EUPHORBIACBAE 293 



* 8. A. HISPIDA Burm. 



A shrub 0.5 to 3 m high. Leaves broadly ovate, 10 to 20 cm long, 6 to 

 16 cm wide, acuminate, base rounded, slightly cordate, margins rather 

 coarsely toothed. Spikes unisexual, the pistillate ones dense, cylindric, 

 pendulous, purple, up to 40 cm long, about 1 cm in diameter. Ovary densely 

 villous; styles divided into many, filiform, slender, elongated branches. 



Frequently cultivated for ornamental purposes, fl. all the year, intro- 

 duced; probably a native of Malaya or of Polynesia. A striking ornamental 

 on account of its dense, cylindric, pendulous purple spikes; cultivated in 

 all tropical countries. 



* "4. A. WILKESIANA Muell.-Arg. (A. tricolor Seem.). 



Ah erect branched shrub 2 to 5 m high. Leaves broadly ovate, 10 to 18 

 cm long, 6 to 12 cm wide, acuminate, base rounded or acute, not cordate, 

 very sparingly hairy on the nerves or quite glabrous, variously mottled 

 with shades of red, purple, and olive, the margins distinctly and fegularly 

 toothed. Spikes purplish, slender, the staminate ones up to 20 cm long, 

 less than 5 mm in diameter, interrupted, the flowers glomerate. 



An introduced and cultivated species, very ornamental on account of its 

 variously colored leaves, fl. all the year. A native of the Fiji Islands, now 

 cultivated in most tropical countries. 



6. A. atlpulacea Klotz. 



An erect, monoecious or dioecious shrub or small tree 2 to 6 m high, 

 glabrous ^or nearly so. Leaves qblong-ovate to ovate-lanceolate, 10 to 20 

 cm long, 5. to 9 cm wide, shining, long-acuminate, base usually rounded, 

 3-nerved, margins crenulate. Spikes axillary, solitary, the staminate ones 

 Blender, greenish, dense, 2 to 2.6 mm in diameter, 10 to 20 cm long, the 

 pistillate ones stouter, somewhat interrupted, the ovate bracts subtending 

 the flowers greenish, toothed, 3 to 4 nun long; pistils purplish. 



In thickets, San Pedro Macati, fl. Sept., and probably in other months; 

 throughout the Philippines. Malaya to New Guinea and Samoa. 



16. HEVEA Aublet 



Trees with abundant milky sap and long-petioled, 8-foliolate leaves, the 

 petioles glandular at the apex; leaflets entire, thin, penninerved. Flowers 

 apetalous, monoecious, small, cymose, the cymes paniculate, the central 

 flowers of each cyme usually female, the others male. Calyx 6-toothed oi: 

 lobed. Male flowers: Stamens 6 to 10; filaments united; anthers 1- or 

 2-verticillate. Disk-glands 6, small, free or united. Female flowers with 

 a 3-celled ovary; ovules 1 in each cell; stigma thick, sessile or nearly so. 

 Seeds large, subglobose to oblong. (From the Carib name of some species.) 



Species about 7, in the Amazon region, Guiana, etc., 1 now cultivated in 

 many tropical countries. 



* 1. H. BRASILIENSIS (HBK.) Muell.-Arg. Para Rubber Tree. 



A nearly glabrous tree reaching a height of 20 m. Leaflets 10 to 20 

 cm long, elliptic, elliptic-lanceolate, or oblong-obovate, narrowed to the base, 

 acuminate, about as long as the petioles. Panicles about one-half as long 

 as the leaves, pyramidal. Flowers white-tomentose. Stamens 10, 2- 

 seriate, the staminal-column long-produced above the anthers. Capsule 

 large. Seeds oblong, spotted, 2.6 to 3 cm long. 



Immature specimens cultivated in Singalon; of recent introduction in 

 the Philippines. 



