170 LXX. COMPOSITS. 
outer bracts at base. Corolla salver-shaped, deeply 5-cleft. 
Anthers included, simple at base. Achenes tapering at base, 
silky. Pappus short, crown-like, irregularly cleft or torn.— 
Fl. Cap. iii. p. 55. 
Nearly stemless plants, with a thick, softly-silky rootstock. Leaves ra- 
dical, linear, parallel-nerved, rigid. Flower-stems nearly nude, with a few 
clasping, scale-like leaves, corymbose at summit. Corymbs close or loose ; 
flowers pink or white, rarely yellow.—7 species, dispersed. 
Tripe 2. Eupatortace®. (Gen. 7-10.) 
7. ANISOCH ATA, DC. 
Heads many-flowered, homogamous. Involucre ovate, im- 
bricate, its scales lanceolate, appressed, shorter than disk. 
Receptacle nude. Corolla tubular, deeply 5-cleft. Anthers 
sagittate. Style shortly exserted; branches cylindrical, ob- 
tuse, nearly smooth. Achenes oblong, striate, scarcely downy. 
Pappus of 3-5, narrow-subulate, unequal scales — FZ. Cap. ui. 
pr 5T. 
A. mikanioides, DC., the only species, is a half-climbing or scrambling 
plant, found near Natal. Leaves alternate, petioled, ovate, 3—5-nerved 
at base, coarsely toothed, at length nearly glabrous. Panicle terminal, with 
widely-spreading branches, many-headed. 
8. AGERATUM, Linn. 
Heads many-flowered, subglobose. Involucre loosely imbri- 
cate ; scales acuminate. Receptacle nude. Corolla tubular, 
5-fid. Achenes with a basal callus, 5-angled, narrowed at 
base. Pappus of 5-10, lacerate or pectinate scales.—#7. Cap. 
i. p. 57. 
Herbs, chiefly American.—A. conyzoides, Linn., a common tropical plant, 
often cultivated, occurs about Natal. Leaves ovate, rhomboid or cordate, 
on longish petioles; heads corymbose; flowers lavender blue or white. 
9. ADENOSTEMMA, Forst. 
Heads many-flowered. Receptacle flat, nude, honeycombed. 
Involucral scales short, in a single or double row, connate at 
base, oblong, at length reflexed. Corolla funnel-shaped, 5- 
toothed, villous externally. Style-arms much exserted, di- 
lated. Achenes oblong, bluntly angular, crowned with 3-5 
short, rigid, spreading, gland-tipped bristles.—7. Cap. iii. p. 58. 
Herbs of hot countries. Leaves opposite, petioled, toothed, 3-nerved at 
base. Heads panicled, pedicelled; flowers white-—2 Cape species, from 
Cafiraria and Natal. 
10. MIKANTA, Willd. 
Heads 4-flowered. Receptacle nude. Involucre 4-leaved, 
