194 LXX. COMPOSITS. 
bricate in many rows, aristate, recurved at the points. Re- 
ceptacle nude. Achenes oblong, beakless, sometimes with a 
tuft of hairs at base, sometimes nude, glabrous or pilose. 
Pappus of rough bristles in a single row; or of bristles and 
short, serrulate scales alternating —//. Cap. i. p. 291. 
Undershrubs. Leaves decurrent or sessile, linear or narrow (rarely ovate- 
lanceolate), rigid, with revolute edges, tomentose beneath. Heads terminal, 
solitary ; rays white or purple.—6 species, all, but C. Capensis, Kastern. 
99. ANTITHRIXTIA, DC. 
Heads many-flowered, radiate, the ray-flowers ligulate, flat, 
female; disk-flowers tubular, 5-toothed. Involucre imbricate, 
the scales linear-oblong, with dry, obtuse pomts. Receptacle 
nude. Achenes terete, glabrous, with a small pubescent stipe, 
subrostrate. Pappus in one row, of very many, rigid, rough- 
ish bristles, slightly united at base.—F1. Cap. ui. p. 298. 
A. flavicoma, DC., the only species, is found on the Camiesberg. A 
small, dwarf, branched and twiggy shrub. Leaves opposite, linear, short, 
obtuse, woolly above, glabrate beneath. Heads terminal solitary ; disk and 
ray yellow. 
100. LEYSSERA, Linn. 
Heads many- or few-flowered, radiate ; ray-flowers ligulate, 
female, with shorter ovaries ; disk-flowers tubular, 5-toothed, 
bisexual. Involucre imbricate, of dry scales. Receptacle 
subfimbrilliferous. , Achenes terete, shortly beaked, with a 
terminal areole. Pappus in one row; in the ray-flowers of 
short scales ; in the disk, of long, plumose bristles, alternating 
with small scales.—F7. Cap. ii. p. 393. 
Undershrubs or herbs. Branches slender, leafy, ending in one-headed 
peduncles ; leaves linear, often tufted ; flowers yellow.—s species, from the 
Western and Northern districts. 
101. ROSENIA, Thunb. 
Heads many-flowered, radiate ; ray-flowers ligulate, female ; 
disk-flowers tubular, bisexual, 5-toothed, the teeth erect. 
Involucre imbricate, the scales dry, membrane-edged. Re- 
ceptacle bearing conduplicate, scarious paleew. Achenes beak- 
less, glabrous ; of the ray 3-cornered, 3-ribbed; of the disk 
terete, furrowed. Pappus of the disk-flowers in two rows, 
the outer of many short, broad scales, the inner of 2 long 
bristles ; of the ray of many short scales.—Fl.-Cap. iii. p. 
294. 
A rigid shrub. Leaves minute, opposite, decussate. Heads terminal, 
solitary.—Only found by Thunberg ; a very rare and little-known plant. 
102. NESTLERA, Spreng. 
Heads many-flowered, radiate ; ray-flowers female, ligulate 
