454 A FLORA OF MANILA 
or reddish, 5 to 6 mm long, the seeds plano-convex. (FI Filip pl. 55, 
Paederia tacpo.) 
In thickets, occasional, fl. Oct—-March; common and widely distribcted 
in the Philippines. Endemic. 
15. PLECTRONIA Linnaeus 
Spiny or unarmed, usually erect shrubs or small trees. Leaves opposite. 
Flowers axillary, solitary, fascicled, or umbellate, usually small. Calyx- 
tube short, the limb 4- or 5-toothed or lobed. Corolla-tube narrowly funnel- 
shaped, campanulate or globose, the throat villous, the lobes 4 or 5, reflexed. 
Ovary 2-celled; ovules 1 in each cell. Fruit fleshy, globose to obovoid, 
2- or 1-seeded. (From the Greek “spur,” in allusion to the spines of many 
species.) 
Species about 70 in the tropics of the Old World, 10 in the Philippines. 
Peduncles very short, not as long as the flowev.......,................---- 1. P. horrida 
Peduncles long, slender, pendulous, up to 3 cm in length.. 2. P. peduncularis 
1. P. horrida (Blume) Kurz. 
A shrub or small tree 2 to 5 m high, the branches By pubescent, 
armed with sharp, slender, axillary spines 5 to 10 mm in length. Leaves 
ovate to elliptic-ovate, short-petioled, acute, 1 to 2.5 cm long. Flowers 
axillary, solitary, 5-merous, greenish-yellow or nearly white, about 6 mm 
long, very shortly pedicelled. Fruit ovoid, red, fleshy, about 7 mm long. 
(Fl. Filip. pl. 57, Canthium horridum.) 
In dry thickets, Masambong, near Fort McKinley, etc., fl. MayJage of 
local occurrence in the Philippines. Tenasserin to Malnes. 
2. P. peduncularis (Cav.) Elm. Subiang-daga (Tag.). 
A slender shrub 1 to 8 m high with slender, sharp, axillary spines 
5 to 138 mm long, the branchlets, leaves and pedicels slightly pubescent. 
Leaves ovate to ovate-lanceolate, 2 to 4 cm long, 1 to 1.8 cm wide, base 
acute, apex acuminate or acute; petiole short, about 2.5 mm long. Flowers 
solitary, axillary, pendulous, white, their pedicels slender, 2 to 3 cm 
long, minutely bracteolate near the apex. Calyx small, with 5 acuminate 
teeth. Corolla white, the tube cylindric, 4 mm long, the lobes lanceolate, 
acuminate, reflexed, 1.2 to 1.5 cm long. Fruit obovoid or subglobose, slightly 
compressed, glabrous, greenish-yellow, about 1 cm thick, 8 mm long, fleshy, 
containing 2 seeds. 
In thickets, Masambong, Pasay, etc., fl. July-Dec.; widely distributed 
in the Philippines. Endemic. 
16. PAEDERIA Linnaeus 
Slender, twining, herbaceous vines, with a foetid odor when crushed. 
Leaves opposite, the stipules deciduous. Flowers in axillary and ter- 
minal di- or tri-chotomously branched paniculate cymes. Calyx-limb per- 
sistent, 4- or 5-toothed. Corolla tubular, pubescent, 4- or 5-lobed, the 
margins inflexed, crisped. Anthers 4 or 5, in the corolla-tube. Ovary 2- 
celled; stigmas 2, slender, twisted; ovules 1 in each cell. Fruit globose, 
the epicarp thin, fragile, surrounding the 2, orbicular or oblong, thin or 
coriaceous pyrenes. Seeds 1 in each pyrenes, dorsally compressed. (Greek 
name of a pink-flowered plant.) 
Species 9 or 10 in tropical Asia and Malaya and 1 in Brazil, 2 in the 
Philippines. 
