* 
188 composit& (Harv.) [Athanasia. 
scattered, either entire, toothed, lobed or pinnati-partite, varying in shape on the 
same branch or root. Pubescence very variable. Heads corymbose, rarely solitary. 
Flowers yellow, There is no difference in habit among the species of the above 
combined genera, except in Holophyllum, which consists of a single species having 
a leafy involucre. The species are very variable, and some of them difficult to fix 
natural limits to; perhaps I have retained too many. The name is compounded of 
a, negative, and Bayaros, death; because the flower-heads are dry and persistent. 
I. Hymenowerts (Cass.), nv. scales imbricated, scarious, the outer ones small. 
Pappus of several short, flat, acute scales. (Sp. 1-8.) 
Flower-heads small, each containing 3-5-7 flowers : 
Leaves pinnatisect, lobes long, linear; inv. glabrous _—_(1) parviflora. 
Leaves some entire, some 1—2- toothed or pinnatisect, lobes short : 
Inv. pubescent ; pappus very short, ciliate ... (2) incisa. 
Iny. glabrous ; pappus of palmatifid,f flat scales (3) schizolepis. 
Leaves all undivided, linear... (4) indivisa. 
Flower-heads many-flowered (20~50-fl.) : 
Recept. flattish.—Lvs. sie = — 
WOME 2 (5) punctata. 
Recept. conical : 
Leaves oblong-lanceolate, softly hairy, entire or 
toothed ... (6) Dregeana, 
Leaves ovate, sharply ‘serrate, glabrous ; : “twigs 
cobwebby (7) leucoclada. 
Lys. jira paride lobes linear; twigs ‘pubescent (8) coronopifolia. 
Ij. Hotopnytium (Less.). Outer inv. scales leaf-like, as long as the inner scales 
and the dise-flowers. Pappus of many short, swollen, brittle, jointed hairs. 
More or less villous; leaves seine obovate or roundish ; ; 
heads few, many-flowered reduces des wes: > (9) Cpitata, 
Ill. Ev-atnanasta. Inv. seh ‘imbeioated, scarious, the outer ones small. Pap- 
pus of many short, swollen, brittle, jointed hairs. (Sp. 10-30.) 
FlL-heads oblong or oval, 10-25- (rarely 35-) flowered : 
Corymb much branched, densely many-headed : 
Tomentose ; leaves flat, 3-5-forked or pinnatifid, 
the upper entire... ... (10) hirsuta, 
Tomentose or glabrous ; lvs. linear, ‘semi-terete, 
mostly entire ... .. (11) filiformis, 
Corymb slightly compound o or simple, loosely few-headed : 
Lys. linear, glabrous ; corymb slightly compound (12) flexuosa. 
Lys. linear, velvetty; corymb simple; inv. tomen. (13) sertulifera. 
Lys. oblong or lin.-oblong, glabrous and rugulose 
beneath ; twigs and invol. hairy ... (14) rugulosa. 
Lys. short, ‘ovate or oblong, or 3-lobed, ‘glabrous ; . 
invol., glabrous .. . ... (15) microphylla. 
Lys. orbicular, glabrous ; inv. scales downy ... (16) rotundifolia. 
Lvs. obovate or cuneate, entire or 3-toothed, 
glabrous; inv, glabrous ree . (17) dimorpha, 
Fl.-heads globose or obovate, many-flowered (40-50-100-f1. } 
Leaves narrow-linear, entire (or 3-toothed or lobed) : 
Corymb few-headed ; inner inv. scales scarious 
and tornatedge ... ... (18) oligocephala. 
Corymb 10-20-headed ; inv. ‘scales oblong, obtuse, 
quite entire... ... (19) glabrescens. 
Slender ; corymb few- headed ; outer inv. scales 
ovate, acute, inner scarious ... -.. (20) eriopoda. 
Lys. oblong or ovate-obl., entire (or 3-5-toothed o or lobed). 
Branches, leaves, pedicels, and inv. fons 6 —— 
= many-headed (21) pubescens. 
