Latia. COMPOSITjE. 395 



brous, with a short pubescence, and with sfipitate black glands intermixed ; 

 rays (white ?) 10-12, large, 3-cleft at the apex, twice the length of the disk ; 

 pappus very white. — Madaroglossa heterotricha, DC. ! I. c. ; Hook. ! ic. 

 pi. t. 326. 



CaHfornia, Douglas! — Plant 1-2 feet high. Leaves 1-2 inches long, 2-3 

 lines wide. Rays nearly an inch long, probably white. Acheniaof the ray 

 glabrous ; of the disk appressed villous-pubeacent. Awns of the pappus 

 13-17 ; the long plumose hairs erect. 



135. CALLICHROA. Fisch. Sf Meyer, 2nd ind. sent. St. Petersh. p. 31. 



Callichroa & Calliglossa, Hook. <J« Am. 



Heads many-flowered ; the ray-flowers 10-15, ligulate, 2-3-toothed, pis- 

 tillate ; those of the disk tubular, perfect. Scales of the involucre oblong or 

 lanceolate, nearly in a single series, foliaceous ; the base convolute and en- 

 closing the ray-achenia. Receptacle flat, chaffy at the margin only, or 

 throughout. Corolla of the disk with a short pubescent tube and an infundi- 

 buliform throat, 5-toolhed. Branches of the style subulate-filiform, hairy 

 above, at length exserted and recurved. Achenia of the ray glabrous, 

 narrowly obovate-oblong, obcompressed, somewhat incurved, crowned 

 with a small protuberant disk, destitute of pappus ; of the disk villous, 

 obcompressed, subclavate or narrowly cuneiform-oblong, with a pappus 

 of 12 to 25 subulate and naked serrulate-scabrous awns. — Annual (Cal- 

 ifornian) herbs, with entirely the habit and aspect of Layia and Oxyura. 

 Flowers yellow ; the rays often whitish at the apex. Anthers purplish- 

 brown. 



The first section is only distinguislied from Layia by the naked, instead of plumose 

 awns of the pappus, and might perhaps be combined with it. 



§ 1. Receptacle naked and pubescent at the centre, chaffy at the margin in one 

 or more series ; the exterior resembling the scales of the involucre : achenia 

 narroio : awns of the pappus (20-25) setiform, equal. — Callichroa, Fisch. 

 & Meyer. 



1. C. platyglossa (Fisch. & Meyer, 1. c.) : somewhat hirsute with slender 

 white hairs, and cinereous with a short pubescence, with small stipitate glands 

 intermixed ; leaves linear-lanceolate ; the lower incisely pinnatifid, the upper 

 entire or slightly toothed ; achenia of the disk slender, slightly obcompressed, 

 villous, when mature rather longer than the pappus ; corolla somewhat pu- 

 bescent. — Don, Brit. fl. gard. ser. 2. t. 373 ; Schauer, del. sem. Vratisl. 1837, 

 p. 2; DC. frodr. 7. ip. 294 ; Hook. ^* Arn. bot. Becchey, suppl. p. 357 ; Hook, 

 hot. mag. t. 3719. Madaroglossa (Callichroa) hirsuta & angustifolia, Nutt. I in 

 trans. Amer. j)hil. soc. (n. ser.) 7. p. 394. 



California, at the Russian Colony Ross, Fisch. S^' Meyer, and at St. Bar- 

 bara and Monterey, Nuttcdl! — Plant branching from the base, 6-12 inches 

 high. Heads showy, an inch and a half in diameter, including the light 

 bright yellow cuneiform-oblong rays ; the latter whitish at the tips in the wild 

 plant, according to Nuttall. — The small and stipitate dark glands are not men- 

 tioned in the account of the cultivated plant; with which Mr. Nuttall's speci- 

 mens otherwise well accord. 



