402 COMPOSIT 4 | AGOSERIS. 
A. apargioides Greene |. c. Troximon apargioides Less.’ Low and 
tufted from a multicipital caudex, glabrate: leaves spatulate, obtuse. 2-3 
inches long, narrowed below to a slender petiole, entire or with a few 
salient teeth or lobes, or pinnatifid with sparse linear divisions: scapes 6-12 
inches high: heads half-inch high: involucre campanulate; the inner bracts 
linear-lanceolate, the outer oblong, acute. more or less tomentose: achenes 
and beak each about 2 lines long: pappus soft, dull-white. Sandy soil along 
the coast of Oregon and California. 
* * Achenes oblong or short-fusiform, with a filiform or almost 
capillary beak 2—4 times as long: pappus soft and fine: flowers all yellow. 
+ Pappus about as long as the beak, 
A. hirsuta Greene l. c, Troximon humile Gray. Scapes 8-20 inches 
high, slender: leaves hirsutely pubescent, from lanceolate to spatulate in out- 
line, and from repand-dentate or lyrate-pinnatifid to pinnately parted into 
linear lobes; invulucre permanently villous: flowers exserted: filiform beak 
only about twice as long as the whitish achene. Near the coast. Washington 
to California. 
+ + Pappus white, much shorter than the almost filiform beak. 
A. laciniata Greene l. c. Troximon laciniatum Gray. Smooth and 
glabrous or with sparse soft pubescence: scapes 1-2 feet high: leaves elonga- 
ted-lanceolate, laciniate-dentate or commonly deeply pinnatifid with linear 
lobes: involucre glabrous or glabrate, or the base of the outer of the lanceo- 
late bracts tomentose: achenes 2, and beak 5-7 lineslong. In low ground, 
Vancouver Island to California. 
A. grandiflora Greene 1. c. 178. Troximon grandiflorum Gray. 
Scapes stout, 1-2 feet high: leaves hirsutely or cinereous-pubescent, or glabr- 
ate: spatulate to lanceolate, sinuate-dentate to laciniate-pinnatifid or even 
pinnately parted: involucre broad, usually well imbricated: its bracts lanate 
or tomentose when young, often glabrate in age: heads in fruit 1-14% inch 
high: achenes 2, and capillary beak 6-8 lines long. Plains and moist hill- 
sides, Washington to California. 
A. retrorsa Greene l. c. Troximon retrorsum Gray. Villous-tomen- 
tose when young:, scapes stout, 12-18 inches high: leaves pinnately parted 
into linear-lanceolate usually retrorse lobes, the terminal lobe long and nar- 
row; all callous-tipped: involucre narrowly oblong, 144-2 inches high when 
mature; its linear-lanceolate bracts hardly surpassed by the soft white pap- 
pus: ligules short: achenes 3 lines long: abruptly contracted at summit; their 
filiform beaks 10-12 lines long. Open pine woods. southern Oregon to 
California and southern Idaho. 
§ 8 Achenes fusiform, with filiform nerveless beak and soft pappus: 
subcaulescent annuals with yellow flowers. 
A. heterophylla Greene l.c. Troximon heterophyllum Greene. Some- 
what villous, or hirsutely pubescent or glabrate: scape-like peduncle 3-12 
inches high: leaves from spatulate to linear-lanceolate, denticulate to pin- 
natifid: involucre oblong-campanulate, 6-9 lines high; its bracts erect, lan- 
ceolate or norrower; the outer decidedly shorter than the glabrous inner ones, 
more or less pubescent but not villous: achenes various, but at most only 2 
' lines long, usually fusiform; beak 3-4 lines long, mostly longer than the 
white or whitish pappus. Open places, Brit. Columbia to California. 
Var. glabra. Glabrous throughout and more or less glaucous: small, 
2-4 inches high. Hillsides near the Columbia river, eastern Oregon and 
Washington. 
