70 COMPOSIT (Harv.) [ A ster. 
Lys. subulate or filiform, without obvious nerve: 
Lvs. subterete, glabrous or ciliate... (4) muricatus. 
Lvs. subulate, channelled, glabrous ; 
Achenes puberulous ; pappus 
deciduous, flexuous ...... (6) simulans. 
Achenes densely silky ; pappus a 
persistent, straight ... ... (8) Bowiei. 
Lys. nerved, smooth-edged... ... ... (7) angustifolius. 
Lys. nerved, ciliate or serrulate : 
Pedune. terminal, t-headed : 
Lvs, lance-linear, acute... ... (8) serrulatus. 
Lvs. oblong-obovate, obtuse... (9) Zeyheri. 
Peduncles lateral, in a panicle or . 
thyrsus) ws... (10) erigeroides. 
Lys. pubescent, canescent, or scabrid glandular : 
Lys. minutely-pulverulent or velvetty-pulvt.: 
Lvs. obl.-spathulate, obtuse, entire (1 1) Dregei. 
Lys. 3-5-toothed at point, velvetty (11) Dregei, 8. 
Lvs. 3-5-lobed at point, scabrid-pul- 
verulent eS Sere 
Lvs. roughly-pubescent or canescent : 
Lvs. spreading, appressed-pubescent 
(42) scabridus. 
orcanous ... ... 4... ... 4... (13) hyssopifolius. 
Leaves erect, roughly-hairy ; twigs 
rO-lke 9 
os. se cee | oes (Rd) OCR 
(6) Pappus reddish, rigid ; achenes densely silky or hairy : 
Glaucous; lvs. filiform, rigidly ciliate, elabrous... (16) rufibarbis. 
Robust, divaricate, green; lvs. linear, glabrous or 
pilose: i142. ioe ogy ieee ate (18) Burkei, 
Glandular ; lvs linear, entire, the up. glandular (17) lasiocarpus. 
B. Achenes perfectly glabrous. (Sp. 19-24). 
Leaves opposite, linear, fleshy, obtuse, entire .. 
(19) ficoideus. 
Leaves scattered, linear or lanceolate : 
Lvs. margined with stalked glands ... ... ... (20) Caffrorum. 
Lys. glabrous, revolute-reflexed ; inyol. scales 
OTTRETOWS vs. erat, ook. hg ast uty, ee Ae 
Lvs, ciliate, imbricate; inv. scales erect ... _.. (22) imbricatus. 
Leaves broad-based, oblong, ovate, or ovato-lanceolate: 
Branches rod-like ; lvs. imbricate ; heads sub- 
EOE Cie a ee ee (23) echinatus. 
Branches curved ; lys, strongly recurved ; heads 
2, Agathza,—Invol. campanulate, 
nearly of equal size, the outer scales 
. and mostly keeled. (Sp. 25-46). 
A, Annuals : 
Disc-fl. abortive. Pappus of few, barbellate bristles. 
Invol. scales linear, hairy at back ... ... .. (25) Bergerianus. 
Invol scales broadly-oblong, quite glabrous ... (26) annectens. 
Disc. fl. generally perfect. Pappus of many bristles. 
Leaves mostly alternate (save the lower) : 
Inv. scales 2~3-seriate, acute or acuminate : 
Root slender. A. slender, branching, 
hairy annual 
(24) reflexus. 
the scales either in 1 row, or, if in 2 or 3 rows, 
being as long, or nearly as long, as the inner, 
eabihos ebb oud) pac: (97). SER 
Root thick. A robust, very hairy, and 
glandularannual. ... ... ... .., (28) Namaquanus. 
Tny. scales uniseriate, obtuse ; lvs. roundish- 
oblong... 3 
: Mab aires ysass oer oe (44) Capensis, 8. 
Leaves mostly opposite (some alternate) : ; 
Lys. close-set, linear or spathulate, 3-1 in. long (29 Pappei. 
