SUNFLOWER FAMILY. 



493 



lanceolate-acuminate, and with some loose subulate ones at base; 

 beak of achene as long as the body; pappus dull white. — (Nemoseris 

 Californica Greene.) 



Shady or moist places in the hill country of the Coast Ranges: 

 Pt. Arena; Oakland Hills; Mt. Diablo; Santa Cruz Mountains; 

 Monterey Co. and southward to Southern California. June. 



7. HYPOCH/ERIS L. 



Herbs. Stems naked, bearing a solitary head or a somewhat corym- 

 bose cluster of long-peduncled heads. Flowers yellow. Leaves in a 

 radical cluster or rosette, toothed or pinnatifid. Involucre campan- 

 ulate or cylindrical, its bracts rather few, lanceolate, imbricated, 

 appressed, the outer ones successively shorter. Receptacle flat, its 

 scarious chaffy bracts thin and narrow. Achenes glabrous, upwardly 

 scabrous, the body 10-ribbed, narrowly oblong or fusiform, tapering 

 upward into a slender beak, or the outermost truncate. Pappus of 

 plumose bristles, some of the outer often shorter and naked. (Greek 

 name used by Theophrastus for sonic cichoriaceous plant.) 



1. H. glabra L. Glabrous annual; stems several, erect, simple or 

 mostly corymbosely branched, 9 to 18 in. high; leaves broadest above, 

 denticulate, broadly toothed with triangular sinuses, or saliently lobed; 

 heads campanulate; ligules scarcely longer than the involucre; outer- 

 most achenes truncate at summit, the others all beaked. 



Naturalized weed, not uncommon in cultivated fields. May-June. 



H. radicata L. Gosmore. Stems several from a fleshy perennial 

 root; leaves hispid with spreading hairs, pinnatifid below the large 

 terminal lobe into oblong obtuse lobes; rays longer than the involucre, 

 which is disposed to twist slightly after anthesis; achenes all beaked. 

 — Lawns at Berkeley, flowering in summer and autumn. Leafy 

 bulblets or rosettes often form in the axils of the inflorescence, 

 particularly late in the season. 



8. UROPAPPUS Nutt. 



Nearly acaulescent annuals. Leaves pinnatifid with mostly sub- 

 ulate or acuminate lobes or entire. Peduncles enlarged at summit, 

 naked, each bearing a single head. Heads oblong, erect; ligules 

 short, the heads in anthesis small. Main bracts of the involucre 

 about equal, but with shorter ones at base, all membranous. Achenes 

 10 to 12-ribbed. Pappus-palese 5, elongated, tipped with a very 

 short awn or bristle which proceeds from the cleft summit. (Greek 

 oura, a tail, and pappos, pappus, on account of the bristle-like append- 

 age to the palea*.) 



Pappus clear white, soft, deciduous from the black achenes. 1. U. linean'folius. 

 Pappus d\ill brown or sordid, of firm texture, persistent on the light colored 

 achenes. 



Palea longer than the awn of the pappus 2. U. Lindleyi. 



Palea much shorter than the awn of the pappus . . . . 3. V. macrochietus . 



I. U. linearifolius (DC.) Nutt. Stems or peduncles often several 

 from the base, erect, 9 to 18 in. high, in robust plants thickened or 



