307 
Flora of the Malayan Peninsula. 
Ridley! Andamans: very common. Nicobabs : Eurz ! Prain ! — - 
Disteib. E. and S.E. Asia, Tropical Africa. 
Vae. occidentalis , Hallier f. Verslag. Buitenzorg 1895, 127. Leaves 
wide-cordate, softly hairy on both sides, 4 in. long, 3-5 in. wide ; cymes 
umbellate ; corolla yellow. Convolvulus umbellatus, Wall. Cat. 2329. 
Ipomcea umbellata, Mez Prim. Elor. Esseq. 99. I. cymosa, var. culta, 
Prain Journ. As. Soc. Beng. LXIII. 2, 108. 
Peeak: Sungah Ryah, Eunstler 912\ — Disteib. Bengal, naturalised; 
Tropical America. 
8. Meeeemia ceispatula, Prain Beng. PI. II. 730; vae. anda- 
manica, Prain. A large glabrous scandent herb. Leaves ovate-cor- 
date, acuminate, margins entire or faintly undulate, glabrous on both 
surfaces, 3 to 4 in. long, 2 - 5 to 4 in. wide ; petiole 1 to 1’5 in. long. 
Flowers in axillary few-flowered cymes, peduncles l - 5 to 2 in. long, 
pedicels '75 to l - 25 in. long, thickened upwards. Sepals orbicular, 
■5 in. long, in fruit -75 in. long. Corolla campanulate, limb hardly 
lobed, tube hirsute externally, yellow, 1*25 in. long. Capsule sub- 
orbicular, -75 in. across. Seeds minutely velvety, margins somewhat 
shaggy. Ipomcea petaloidea, var. andamanica, Prain Journ. As. Soc. 
Beng. LXIII. 2, 110. 
Andamans : S. Andaman, common. 
This is in all probability specifically distinct from Merremia crispatula ( Ipomcea 
petaloidea, Choisy), but it seems preferable to treat it for the moment as a variety of that 
species and not as a new species, because of its remarkable resemblance to Merremia 
Riedeliana, Hallier f. (Ipomcea Riedeliana, Oliv.), and Merremia mammosa, Hallier f. 
(Ipomcea mammosa, Choisy). From the former, as described and figured by Oliver, 
this differs in having a 4-celled ovary with 1 ovule in each cell, whereas M. Riedeliana 
has a 2-celled ovary with 4, sometimes 5, ovules in each cell. From M. mammosa , as 
figured by Eumphius, this differs in having obtuse calyx-lobes and a shaggy corolla ; 
Bumphius’ figure shows the sepals acute and the corolla glabrous. This plant appears 
to be the same thing as Convolvulus platypeltis, Span., from Timor, and if it proves to 
be distinct alike from M. Riedeliana and M. mammosa, which last is cited by Dr. Hallier 
as an Andaman plant, though we have no authentic example of M. mammosa from 
the Andamans at Calcutta, the name it should bear will be Merremia platypeltis. 
12. Opeeculina, Manso. 
Large herbaceous climbers ; stems, peduncles and petioles usually 
winged. Leaves large, entire or lobed, rarely peltate. Flowers large, 
showy, axillary, solitary or often in few-flowered cymes. Sepals 5, large, 
ovoid, glabrous, accrescent in fruit and ultimately irregularly splitting 
from the tip. Corolla infundibuliform, rarely campanulate ; tube with 
5 vertical smooth bands. Stamens 5 ; filaments filiform ; anthers large, 
at length contorted ; pollen never spinulose. ' Ovary 2-celled, glabrous ; 
ovules 4 ; style filiform ; stigma 2-globose. Fruit a capsule, not 
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