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



167 



small, stipules acute or bristly. Flowers small, often white, in axillary 

 or terminal dichotomous often paniculate cymes, sometimes solitary. 

 Calyx obovoid or turbinate ; the mouth 4- rarely 5- toothed ; the teeth in 

 fruit erect, often distant and sometimes with interposed processes. 

 Corolla funnel- or salver-shaped, with a long or short tube, or rotate : 

 its lobes 4, rarely 5, obtuse, valvate. Ovary 2-celled ; ovules numerous, 

 the placentas attached to the septum ; style filiform ; stigmas 2, oblong. 

 Capsule small, crowned by the calyx-teeth, usually membranous, sub- 

 globular, often compressed, didymous or ridged, loculicidal at the apex, 

 many-seeded, rarely indehiscent. Seeds globose or angled, not winged, 

 smooth or pitted ; embryo clavate, iu fleshy albumen.— Distrib. Species 

 about 80 ; tropical and sub-tropical, mostly Asiatic. 



Leaves in one or more whorls near the base of the stem, 



elliptic, blunt ... ... ... ... 1. 0. nudicaulis. 



Leaves scattered along the whole length of the stem : — 

 Flowers in terminal or axillary few-flowered cymes not 

 much longer than the elliptic-oblong sub-acute leaves : 

 ripe capsules about "15 in. in diam. ... ... 2. 0. panicidata. 



Flowers in terminal or axillary dichotomous lax cymes, 

 the branches and flower- pedicels long and filiform ; leaves 

 narrowly oblong-lanceolate, much narrowed to tlie base 

 and apex: ripe capsules less than '1 in. in diam. ... 3. 0. dichotoma. 



Flowers 2 to 4 on a slender axillary pedicels or solitary on 

 long pedicels; capsule more than *1 in. broad; leaves 

 linear ... ... ... ... ... 4. 0. corymbosa. 



Flowers solitary in the leaf -axils : — 



Some of the flowers solitary, always on long slender 



pedicels ; leaves linear ... ... ... 4. 0, corymbosa. 



All the flowers solitary and on long slender pedicels, 



leaves linear ... .,, ... ... 5. 0, Heynei. 



All the flowers sessile : — 



Leaves narrow, many times longer than broad ... 6. 0. diffusa. 



Leaves rotund-ovate to elliptic not much longer than 



broad ... ... ... ... ... 7. 0. trinervia. 



1. Oldenlandia nudicaulis, Roth Nov. Sp. 95. A small erect 

 glabrous annual, 4 to 6 inches high, drying green; stem very slender, an 

 inch or two long, minutely scurfy-puberulous, bearing several whorls of 

 3 or 4 thin, sparsely and minutely scaly, elliptic, rather blunt leaves 

 abruptly narrowed at the base and inserted on the stipules by very 

 short broad petioles, and with about 4 pairs of faint ascending main- 

 nerves, from *7 to 1'5 in. long and from *35 to '65 in. broad. Cymes long, 

 slender, laxly corymbose, simple or branched, minutely bracteolate, 

 solitary or several together from the apex of the stem, 1*5 to 35 in. long 

 (half of the length being peduncle). Flowers '15 in. long, on capillary 

 J. ii. 24 



