374 The Philippine Journal of Science 1921 
JACQUEMONTIA Choisy 
JACQUEMONTIA PANICULATA (Burm. f.) Hallier f. in Engl. Bot. Jahrb. 
18 (1894) 95. 
Ipomoea paniculata Burm. f. Fl. Ind. (1768) 50, ¢. 21, f. 3. “Habitat 
in Java.” 
Convolvulus parviflorus Vahl Symb. 3 (1794) 29. 
A well-known and widely distributed species, for which Bur- 
man’s specific name should be retained. 
MERREMIA Dennstaedt 
MERREMIA EMARGINATA (Burm. f.) Hallier f. in Engl. Bot. Jahrb. 16 
(1892) 552. 
Evolvulus emarginatus Burm. f. Fl. Ind. (1768) 77, t. 90, f. 1. 
“Habitat in India.” 
Convolvulus reniformis Roxb. Fl. Ind. 2 (1824) 67. 
Ipomoea reniformis Choisy Conv. Or. (1834) 64. 
A well-known and widely distributed Indo-Malayan species, 
more commonly known as Ipomoea reniformis Choisy. 
MERREMIA GEMELLA (Burm. f.) Hallier f. in Engl. Bot. Jahrb. 16 
(1892) 552. 
Convolvulus gemellus Burm. f. Fl. Ind. (1768) 46, t. 21, f.1. “Habitat 
in Java.” 
Ipomoea gemella Roth Nov. Pl. Sp. (1821) 110. 
Ipomoea chrysedeis Ker in Bot. Reg. t. 270. 
Burman’s binomial is the basis of the well-known and widely 
distributed Merremia gemella Hallier f. 
MERREMIA HEDERACEA (Burm. f.) Hallier f. in Engl. Bot. Jahrb. 18 
(1894) 168. 
Evolvulus hederaceus Burm. f. Fl. Ind. (1768) 77, t. 30, f. 2. “Habitat 
in Java.” 
Ipomoea polyantha Mig. Fl. Ind. Bat. 2 (1857) 613. 
A well-known and widely distributed Malayan species. 
MERREMIA VITIFOLIA (Burm. f.) Hallier f. in Engl. Bot. Jahrb. 16 
(1892) 552." 
Convolvulus vitifolius Burm. f. Fl. Ind. (1768) 45, t. 18, f. 1. 
Convolvulus angularis Burm. f. op. cit. 46, t. 19, f. 2. 
Burman’s material was from Java, Merremia vitifolia (Burm. 
f.) Hallier f. being a characteristic, well-known species. I 
can see no reason for distinguishing Convolvulus angularis 
Burm. f., for Burman describes its flowers as yellow, although 
including a reference to Pryon “flore purpureo.” The reference 
to Pryon should probably be excluded. 
