1903.] King & Gamble— Flora of the Malayan Peninsula. 



181 



Johor: Bidley 4179. Selangor : Ridley 8539. Perak : .King's 

 Collector 30334. — Distrib. Sumatra. 



Ridley's specimen collected in Johor (Herb. Ridley 4179) has stipules with blunt 

 lobes and the bracts of the involucre are more numerous. It may be a new species, 



18. Mussaenda, Linn. 



Erect or scandent shrubs or undershrubs, rarely herbs. Leaves 

 opposite or in whorls of three, membranous. Stipules solitary or in pairs 

 between the petioles, free or connate, usually deciduous. Flowers in 

 terminal cymes, the bracts and bracteoles deciduous. Calyx-tube oblong 

 or turbinate ; the limb with 5 mostly deciduous lobes, one of them how- 

 ever sometimes large petiolate petaloid (white or coloured), and persis- 

 tent. Corolla funnel-shaped ; the tube elongate, often sericeous outside, 

 the throat always villous, the limb with 5 valvate lobes. Stamens 5, 

 inserted on the throat or below it on short filaments ; anthers linear. 

 Ovary 2-celled, style filiform; stigmas 2, linear; ovules numerous, on 

 -peltate fleshy placentas. Fruit baccate, crowned by the scar of the 

 deciduous calyx. Seeds minute, the testa pitted ; embryo small, in 

 dense fleshy albumen. — Distrib. Species about 40, in the tropics of 

 Asia and of Africa, and in Polynesia. 



None of the calyx-lobes petaloid ... ... 1. M. mutabilis. 



One of the calyx-lobes sometimes petaloid : — 

 Lobes of the calyx persistent in the frait :— 

 Leaves conspicuously hairy on both surfaces : — 

 Corolla not much longer than the calyx : — 



Whole plant densely covered with long soft hair 2. M. Wrayi. 

 Lobes of the calyx not persistent in the fruit : — 

 Leaves conspicuously hairy on both surfaces : — 

 Corolla much longer than the calyx :— • 



An erect shrub ; leaves slightly narrowed to 

 the base; petioles less than '5 in. long ... 



Scandent ; leaves much narrowed to the 

 base ; petioles often as much as 1 in. long 

 Leaves glabrous or nearly so :— 



Leaves oblong or lanceolate, much longer than 

 broad : — 



Leaves with broad rounded or cordate bases ... 

 Leaves much narrowed to the base :— 

 Main-nerves 9 or 10 pairs ... ... 6. M, polyneura. 



Main-nerves 5 or 6 pairs ... ... V. M. glabra. 



Leaves obovate-oblong to elliptic-oblong, about 

 twice as long as broad : — 



Calyx and corolla glabrous or nearly so ... 8. M. oblonga. 



Calyx and corolla pubescent ... ... 9. M. Teysmanniana. 



Imperfectly known species ,. f ,,. ... 10, M, membranacea. 



3. M. macrophylla. 



4. M. villosa. 



5. M. cordifolia. 



