828 lxi. onagracEjE. [Jussiaa. 
to i in. long, *25 in. through at top. Seeds ellipsoid polished, 
mahogany brown. Hab. Wet spots, ditches, etc. Common. 
Singapore, Tanglin, Tanjong Katong, Malacca (Griffith), Pulau 
Besar (Maingay) to Kelantan, Chaffing; Kota Bharu. Penang 
(Wallich). Dislrib. India, Java, Borneo, Timor, Phihppines, 
Papua, Australia, China. Native names: Bujong Samalam; 
Pujong Malam; Lakom Ayer. Use: As a poultice for headache. 
J. exaltata Roxb. FI. Ind. ii. 401, is a form with leaves sparsely hairy 
above. It is common in India, and forms approaching it occur here. 
(4) J. viilosa Lam. Encycl. iii. 331. 
A tall densely hairy plant. Leaves lanceolate, narrowed at 
both ends, sessile hairy all over, 3 in. long, 1 in. wide. Ovary 
cylindric hairy. Sepals ovate acute *3 in. long, -r in. wide at base, 
hairy outside. Corolla 75 in. across; petals oblong oblanceolate 
retuse, *25 in. across. Fruit thickly cylindric, base narrowed, 
hairy/ 1*25 in. long, -25 in. through. Seeds dark red ellipsoid, 
grooved. Hab. Wet spots, Singapore, Alexandra Road. Dislrib. 
S. India, Cambodia, Borneo, Timor, Philippines, Australia. 
(5) J. speciosa Ridl. Journ. Bot. 1921, p. 259. 
A plant 4 to 6 ft. tall, densely softly tomentose-hairy all over. 
Leaves lanceolate broad, narrowed to both ends 4 in. long, 1 in. 
wide; nerves over 20 pairs; petioles short, distinct, -25 i n - l°pg- 
Sepals triangular acuminate, cuspidate, densely hairy outside 
•5 in. long, -25 in. wide at base. Corolla 3 in. across ; petals -25 in. 
across, obovate. Capsule obconic, densely softly hairy and 
crowned by the large sepals now -9 in. long. Seeds ellipsoid not 
grooved, red. Hab. Ditches and swamps, local and not common. 
Singapore, Balestier Plain, Serangoon Road. Dislrib. South India, 
Ceylon. 
2 . LUDWIGIA. Linn. 
Erect or decumbent herbs. Leaves alternate. Flowers 
axillary, sessile or nearly so. Calyx-tube slender, cylindric, lobes 3 
to 5, persistent acute. Petals 3 to 5, epigynous, yellow, very 
small. Stamens as many. Ovary inferior 4- or 5-celled; ovules 
many in two or more rows; style simple. Stigma capitate. 
Capsule linear or oblong 4- to 5-celled breaking up irregularly. 
Seeds numerous, obovoid smooth not corky. Species 20. Tem¬ 
perate or tropical regions. Differs from Jussicea simply in the 
smaller number of the stamens. 
Capsule oblong, thick ; seeds in several rows . . (1) L. parviflora 
Capsule very slender, cylindric; seeds in 1 row . . (2) L. prostrata 
(1) L. parviflora Roxb. Hort. Beng. 11 ; Clarke, Lc. ii. 
King, lx. 13. , 1 
Erect glabrous herb 6 to 12 in. tall. Leaves lanceolate to 
linear-oblong narrowed to both ends 1 to 3 in. long, *25 to -5 in. 
