618 cvn. verbenacEjE. [. Premna. 
Leaves oblong-obovate, adult sub-coriaceous (8) P. trichostoma 
Leaves elliptic to lanceolate, coriaceous 
chartaeeous . . , . . (9) P, perakensis 
Leaves broadly elliptic, rigid; nerves 4 to 5 
pairs; flowers larger .... (io) P. punctulata 
Corymbs dense. 
Erect shrub. Leaves membranous ovate 
acuminate, base broad . . (n) P. cordifolia 
Climber. Leaves stiff coriaceous, 4 to 5 in. 
across. (12) P. Wrayi 
Climber. Leaves large membranous; corymbs 
8 in. across. (13) P. sterculifolia 
Climber. Lower lip of calyx 2-lobed; calyx 
sub-quadrangular; leaves oblong, blunt 
sub-coriaceous . . . . (14) P. Ridleyi 
Calyx not 2-lipped truncate or hardly lobed; leaves 
coriaceous; robust shrub . . . (15) P. Kunstleri 
Calyx sub-equally 5-lobed; leaves large, stellate 
tomentose tree ..... (16) P. pyramidata 
(1) P. littoralis King and Gamble, Kew Bulletin, 1908, p. 107; 
Gamble, Journ. /Is. Soc. Beng., l.c. 811. 
Small tree; branchlets tawny pubescent. Leaves chartaeeous 
coriaceous, ovate or ovate-deltoid acuminate, base cordate or 
truncate, edge denticulate, midrib and nerves elevate beneath, 
4 to 6 in. long, 2 to 3 in. wide; petioles 1 to 1*5 in. long, puberulous. 
Corymbs trichotomous pubescent, 4 in. long, 6 in. wide. Flowers 
very pale green. Calyx *075 to 1 in. long, 2-lipped, upper shortly 
3-lobed, lower longer, 2-lobed pubescent. Corolla half as long 
again, villous hairy inside. Drupe black, globose. Hab. Sea- 
coasts, rare. Perak, Matang (Wray). 
(2) P. rubens Ridl. P. flavescens var. rubens Clarke in Hook, 
fil. F.B.I. iv. 578; Gamble, l.c. 812. 
A pubescent climber. Leaves chartaeeous, ovate-oblong 
acuminate, base cordate round or cuneate, above minutely densely 
bristly, beneath pubescent, 4 to 6 in. long, 2 to 2-5 in. wide; petioles 
1 to 1*5 in. long. Corymbs 4 in. long and wide, pubescent. Calyx 
campanulate, 2-lipped, pubescent. Corolla pale green, funnel- 
shaped, -i to -15 in. long, 2-lipped. Drupe -15 in. long, globose. 
Hab . Malacca (Hervey); Ayer Panas (Griffith). Rare. 
This is very distinct, I think, from the true P. flavescens Ham., nor do I 
think the much more glabrous, larger-flowered P. lucidula Miq. of Java is 
the same as the Malacca plant to which Gamble refers it. 
(3) P. Derryana King and Gamble, Kew Bulletin, 1908, p. 107; 
Gamble, l.c. 813. 
Climber. Leaves membranous sub-sessile obovate or elliptic, 
glabrous entire, shortly, abruptly acute, base narrowed blunt, 5 to 
8 in. long, 3*5 to 4 in. wide. Inflorescence of 3 or 4 spikes, 3 to 4 
in. long of interrupted whorls of sessile flowers, on a peduncle 
2 in. long. Calyx 2-lipped, lips nearly entire rounded, golden- 
hairy. Corolla rather longer, glabrous except for a few white 
