172 



COMPOSITE. 



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. Var. 

 maritima, Greene. Stouter, often depressed; leaves broader, firmer: 

 pappus-awns 25, compressed, barbellate-scabrous on the margins. 

 Open glades among the wooded hills; the variety on bluffs near the sea. 



3. G. pal ens, Greene. Foliage and pubescence 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-achenes with obcordate summit 

 and only 2 awns. Hillsides and plains about San Francisco Bay. 



* * Late-xstival and autumnal species 

 Herbaceous perennial. 



4. G. procera. Strictly erect, 57 ft. high, simple up to the corym- 

 bose-paniculate summit, the stout while stem scabro-puberulent, 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. 



-- -i Suffrutescent species. 



5. 0. cmieifolia, Nutt. Bushy, 24 ft. high, glabrous: leaves thick- 

 ish and rather fleshy, 34 in. long, cuneate-spatulate to linear- oblong, 

 entire or sharply denticulate, clasping though not auricled at the broad 

 base; involucre % in. high, glutinous, the bracts all with squarrose 

 green tips : pappus-awns usually several, compressed, barbellulate. 

 Borders of salt marshes and along tidal sloughs about S. F. Bay and 

 southward along the coast. August December. 



6. G. palndosa. About 5 ft. high, sterile leafy shoots a foot high, or 

 more, surviving the winter, the plant otherwise herbaceous: herbage 

 glabrous except the scabrous-ciliolate leaf -margins; only the involucres 

 glutinous : leaves slightly fleshy, oblong-lanceolate to spatulate-oblong, 

 2 3 in. long, conspicuously serrate, at least those of sterile shoots with a 

 broad cordate-clasping base, the lobes surrounding the stem: involucre 

 squarrose: achenes with prominent turgid angles, those of the ray 

 triquetrous, of the disk compressed: awns 2 only, even in the ray, stout, 

 strongly flattened. Abundant in brackish marshes of Suisun Bay. 

 August -October. 



