362 COMPOSITE. 



bracts of flowering branches nearly entire, spreading; involucres % — % 

 in. wide, their bracts with long linear recurved tips : ray-achenes 

 obscurely triquetrous, with 3 or more pappus-awns ; disk-achenes com- 

 pressed, obliquely biauriculate or unidentate at summit, and with 

 pappus of 2 bristles. — Common on rich plains of the interior. June — 

 Sept. 



2. Gr. hirsutnla, H. &. A. Bot. Beech. 147 (1833) : G. rubricaulis, 

 DO. Prodr, v. 316 (1836); Greene, Man. 171. Eather slender, ascending, 

 2 ft. high, stems from brownish to dull red, herbage scarcely glutinous, 

 roughish-pubescent or even somewhat hirsute : radical leaves numerous, 

 tufted, oblanceolate, coarsely serrate; cauline reduced, few and remote : 

 heads solitary or few, nodding in the bud : inner bracts of involucre 

 closely imbricated and very glutinous, without spreading tips : achenes 

 mostly thin and flat, with obcordate summit and only 2 pappus-awns. — 

 Open glades among the wooded hills. 



3. G. patens, Greene, Pittonia, ii. 290 (1892). Foliage and pubes- 

 cence of the preceding, nearly, but stem stouter, erect, the flowering 

 branches at no stage nodding at summit ; heads larger, % — 1 in. broad ; 

 bracts of involucre mostly linear or lanceolate-foliaceous, straight and 

 widely spreading, some of the inner with shorter and recurved tips: 

 disk-acheues with obcordate summit and only 2 awns. — Hillsides and 

 plains about San Francisco Bay. 



4. G. robusta, Nutt. Trans. Am. Phil. Soc. vii. 314 (1840). Stems 

 stout, ascending, l^j ft. high : leaves broadly cordate-oblong, obtuse, 

 coarsely serrate, 'i}4 in- long, often 1 in. broad, subcoriaceous, glabrous, 

 on the margins pubescent : heads very few and large, corymbosely dis- 

 posed ; outer bracts of involucre rather leafy, the others narrow and 

 squarrose : pappus-awns 2. — Open ground near the sea, at Monterey and 

 southward. 



* * Late-iesHval and aulumnal species. 

 H— Herbaceous perennial. 



5. G. procera, Greene, Man. 172 (1894). Strictly erect, 5—7 ft. high, 

 simple up to the corymbose-paniculate summit, the stout white stem 

 scabro-puberuleut, plant otherwise glabrous, slightly glutinous : lower 

 leaves unknown ; upper cauline lanceolate, attenuate-acute, entire, 2—3 

 in. long ; involucres small, low-hemispherical ; bracts with appressed 

 base and short slender recurved tips : rays short : pappus-awns 2. — 

 Bottom lands of the lower San Joaquin, in places inundated in spring 

 and early summer. 



