470 compositae. 



etc. June-Aug. The species is greener and more obviously "glandular- 

 Bcabrous. 



3. C. californica I><\ Plant white-woolly, with solitary heads on scape- 

 like peduncles from prostrate or decumbenl almost matted stems; involucre 

 and summit of peduncle viscidulous-glandular; leaves spatulate or obovate, 

 narrowed to a distind petiole, entire or serrate towards the apex, - in. long 

 or less; heads I ot 5 lines high, 6 or 7 lines broad; rays deep purple; in- 

 volucres and rays similar to the last. 



( rystal Springs, San Mateo Co. Apr.-June. Var. obovata Jepson. stems 

 decumbent, 1 to - ft. long; herbage tomentose; leaves obovate-spatulate, 



toothed near the apex; heads (i to 7 lines high, sometimes nearly 1 in. broad, 

 inclined to be solitary; involucres glandular; rays purple; pappus of ray of 

 1 or 2 to foist hs; pappus of disk-flowers about 35 bristles, the longest 

 .".'_. lines long. — Near the sea from I't. Reyes and Bodega to Mendocino. 

 July-Aug. 



88. ASTER L. Aster. 

 Late-aestival or autumnal herbs, with paniculate, corymbose, or racemose 

 heads. Heads usually numerous. Involucres turbinate or campanulate to hemi- 

 spherical, the bracts imbricated in several ranks, with green tips. Disk- 

 Aowers yellow-, changing to purple or brown. Receptacle flat, pitted. Pappus 

 copious, of simple capillary bristles. (Greek astere, a star, from the star-like 

 heads of flowers.) 



Perennial; rays conspicuous. 



Inflorescence corymbose; leaves (at least some) elliptic-obovate 1. A. radnlinus. 



Inflorescence paniculate or racemose; leaves linear to lanceolate. 



Inflorescence mostly condensed, the heads on very short branchlets; herbage cinerous 

 (and the pubescence harsher than in the next) or almost glabrous; leaves purple- 

 veined beneath 2. A. mensiesii. 



Inflorescence mostly loose, the heads or clusters of heads on long branchlets; herbage 



hirsute or villous-pubesccnt, or glabrous 3. . /. chilensis. 



Annual or biennial; inflorescence paniculate; rays inconspicuous 4. .-/. cxilis. 



1. A. radulinus Gray. BROAD-LEAF Aster. One-half to 1%, seldom i^ ft. 

 high, scabrous-pubescent; leaves oval-obovate 1<> oblong, 4 in. lone- or 

 less, sharply serrate above the entire (often attenuate) base; heads mostly 

 numerous (sometimes very few), corymbose, 5 to <i lines high; involucre tur- 

 binate; bracts imbricated, the outer shorter, villous-puberulent ; rays whitish. 

 3 to 5 lines long. 



Dry hills, rather common: Monterey; Santa Cruz Bits.; Oakland Hills; 

 Sonoma Co.: Vara Mis.; Lake Co.; Sierra Nevada, July-Sept. 



2. A. menziesii Limll. Purple Astes. stems simple, commonly several 

 from the woody loot. 1 ' ._. to 2 ft. high; herbage cinerous or almost glabrous, 

 the foliage rough-pubescent; leaves linear to lanceolate. 1 to 2% in. hm»j, 

 purple-veined beneath, remotely serrate or entire, Bessile, subcordate .-n base. 

 those of the raceme or thyreoid panicle much reduced, so that the inflorescence 



vr.iiis almosl naked; heads W to 5 lines high on rigid elect branchlets: involucre 

 hemispherical or broadly turbinate, the bracts limnr-spat ulat e in several 

 Closely imbricated ranks, the green lips obtuse; rays violet or purple. 



Low dry ground: Solano Co. and southward to Southern California. Sept.- 

 Nbv. bare in our district. 



3. A. chilensis Nees. Common Aster. Two to nc, ft. high, villous-pubes- 

 ceni or more or less glabrous; leaves Lanceolate, Bessile, 5 in. lone or less, 

 entire, above ]■ radually into the bract-like ours of the inflorescence, 

 the radical oblong-spatulate, remotely Berrate and attenuate into a petiole, 



all commonly with scabrous ci liolate mar-ins; panicle ot' loose leafy racemes 



