119 



4. DISCHIDIOPSIS Schlechter. 



1. D. philippinensis ScliU'cliter in Perk. Frag. ¥\. Philip. (1904) 128. 

 (3809 Merrill) April, 1904. In thickets below 50 m. Endemic. 



5. HOYA R. Br. 



1. H. cumingiana Decne. 1. c. (;3(i. 



(.311 Whit ford) May. An epiphyte in forests at TOO ni. Endemic. 

 This species is abundant in the region of Finns insularis, northern Luzon, 

 where it is always found on bowlders, outcroppiiigs, and cliffs. 



2. H. luzonica Schlechter 1. c. 130. 



(2.5(i5 MerriU) .l\\\w. In thickets along the river at I.IO m. Endemic. 



3. H. multiflora Illume; Hook. f. 1. c. 52. 



(129 Barnes) January; (2330 Borden) December; (1047, 1258 Whitford) 

 January, May; (2204 Meyer) December. Epiphytic, 75 to 150 m. Malayan 

 Peninsula and Archi])e]ago. 



6. MARSDENIA R. Br. 



1. M. philippinensis Schlechter 1. c. 133. 



(3315 Merrill) October: (0147 Leiberg) July. In thickets below 100 m. 

 Endemic. 



In addition to the al)ove Asclepiadacew, 9 other distinct species from the 

 Lamao region are represented in our herbarium, but as duplicates of these are 

 in the hands of Dr. R. Schlechter foi' identification, no uttem]it has here been made 

 to determine them. 



TUBIFLOR^. 



CONVOLVULACE.E. 



1. RIVE A Clioisy. 



1. R. barnesii :\Ierr. (^ovt. Lab. Publ. 17 (1904) 40. 

 (68 Barnes) November. In thickets at 30 m. Endemic. 



2. R. luzonensis Hallier f. Bull. Herb. Boiss. 6 (1898) 715. 



(60, 351 Barnes) October, March; (2253, 2417 Meyer) December, January; 

 (2048, 2391 Borde») October, January; (1035 Whitford) January; {•3120 Merrill) 

 October. In thickets along the stream 25 to 500 m. Endemic. 



2. QUAMOCLIT Tourncf. 



1. Q. vulgaris Clioisy; DC. Prod., 9 (1845) 336. 



(3097 Merrill) October. In thickets below 100 m.. introduced from tropical 

 America, now s])ontane()Us aiul widely distrilinted in the l'hilip])ines. 



3. IPOMCEA Linn. 



1. I. batatas (Linn.) Lam.; Clarke in Hook. f. Fl. Brit. Ind. 4 (1883) 202. 

 Occasionally cultivated about Lamao. generally cultivated in tropical and 



subtropical regions. Sp.-Fil., Caniote. 



2. I. bianco! Choisy 1. c. 389. 



(1606 Borden) August. In tliickets below 100 m.. widely distributed in the 

 Philippines. 



3. I. obscura (Linn.) Ker; Clarke 1. c. 207. 



(3099 Merrill) October. In thickets below 100 m., widely distributed in the 

 Philippines. Tiopical Asia. Africa, and Malaya. 



4. I. paniculata (Liiui.) R. Br. /. diyitafa Linn.; Clarke 1. c. 202. 



