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4, IL. nreractorprs Hook, & Arn. Pappus 
bristles plumose, their hairs straight and erect; 
rays conspicuous, yellow, but little longer than 
the disc-flowers.—Marin County. Spring. 
5. lL. GAILLARDIOIDES Hook. & Arn. Pap- 
pus-bristles plumose; their hairs straight and 
erect; ray-flowers conspicuous, yellow; con- 
siderably longer than the disc-flowers. Contra 
Costa; Saucelito. Spring. 
6. L. puatyetossa Gray. Pappus aris- 
tate; awns equal; ray-flowers yellow, frequently 
with white tips.—Saucelito. Spring. 
7, L. catrietossa Gray. Pappus aristate; 
awns unequal; ray-flowers yellow with white 
tips.—Berkeley. Spring. 
8. lL. CHRYSANTHEMOIDES Gray. Pappus 0; 
ray-flowers yellow with white tips.—Alameda. 
Milbrae. Spring. 
37, Achyrachena Schauer. 
Superfiua. Ray-flowers short and hidden. 
Involucre 1-seriate; scales with scarious mar- 
gins, embracing the ray-akenes. Receptacle flat, 
naked in the centre, paleaceous towards the 
margin. Akenes clavate, those of the disc 
truncate, those of the ray with an epigynous 
disc; pappus of about 19 shining, silvery scales 
in two series, the outer considerably shorter 
than the alternate inner ones.—@. Flowers 
yellow or pale. 
1, A. MoLLIS Schauer.—Common. Spring. 
