304 COMPOSITE. Orinddia. 



3. Gr. robllSta, Nutt. Very glabrous, pale, usually stout : leaves from broadly 

 spatulate or oblong to lanceolate, or the upper cordate-clasping, commonly obtuse, 

 sharply more or less serrate : involucre with at length squarrose tips : pappus of 2 

 to 3 or rarely 5 rigid and liattish nearly smooth awns : akenes mostly 1 - 3 -toothed 

 at the apex. Trans. Am. Phil. Soc. n. ser. vii. 314. 



Var. latifolia (6?. latifolia, Kellogg in Proc. Calif. Acad. v. 36) is a robust and 

 broad-leaved form, with leaves 3 or 4 inches long, and the cordate-clasping oval 

 upper ones almost as broad : heads proportionally large. 



Var. angustifolia (G. cuneifolia, Nutt. 1. c.) is a coast form, with rather fleshy 

 leaves varying from cuneate-spatulate to lanceolate, the upper nearly entire, all nar- 

 rowed at base. 



Var. (?) rigida. A more glutinous and rigid form, with naked corymbose or 

 paniculate heads, and rigid coriaceous leaves, some of them very sharply serrate : 

 growing in dry or arid exposures, away from the sea. 



Common along the coast ; the last variety more inland, on the coast-range, the Contra Costa 

 Mountains, &c. A polymorphous species. 



G. INTEGRIFOLIA, DC., of Oregon (which includes G. stricta, DC.) may occur in the northern 

 part of the State. The larger forms of it and the more entire-leaved forms of the preceding are 

 not clearly distinguished. 



G. DISCOIDEA, Nutt, of Oregon is a small -headed species wholly destitute of rays. 



G. NANA, Nutt., from the same region, is a somewhat similar species, but dwarf, and with rays. 



* * A span or so in height : leaves narrowly and spatulate-linear, mainly radical. 



4. Gr. humilis, Hook. & Am. " Glabrous : stem herbaceous, simple, with, a 

 single head : radical leaves linear, obtuse, tapering to the base ; the cauline ones 

 sessile, the lower narrowly linear and the upper reduced to subulate bracts : scales 

 of the involucre linear-lanceolate, with squarrose tips." Bot. Beech. 147. 



Although Lay and Collie must have collected the specimen in the vicinity either of Monterey 

 or of San Francisco Bay, it has not since been identified. From a description and sketch of the 

 specimen in the Hookerian herbarium, it is ascertained that it is unlike any other known species : 

 the narrow radical leaves 2 inches long : involucre about half an inch high, its scales acute, only 

 the outermost loosely recurved or spreading, the others appressed. Rays rather numerous and 

 elongated. The pappus is not described. 



9. ACAMPTOPAPPUS, Gray. 



Heads many- (12-30-) flowered, homogamous, the flowers all perfect and with 

 tubular corollas. Involucre hemispherical ; the scales imbricated in about three 

 ranks and closely appressed, oval or oblong, very obtuse, concave, coriaceo-charta- 

 ceous and whitish, with a greenish spot next the summit, margined with a scarious 

 and lacerately ciliate or fringed border ; the outer successively shorter. Eeceptacle 

 convex, alveolate, fimbrillate. Corolla funnelform, 5-lobed. Branches of the style 

 tipped with a thickish subulate appendage. Akenes short and thick, turbinate, 

 densely silky- villous with very long white wool, 5-nerved under the wool. Pappus 

 between chaffy and bristly, rigid, of 12 to 18 palea3 or flattened chaffy bristles, 

 equalling the akene and the corolla in length and mostly somewhat dilated at tip, 

 and of about as many more slender and unequal shorter bristles. Proc. Am. Acad. 

 viii. 634. A single species : 



1. A. sphaerocephalus, Gray, 1. c. Glabrous low shrub (1 to 3 feet high), 

 not at all glandular nor resiniferous, with rigid and angular straggling branches : 

 leaves narrow, entire : flowers light yellow. Aplopappus (Acamptopappus) sphcero- 

 cephalus, Gray, PI. Fendl. 76; Torr. in Pacif. R. Rep. vii. 12, t. 6. 



Desert region bordering Arizona, first described from Coulter's Californian collection (No. 281), 



