Corymbium. ] COMPOSIT (Haryv.) 55 
VI. CORYMBIUM, Linn. 
Heads 1-flowered. Jnvol. cylindrical, of two opposite channelled 
scales, one clasping round the other, with 2~3 very small, exterior 
bracts at base, Cor. salver-shaped, deeply and equally 5-cleft. Anthers 
included, simple at base. Stigmata 2, filiform, equally hispid. Achenes 
attenuated at base, densely clothed with long, straight, silky hairs. 
Pappus short, crown-like, irregularly cleft or fimbriate. DC. Prodr. 5, 88. 
Herbaceous, nearly stemless plants, all natives of S. Africa, their thick rootstock 
clothed with long, soft, silky hairs, Leaves radical, linear, parallelly many-nerved, 
rigid. Flowering stems nearly naked, with a few clasping, small leaves often re- 
duced to scales, corymbose at the summit. Corymbs loose or close, compound, each 
branch ending in an involucre. Flowers pink or white, rarely yellow.—Name from 
kopuuBos, a corymb, because the inflorescence is corymbose. 
1, Stems, leaves, and involucres glabrous : 
Nerves of the leaves prominent ; margin thickened, smooth : 
Nerves only 3, distant «0... wee eee (1) letifolium, 
Nerves numerous, close-placed ... ... 1... ... a. (2) Rervosum. 
Nerves of the leaves immersed or scarcely prominent : 
Nerves 1-3; corymb loosely branched ... ... ... (3) glabrum. 
Nerves several ; corymb very densely crowded... (4) cymosum. 
2. Stems and involucres scabrous; leaves glabrous ... ... ... (5) seabrum, 
3. Stems and /eaves hairy and glandularly muricate : : 
Leaves linear, acute, elongate ... 1... 21... ... +. (6) villosum. 
Leaves broadly lanceolate, tapering to bothends ... ... (7) congestum. 
1. C, latifolium (Harv.); glabrous; stem compressed, smooth, much 
longer than the leaves; leaves broadly lanceolate, linear or oblong- 
linear, with 3 distant, prominent nerves and thickened margins; corymb 
loosely much branched; invol. scales smooth. 
Has. Vanstaadensberg, Uit., Zeyher! No. 2737 (and 303). (Herb. Sd., Hk., D.) 
This has broader and shorter leaves, and a laxer inflorescence, than C. nervosum, 
from which it more especially differs in never having more than 3 nerves, even in 
its broadest leaves. Leaves 6-8 inches long, 4-1 inch wide, sometimes falcate. 
Van. 8. subulifolium; leaves very narrow-subulate, convolute-terete. Zey./ 2736. 
Has. Moist, sandy places, from Capetown to Uitenhage, common; var. B. Uit. 
Zey.! Grahamstown, &c. Mrs. F. W. Barber. (Herb. D., Sd., Hk., &c.) 
Root stock robust, densely woolly. Leaves 10-14 inches long, 2~5 lines wide, 
microscopically granulated, yellow-green. Stems scarcely taller than the radical 
leaves, with 2-3 clasping, cauline leaves. Flowers pink or purple. Var. 8. has 
leaves almost as narrow as those of C. scabrum, B. filiforme. 
3. C. glabrum (Thunb. 729) ; glabrous ; stem angular, smooth ; leaves 
broadly-linear, subacute, flat, with 1-3 impressed or immersed, stria-like 
nerves, and rough margins ; corymbs loosely much-branched ; invol. 
scales smooth. DC. l.c. FARE A 29 HL 
Has. Cape, Th. ; nr. Capetown, £.Z./ Wynberg, Dr. Wallich! (Hb. Sd., D., Hk.) 
Often confounded with the preceding, from which its immersed (not prominent) 
