XXXVI. CELASTRINER. oe 
3. PTEROCELASTRUS, Meisn. 
Floral characters nearly as in Gymnosporia. Capsules carti- 
laginous, 3-6-winged, 1-3-celled, loculicidally 3-valved, slowly 
dehiscing, the valves septiferous in the middle; cells 1-2- 
seeded. Seeds with a thin, membranous arillus, albuminous.— 
Fl. Cap. i. p. 461. 
South African shrubs, with alternate, leathery, quite entire leaves and 
axillary, small, white, cymose or tufted flowers.—6 species, dispersed. 
4. CATHA, Forsk. 
Calyx 5-lobed, small. Petals 5, erecto-patent. Stamens 5, 
on the margin of the disk; filaments subulate; anthers 2- 
parted. Disk thin, with an undulate margin. Ovary ovoid, 
immersed in the disk, free, 3-celled ; style short, thick ; stigmas 
3; ovules in pairs, erect. Capsules linear-oblong, 3-celled, 3- 
valved, 1-3-seeded. “ Ripe seeds winged.’—Methyscophyllum, 
Fl. Cap. i. p. 463. 
C. edulis, Forsk. (= Methyscophyllum glaucum, ¥. and Z.), the “ Bosjes- 
439 
man’s-thé” of the colonists, grows in North and South Africa and in Arabia. 
The leaves, chewed to excess, are intoxicating. Leaves opposite, glaucous, 
lanceolate, acuminate, repando-serrate, with revolute margins, netted-veined. 
Pedunceles axillary, dichotomous, short. 
5. CATHASTRUM, Turcz. 
Calyx 5-parted, the lobes rounded, fimbriate. Petals 5, 
obovate, ciliolate, revolute. Stamens 5, inserted under the 
margin of the disk ; filaments thickish, recurved ; anthers sub- 
cordate, affixed to the broadish apex of the filaments. Disk 
thin, obtusely 5-angled. Ovary sessile on the disk, narrowed 
at base, oblique, free, 1-celled; style short, stigma thick, uni- 
lateral, peltate ; ovules 4-8, in two rows, ascending.—#7/. Cap. 
1. p. 526. 
C. Capensis, Turcez., the only species, is a glabrous shrub, with opposite, 
petioled, oblong or linear-oblong, leathery, obtuse, undulate, entire leaves, 
and short, axillary cymes of small flowers. The fruit is unknown. It in- 
habits woods in Uitenhage. 
6. HARTOGIA, Thunb. 
Calyx 4-5-fid. Petals 4-5, spreading. Stamens 4-5, be- 
tween the lobes of the disk. Disk annular, 4—5-lobed. Ovary 
sessile, scarcely confluent with the disk, pyramidal, 2-3-celled, 
tapering into a thick style ; stigma obtuse ; ovules solitary in 
each cell, erect. Fruit ovoid, dry, indehiscent. Seed without 
albumen.—FV. Cap. i. p. 464. 
H. Capensis, Th., the only species, is a shrub with opposite, leathery 
glaucous leaves, with revolute, serrulate margins. Cymes axillary ; flowers 
small, white. Found in the Western and middle districts. 
