60 COMPOSIT# (Harv.) | Alciope. 
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Rays neuter, with glabrous, abortive achenes (36) Cypselodontia. /2% 
Rays female ; all the achenes hairy. Pappus double: 
Pappus of several toothed bristles, the 
we ALE 9 ol a ee ere eee a 
Pappus of broad scales, all or half of 
them awned Sis Nye Bove, eed: AGO) SICAORI: /24 
(3). Fl.-heads heterogamous, either discoid or very imperfectly radiate ; the mar- 
ginal-fl. female, filiform, or with very short, unilabiate or bilabiate corollas (im- 
perfect rays): 
Pappus double ; outer of short scales, inner of 
Pappus single, of few or many slender bristles : 
Marginal-fl. imperfectly ligulate (unilabiate) : 
Rays white ; disc yellow 
(37) Minurothamnus. /24 
(34) Pulicaria. JU 
(19) Erigeron. . §, JS6 
Rays yellow, as well as the disc ... ... (20) Nidorella. - - §% 
Marg.-fi. filiform, ina single row. Lys. heath- 
like pees ber soe Sec. nay ae ois hag) pean 2 fe 
Marg.-fl. filiform, in many rows. Lys. broad. 
Anthers without tails ... ... (26) Conyza. \) Mf 
Anthers tailed at the base (32) Blumea. 419 
Pappus none, or of very minute, flat scales : ; 
Recept. flat. Disc-fl. 5-toothed, sterile ... (31) Denekia. 18 
Recept. conical. Disc-fl. 4-toothed ... ... (27) Dichrocephalaa 4% 
(4). Fl.-heads dioecious, discoid ; male and female flowers. in separate heads, on 
distinct roots. (Balsamic shrubs or trees) : - 
Achenes woolly, without pappus ... 
vs es «+. (30) Tarchonanthus. /7 
Achenes pubescent, with copious, bristle-shaped 
pappus 2. 2 ee ee a ee uS- 
(5). Fl.-heads homogamous, discoid ; all the flowers tubular and perfect : 
Recept. covered with rigid scales (palee) ... ... (12) Amellus. LI 
Recept. nude : - 
Anthers not tailed at base : 
Pappus bristle-shaped, wniform : 
Pappus uniseriate, very slender, de- 
ciduous se -eée - ven: gee sev, (28) Chrpuocoma.G -° 9@ 
Pappus in many rows, rigid, per- - 
sistent ... é 
Veep tae pra vs yi, GS” 
Pappus double, the owter of short, narrow : 
scales, inner of long, rough bristles ... (22) Fresenia. — G2 
Anthers tailed at base: pappus copious, of ‘ 
many bristles, or of scales and bristles ... (35) Pegolettia, 422 
(6). Fl.-heads compound; many small, discoid heads united on a common recep- 
tacle, with a general involucre. Pappus none ... (28) Spheranthus. ff8 
Sub-Tribe 1. AsterE#. Heads sometimes homogamous and discoid, but mostly 
heterogamous, radiate; the ray-fl. female ; disc-fl. bisexual, rarely abortive. Anthers 
without tails. (Gen. 1-24.) 
XI. ALCIOPE, DC. 
Heads many-flowered, radiate; ray fl. ligulate, uniseriate, female, 
with abortive stamens; disc fl. tubular, 5-cleft, regular, perfect. Recept. 
broad, naked. Jnvol. imbricate, its scales linear, appressed. Style 
deeply bifid, its branches linear, divergent, semi-terete, obtuse, dorsally 
puberulous. Achenes linear-oblong, angular, sub-compressed, pubes- 
cent. Pappus bristle-shaped, in many rows; the bristles slender, rough, 
deciduous. DC. Prodr. 5, p. 209. 
Branching, erect undershrubs, natives of S. Africa. Stems covered with dense, 
white wool. Leaves alternate, petioled, entire or denticulate, woolly beneath. 
