98 XLIV. SAXIFRAGER. 
Tribe 4?. Brexiem. Shrubs, with alternate, exstipulate leaves. Sta- 
mens as many as the petals. Ovary superior, 5-angled, 5-celled. Seeds 
without albumen. 
5. Brexia. Flowers 5-parted, sepals and petals coriaceous, imbricated. 
Oavry surrounded by a 5-lobed, imbricate disk. Leaves oblong or obovate, 
entire. 
TRIBE 1. SAXIFRAGER. 
1. VAHLIA, Th. ; 
Calyx-tube adhering to the ovary ; limb 5-parted, persistent, 
valvate in bud. Petals 5, spreading, entire, epigynous. Sta- 
mens 5. Ovary inferior, 1-celled, with 2 many-ovuled pla- 
centas pendulous from the summit of the cavity; styles 2, 
spreading; stigmas capitate. Capsules membranous, opening 
between the styles. Seeds minute, very many.— FV. Cap. i. p. 
306. 
V. Capensis, Th., our only species, is a much-branched, half-woody 
plant, 6 inches to 2 feet long, more or less hairy or smooth; leaves linear 
or lanceolate ; peduncles 2-flowered, shorter than the leaves.—Found in the 
West and North-West districts, and Namaqualand. 
Tripe 2. Cunonrem. (Gen. 2-3.) 
2. CUNONTIA, Linn. 
Calyx free, 5-parted, deciduous. Petals 5, oblong, entire. 
Stamens 10. Ovary free, 2-celled, conical, with many-ovuled, 
sutural placentas ; styles 2, diverging; stigmas simple. Cap- 
sules conical, 2-horned, 2-celled, separating from base to apex, 
from a free, placentiferous column. Seeds many, compressed, 
with a narrow membranous wing.—FV. Cap. i. p. 306. 
C. Capensis, Linn., the only species, is a large shrub or small tree, com- 
mon throughout the colony, glabrous in all parts. Leaves pinnate; pinne 
in 2-4 pairs, lanceolate, sharply serrate. Stipules broadly ovate, deciduous. 
Racemes axillary, opposite, very many-flowered ; flowers white. 
3. PLATYLOPHUS, Don. 
Calyx free, 4-(rarely 5-)parted, persistent, valvate in bud. 
Petals 4-5, 3-fid. Stamens 8-10, on the outer edge of a 
fleshy, perigynous disk. Ovary free, 2-celled ; ovules 2 in each 
cell, collateral, pendulous; styles 2; stigmas simple. Cap- 
sule turgid at base, compressed above, membranous, 2-celled, 
at length splitting; cells 1-seeded —FV. Cap. ii. p. 307. 
P. trifoliatus, Don, the only species, is a tree 40-50 feet high, glabrous 
in all parts, extending at least as tar east as Uitenhage, more frequent in the 
west. Leaves long-petioled, pinnately 3-foliolate ; leaflets lanceolate, mi- 
nutely toothed. Panicles axillary, much-branched ; flowers small, white, 
almost always 4-parted. 
