MORACEAE 177 
or nearly glabrous, acuminate, deeply pinnately 8- to 8-lobed, the lobes 
lanceolate, acuminate; stipules large, deciduous. Male receptacle narrowly 
oblong-obovoid, cylindric, up to 15 em long, yellowish. Fruit globose to 
ellipsoid, up to 20 em in length, green, covered with the slightly projecting, 
rounded to conical tips of the anthocarps, the individual ones usually 5 
mm in diameter or less, seedless (A. rima, Fl. Filip. pl. 267), or with 
ovoid to subglobose seeds about 2.5 cm in diameter (A. camansi, FI. .Filip. 
pl. 457.) 
Not uncommon in cultivation, fl. all the year; throughout the Philippines, 
but neither form indigenous. Widely distributed in various forms in Ma- 
laya and Polynesia, variable in its fruit characters. 
3. STREBLUS Loureiro 
Trees with somewhat milky juice. Leaves alternate, harsh, rather finely 
toothed. Flowers axillary, small, dioecious or monoecious. Male flowers 
in small, short-peduncled heads. Sepals 4, imbricate. Stamens 4, in- 
flexed in bud. Rudimentary ovary somewhat dilated above. Female 
flowers bracteate, solitary, or 2 to 4 together, pedicelled. Ovary straight, 
the style-arms elongated. Fruit fleshy, surrounded by the accrescent 
sepals, 1-seeded. (Greek “crooked” in reference to the often crooked 
branches.) 
Species 2, India to Malaya, 1 in the Philippines. 
1. S. asper Lour. Calios (Tag.); Alodig (Il.). 
A rigid, densely branched tree 4 to 15 m high. Leaves oblong-ovate 
to subrhomboid, very scabrid, 4 to 12 cm long, finely toothed, obtuse to 
acuminate, base narrowed. Male heads solitary or in pairs, 4 to 7 mm in 
diameter, short-peduncled, globose, greenish-yellow or nearly white. 
Female flowers peduncled, usually in pairs, green, the sepals accrescent 
and nearly enclosing the fruit. Fruit ovoid, pale-yellow, 8 to 10 mm long, 
the pericarp soft, fleshy, the seed 5 to 6 mm long, ovoid. (FI. Filip. pl. 171.) 
Very common, fil. most of the year; throughout the Philippines. India 
to China and Malaya. 
4. CASTILLOA Cervantes 
Trees with abundant latex, and alternate, shortly petioled, large, entire 
or minutely toothed, distichous leaves. Male flowers: Perianth none. 
Stamens numerous, scattered among the numerous bractlets. Female 
flowers: perianth 38- to 6-lobulate. Ovary adnate to the perianth, stigma 
2- to 5-branched; ovule solitary. Fruiting perianth enlarged, dry or fleshy, 
more or less adhering to the receptacle and to each other, and enclosing 
the rounded to oblong nutlets (achenes). (In honor of J. del Castillo, a 
Mexican pharmacist and explorer.) 
Species 10, western America from Mexico to Peru and Bolivia, a single 
introduced one in the Philippines. 
*1. C. ELASTICA Cerv. Castilloa Rubber Tree. 
A tree reaching a height of 15 m, the branches spreading or depressed, 
the young one densely hairy. Leaves distichous, oblong, 20 to 45 em long, 
8 to 15 em wide, acuminate, base cordate, rough, pubescent, entire, the 
nerves 17 to 20 pairs, prominent. Male receptacles shortly stalked, 1 to 
1.5 em long, 2 to 2.5 cm thick, lobed, the imbricating involucre-scales nu- 
111555——12 
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