SUNFLOWER FAMILY. 



517 



whole inflorescence spike-like and more or less leafy; adicnes with 

 small epigynous disk. 



Introduced weed: West Berkeley, Greene, 1888; Lower Sacra- 

 mento, Jepson, 1893. 



3. A. Californica Less. Hill Brush. Gray shrub, 2£ to 4 ft. 

 high; leaves with a minutely appressed pubescence, the lowest pal- 

 mately once or twice parted into linear-filiform segments, the upper 

 entire and more or less fascicled; heads many, nodding in long race- 

 mose panicles; involucre 1£ or 2 lines broad; achenes with a minute 

 squamellate crown-shaped pappus. 



Exposed slopes of hills: Berkeley, and through the Mt. Diablo 

 range southward. Called " Old Man " in some regions. 



4. A. dracunculoides Pursh. Glabrous, not aromatic, perennial; 

 stems 2 to 4£ ft. high, either virgately or paniculately branched; 

 leaves linear, less than 1 to 2 lines broad, entire or the lowermost 

 3-toothed or -cleft; heads numerous, nodding on very slender short 

 peduncles in a close or open panicle, the clusters sometimes secund on- 

 the slender branches; marginal flowers fertile, disk-flowers perfect but 

 sterile, as also in the next. 



San Leandro Creek, Bolander, acc. to Bot. Cal.; common in the 

 Sierra Nevada. 



5. A. pycnocephala DC. Stems stout, simple, U to 2\ ft. high, 

 somewhat woody at base, crowded with leaves up to the inflores- 

 cence; herbage densely silky; leaves once to thrice pinnately divided 

 into linear lobes; heads erect, in spikes, the spikes crowded in a dense 

 virgate panicle; heads almost or quite 2 lines in diameter; involucre 

 densely villous. 



Sand hills along the coast from Monterey to Humboldt Co. 



34. COTULA L. 



Low strong-scented herbs. Leaves alternate, dissected or lobed, or 

 with some entire on the same plant. Flowers yellow. Heads slender- 

 peduncled, discoid, low-hemispherical. Bracts of involucre greenish, 

 in about 2 ranks. Receptacle flat or nearly so, naked. Outer series 

 of flowers pistillate only and apetalous. Disk-flowers with 4-toothed 

 corolla, fertile or infertile. Mature achenes raised on pedicels, com- 

 pressed, spongy-margined or narrowly winged, destitute of pappus. 

 (Greek kotule, small cup or low vessel.) 



Annual; leaves pinnately dissected; pistillate flowers in 2 or 3 rows .... 



1. C. austral is. 



Perennial; leaves some pinnatifid and some entire, sheathing at base; 

 pistillate flowers in a single row 2. C. coronopij'olia. 



1. C. australis Hook f. Slender, branching, 2 to 5 in. high; 

 herbage with scattered soft spreading hairs; leaves pinnately or bipin- 

 nately dissected into linear lobes; heads very small, 1 to lines 

 broad; bracts of involucre brownish-tipped and with scarious edges; 

 pistillate flowers in 2 or 3 rows, pediceled; disk-flowers nearly or 

 quite sessile; marginal achenes somewhat compressed, minutely hispid 

 on both faces but the margin glabrous. 



