119 
4. DISCHIDIOPSIS Schleehter. 
1. D. philippinensis Selilecliter in Peik. Frag. FI. Philip. (1904) 128. 
(.OSOO Merrill) April, 1904. In thickets below 50 ni. Endemic. 
5. HOYA R. Br. 
1. H. cumingiana Decne. I. e. 030. 
(311 Whitford) May. An epiphyte in forests at 700 m. Endemic. 
This species is abundant in the region of Finns insularis, northern Luzon, 
where it is always found on bowlders, outcroppings, and dill's. 
2. H. luzonica Schleehter 1. c. 130. 
(2505 Merrill) June. In thickets along the river at 150 m. Endemic. 
3. H. multiflora Blnme; Hook. f. 1. e. 52. 
(129 Barnes) Januar_y; (2330 Borden) December; (1047, 1258 Whitford) 
.lannary. May; (2264 Meyer) December. Epiphytic, 75 to 150 m. Malayan 
Peninsula and Archipelago. 
6. MARSDENIA R. Br. 
1. M. philippinensis Schleehter 1. c. 133. 
.(3315 Merrill) Oetoher; (0147 Leihery) July.* In thickets below 100 m. 
Endemic. 
In addition to the above Asclepiudacea’, 9 other distinct species from the 
Lamao region are represented in our herbari\im, but as dui)licates of these are 
in the bands of Dr. R. Schleehter for identification, no attempt has here been made 
to determine them. 
TUBIFLOR,®. 
CON V( ILVULACE^l]. 
1. RiVEA Choisy. 
1. R. barnesii Merr. Govt. Lab. Publ. 17 (1904) 40. 
(68 Barnes) November. In thickets at 30 m. Endemic. 
2. R. iuzonensis Hallier f. Bull. Herb. Boiss. 6 (1898) 715. 
(00, 351 Barnes) October, March; (2253, 2417 Meyer) December, January; 
(2048, 2391 Borde/i) October, January; (lO'io Whitford) January; (3120 Merrill) 
October. In thickets along the stream 25 to 500 m. Endemic. 
2. GUAM OC LIT Tournef. 
1. Q. vulgaris Choisy; DC. Prod., 9 (1845) 336. 
(3097 Merrill) October. In thickets below 100 m., introduced from tropical 
America, now spontaneous and widely distributed in the Philippines. 
3. IPOMCEA Linn. 
1. I. batatas (Linn.) Lam.; Clarke in Hook. f. FI. Brit. Ind. 4 (1883) 202. 
(.Iccasionally cultivated about Lamao, generally cultivated in tropical and 
subtropical regions. Sp.-Fil., Canioie. 
2. I. blancoi Choisy 1. c. 389. 
(1606 Borden) August, in thickets 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. Tropical Asia, Africa, and Malaya. 
4. I. paniculata (Linn.) R. Br. T. dlgitata Linn.; Clarke 1. c. 202. 
