Grindelia. COMPOSITE. 303 



1. A. Fremontii, Gray, 1. c. Shrubby, 1 to 2 feet high : leaves obovate-spatu- 

 late, acuminate, short : heads sessile in compound corymbose clusters : involucre 

 (barely a quarter of an inch long) of 7 to 9 oval and obtuse thinnish scales, the tips 

 >^~ of which are obscurely greenish: ray-flower only one, with a short obovate lignle 

 and a pappus nearly as long as its tube, composed of numerous narrow chatty scales 

 united below into an irregularly cleft cup or crown : disk-flowers about 5, with 

 apparently well-formed but sterile ovary, and a pappus of about 20 flattish more 

 or less tortuous denticulate-hispid bristles, some of them occasionally united or 

 sparingly branched. — Amphipappus Fremontii, Torr. & Gray, iu Jour. Bost. Nat. 

 Hist. Soc. v. 1, & PL Fremont. 17, t. 9. 



On the Mohave River and in the vicinity of the Colorado, April : found only by Fremont 

 Bentham and Hooker (Gen. PI. ii. 250), recognizing the affinity of this with Amphiiidiyris dra- 

 cunculoidcs, refer them both to Gulicrrczia ; but it seems preferable to keep up the genus Amphi- 

 acliyris and refer this peculiar and rare species to it. 



8. GRINDELIA, Willd. Cim-plant. 



Heads solitary, terminating leafy branches, or occasionally more or less corymbose, 

 heterogamous with the rays fertile, or in one species homogamous (rayless), many- 

 flowered. Involucre hemispherical or globular, commonly coated with resin or 

 balsam ; its scales very numerous, imbricated, narrow, with coriaceous appressed 

 base and slender more or less spreading or squarrose green tips. Receptacle flat or 

 convex, foveolate. Eays numerous, narrow. Branches of the style tipped with a 

 lanceolate or linear appendage. Akenes compressed or turgid, or the outermost 

 somewhat triangular, glabrous, truncate. Pappus of 2 to 8 caducous awns or stout 

 corneous bristles. — Biennial or perennial and mostly coarse herbs, with sessile or 

 partly clasping leaves, often viscid or resinous, and middle-sized or rather largo 

 heads of yellow flowers ; flowering in summer. — Torr. & Gray, Fl. ii. 246. 



A characteristic genus of the plains west of the Mississippi, extending to the l'aeilic coast and 

 to Mexico, with two or three species in similar regions of South America, not over a dozen or so 

 in all. But they arc difficult of discrimination, especially the western species, which are all dif- 

 ferent from the eastern. Some good characters may be furnished by the ripe akenes, which are 

 known in few species. 



The balsamic resin which exudes from the herbage, most largely from the forming heads, is 



used i licinally, especially as a remedy for the elTects of Poison Oak (Ilhus lobata). Either the 



bruised plant is applied directly, or a decoction or alcoholic infusion. 



* Stems a foot to a yard high, leafy : leaves from obovate to lanceolate. 



1. G-. hirsutula, I look. A: Am. Hirsutely pubescent or sometimes almosf fcomen- 

 toso with soft spreading hairs, or lower part of the stem glabrous, one to three feel 

 high : leaves sharply and irregularly serrate, from lanceolate to oblong, the lower 



v^~ spatulate, uppermost usually with broad clasping base : awns of the pappus 2 or 3, 



flattish, nearly smooth. — Bot. Beech. 117. G. rnbrieaiilis, I M '. Prodi 1 , v. 316. 



Under redw Is, ice., from Monterey northward, extending along the coast to Pugel Sound. 



Known by the pubescence, and usually by the red or purplish stem : the involucre sometimes 

 tomentose, sometimes almost naked : the tips of the scales, as in other species, either straight or 

 squarrose. 



2. G. glutinosa, Dunal. Glabrous: leave, obovate, oblong, or oblong-spatu- 

 late, rounded at apex, sharply serrate above the middle : scales of the involucre with 

 short tips : pappus of 5 to 8 rigid flattened chafl'-like awns, their thin edges sparseh 

 serrulate cilio late. Aster r/l 'nti iiii.i/i.i, Ciiv. le. ii. I. 168, 



Sandy moist grounds, on the coast, Fort Point and Lobos Creek, near San Francisco: intro- 

 li |, The original of this specie is lid to have come from Southern Poru (not Mi 

 district which lias given not d few plants to the coast of California, 



