180 A FLORA OF MANILA 
cious or dioecious. Male flowers: Calyx equally or unequally toothed or 
divided. Petals none. Stamens as many as the calyx-lobes or fewer, in- 
flexed in bud. Female flowers: Perianth much as in the male flowers. 
Ovary superior, 1-celled; style or stigma solitary; ovule one, erect. Fruit 
an achene. F 
Genera 44, species about 500, of wide distribution, but chiefly tropical, 
21 genera, and about 130 species in the Philippines. 
1. Erect shrubs or trees. ‘ 
2. Flowers. in astillary fasticles......ii.2220002 1. Pipturus 
2. Flowers paniculate or cymose. 
3. Vegetative parts with stinging hairs; fruit fleshy........ 2. Ldportea 
3. No stinging hairs; fruit dry................ ah inileencrt esi 7 3. Boehmeria 
1. Spreading or erect herbs. 
2. Flowers cymose. 
3. A coarse, erect, branched herb with large leaves, the vegetative parts 
APECD STU CUS OTS sec cone sorte ses alah eee aco eee 4, Fleurya 
38. A very small herb with small leaves and no stinging hairs.... 5. Pilea 
2. Flowers in axillary fascicles, or on sessile or peduncled fleshy re- 
ceptacles. 
3. Flowers on a fleshy sessile or peduncled receptacle, involucrate; 
leaves strongly inequilateral........2.0.......0....:.:c-:eeceeee- 6. Elatostema 
3. Flowers in axillary fascicles, not involucrate; leaves equilateral or 
WOAPIF * B00... 29. LS Ee Pe ee ee 7. Pouzolzia 
1. PIPTURUS Weddell 
Erect dioecious shrubs or trees. Leaves alternate, 3- or 5-nerved, the 
stipules bifid. Flowers small, in axillary clusters or the clusters spicately 
arranged. Male flowers: Perianth 4- or 5-fid, lobes valvate. Stamens 
4 or 5. Female flowers on a somewhat fleshy receptacle. Perianth ovoid, 
narrowed to a minute mouth. Ovary adherent to the perianth; stigma 
elongated. Achenes small, surrounded by the accrescent fleshy perianths, 
forming a soft and fleshy fruit. (Greek “to fall” and “tail,” in allusion to 
the inflorescence of some species.) 
Species about 12, Mascarene Islands to Malaya, Australia, and Polynesia, 
6 in the Philippines. . 
1. P. arborescens (Link) C. B. Rob. (P. asper Wedd.). Dalunot (Tag.). 
A dioecious shrub or small tree 3 to 5 m high. Leaves ovate, 7 to 18 
em long, 8 to 10 em wide, sharply acuminate, base rounded or somewhat 
cordate, the margins toothed, the upper surface green, only slightly pubes- 
cent, a little scabrid, the lower surface pale, rather densely and softly 
pubescent. Male flowers in dense, axillary fascicles, the styles greenish- 
white, exserted. Female flowers small, greenish, in dense, axillary, hemi- 
spheric heads 5 ¢o 6 mm in diameter, the styles long-exserted. Fruit white, 
very soft and fleshy, depressed-globose, 1 cm in diameter or less, cf many 
small achenes immersed in the fieshy perianths. (FI. Filip. pl. 371.) 
Common in thickets, fl. all the year; throughout the Philippines. Borneo. 
2. LAPORTEA Gaudichaud 
Trees or shrubs with few to many, often minute, stinging hairs. Leaves 
ample, entire or toothed. Flowers small, monoecious or dioecious, glomer- 
ate, in axillary panicles. Male flowers: Sepals 4 or 5. Stamens 5, in- 
