634 CXXII, EUPHORBIACEZ (HUTCHINSON). [Andrachne. 
branous, glabrous. Petals small. Disk-glands very small. Stamens 5; 
filaments very short. Rudimentary ovary small, tripartite, glabrous. 
Female flowers solitary, about twice the size of the males; pedicels 
about 1 lin. long, glabrous. Sepals 5, ovate, 14 lin. long, ? lin. broad, 
l-nerved, keeled on the back, margin membranous and transparent, 
glabrous. Disk spreading, toothed. Ovary subglobose, very slightly 
trilobed, minutely beaded ; styles spreading, free to the base, bipartite, 
segments linear, very slightly swollen at the tips. Capsule slightly 
depressed-globose, about 14 fin. in diam., reticulate. Seeds subtri- 
quetrous, convex and minutely and closely pitted on the back.—Miill. 
Arg. in DC. Prodr. xv. ii. 235; Boiss. F]. Orient. iv, 1138; Sibth. Fl. 
Grec. x,t. 953; Reichb. Ic. Fl. Germ. v. t. 153; Hook. f. Fl. Brit. 
Ind. v. 284. A. rotundifolia, C. A. Meyer in Eichw. Pl. Casp. 18, t. 20. 
A. somalensis, Pax in Engl. Jahrb. xv. 522. 
Nile Land. Somaliland: Ahl Mountains, near Meid, 4000 ft., Hilde- 
brandt, 1457! 
Occurs also in Spain, the Cape Verde Islands, eastwards through N. Africa, 
Arabia and Afghanistan to India. 
20. UAPACA, Baill.; Benth. et Hook. f. Gen. PI. iii. 282. 
Flowers dicecious. Petals absent. Male flowers aggregated ina 
dense globose head enclosed in a calycine involucre of 5-8 imbricate 
bracts. Calyx subeampanulate or turbinate, dentate or 5—6-lobed. Disk 
0. Stamens 4-6; filaments shortly exserted; anthers erect ; cells con- 
tiguous, parallel, dehiscing longitudinally. Rudimentary ovary usually 
expanded at the top. Female flower solitary and sessile 1n each 
involucre, the latter pedunculate. Calyx very short and disk-like, 
entire or sinuately lobed. Ovary 3- (rarely 2- or 4-) celled ; styles thick, 
recurved, much-branched; ovules 2 in each cell. Fruits indehiscent, 
globose; exocarp bard, containing 3-4 pyrenes. Pyrenes yellowish, 
obliquely ellipsoid, with 2 longitudinal grooves on the back. Seed 10 
each pyrene large, compressed on one side; albumen fleshy ; embry ¥ 
straight; cotyledons flat and broad. — Trees with stout bees 
stems often provided with aérial roots. Leaves alternate, pees 
crowded towards the ends of the branchlets, entire, penninerved. Male 
and female heads usually stalked. 
About 23 species, 7 from Madagascar and the following; many 4re wt 
imperfectly known and described from incomplete material. 
Leaves sessile or subsessile. 
Leaves long-pilose with erect hairs below ; tertiary 
nerves lax and branched, not parallel . : . 1. U. pilosa. 
Leaves scurfy-pubescent with interlacing hairs ‘lor 
below ; tertiary nerves parallel. : ‘ . 2. U. Gossweilert. 
Leaves petiolate. 
Leaves floccose, woolly-pubescent, pilose or pilose 
only on the midrib below. ‘barica 
Leaves mostly unequal-sided at the base. 8 rr 
