 0180) ; also collected by Merrift (Nos. 

 4470. 4300). 



Previously known only from northern Luzon. 



♦ UNCARIA Schreb. 



Uncaria philippinensis Elmer Leaflets Philip. Bot. (1900) 38. 

 In tliickets at 700 m. alt. (No. 5530). 

 Previously known from Luzon and Mindoro. 



NAUCLEA Linn. 

 Nauclea sp. 



In forests at 450 m. alt. (4337 Merrift) June, 1900. Undeterminable, the 

 material being very fragmentary and in ])0()r condition. 



MUSSAENDA Linn. 



Mussaenda anisophylla Vidal Phanerog. Cuming. Philip. (1885) 178. 

 In tliickets at 250 m. alt. (No. 4330 Merrift) June, 1900. 

 Apparently widely distributed in the Philippines. Endemic. 



UROPHYLLUM Wall. 



Urophyllum glabrum Jack ex Roxb. Fl. Ind. ed. Carey, 2: ISO. 



In forests at 300 m. alt. (No. 5603). 



From Burma through the Malayan Peninsula to the Malayan Archipelago. 



Urophyllum bataanense Elmer Leaflets Philip. Bot. (1900) 40; Merr. in 

 Philip. Journ. Sci. 1 (1!»0()) Suppl. 129. 



In forests at 1,500 m. alt. (Nos. 6144, 0179) ; also collected by Merrift as low 

 as 450 m. alt. (Nos. 4318, 4339, 4389). 



Previously known only from Luzon. 



