308 The Philippine Journal of Science 1916 
PORANIA Burmann 
PORANIA VOLUBILIS Burm. FI. Ind. (1768) 61, t. 21, f. 1. 
Amboina, Rel. Robins. 1821 , September 25, 1913, from specimens culti- 
vated in the town of Amboina; probably an introduced plant here. 
Burma to the Philippines and Malaya. 
EVOLVULUS Linnaeus 
EVOLVULUS ALSINOIDES Linn. Sp. PI. ed. 2 (1762) 292. 
Amboina, Soja road, Rel. Robins. 1820, in open grassy places, altitude 
150 to 300 meters. 
Tropics of both hemispheres. 
M ERR EM I A Dennstaedt 
MERREMIA VITI FOLIA (Burm.) Hallier f. in Engl. Bot. Jahrb. 16 
(1893) 552. 
Convolvulus vitifolius Burm. FI. Ind. (1768) 45, t. 18, f. 1. 
Amboina, Kati-kati, Rel. Robins. 1826, October 19, 1913, in thickets at 
an altitude of about 70 meters. 
Southeastern Asia to the Philippines and Malaya. 
MERREMIA HASTATA (Desr.) Hallier f. in Engl. Bot. Jahrb. 16 (1893) 
552. 
Convolvulus hastatxis Desr. in Lam. Encycl. 3 (1791) 547. 
Amboina, Batoe gad j ah, Rel. Robins. 182i, August 5, 1913, in grassy 
places at an altitude of 150 meters. 
Tropical Africa and Asia through Malaya to tropical Australia. 
IPOMOEA Linnaeus 
IPOMOEA PANICULATUS (Linn.) R. Br. Prodr. (1810) 486. 
Convolvulus paniculatus Linn. Sp. PI. (1753) 156. 
Ipomoea digitata Linn. Syst. ed. 10 (1759) 924. 
Amboina, Paso, Rel. Robins. 1823, November 25, 1913, in thickets along 
roadsides near sea level. 
Tropics of both hemispheres. 
IPOMOEA TRILOBA Linn. Sp. PI. (1753) 161. 
Amboina, near the town of Amboina along the beach, Rel. Robins. 1825, 
August 22, 1913. 
A native of tropical America, introduced into the Philippines at an early 
date from Mexico and now found throughout the Archipelago; also in the 
Marianne Islands, Java, Mauritius, Singapore, and perhaps in various other 
parts of Malaya. 
IPOMOEA OBSCURA (Linn.) Ker. in Bot. Reg. t. 239. 
Convolvulus obscurus Linn. Sp. PI. ed. 2 (1762) 220. 
Boeton, Baoe baoe, Rel. Robins. 2^18, July 13, 1913. 
India to Malaya, the Mascarene Islands and tropical East Africa. 
IPOMOEA sp. 
Boeton, Baoe baoe, along the beach, Rel. Robins. 2477, July 13, 1913. 
