SUNFLOWER FAMILY. 531 



filiform flowering branchlets very short; lower leaves plnnately 

 parted; heads narrow; dislc-flowers about 6 or 7; ray-flowers 5, the 

 ligulea 2 to 2J lines long; ray-achenes slightly curved, roughened on 

 the beak and sides, and with a curved or upturned beak at the 

 summit on the inner side; pappus of about 9 linear palese which are 

 irregularly lacerate at summit and almost or quite as long as the tube 

 of the corolla, united only at base or almost to the summit. 



Antioch to the San Joaquin Valley where it is abundant in low 

 grain fields near the river. July-Aug. 



6. H. fasciculata (DC.) T. & G. Paniculately branched above the 

 base, J to 2 ft. high, sparsely hirsute and hispid, or disposed to be 

 nearly glabrous above; radical leaves pinnately parted; stem leaves 

 linear, either laciniate-pinnatifid, few-toothed or entire, those of the 

 branchlets shorter and mostly entire; heads usually fascicled in rather 

 dense small clusters; bracts of the involucre glabrous or glandular- 

 hispidulous, those of the involucre slightly united; disk-achenes with 

 a pappus of 6 to 10 linear palese lacerate at tip; ray-achenes smoothish 

 or transversely rugose, with a very short beak. 



Ht. Diablo Range southward to Monterey Co. and Southern 

 California. 



7. H. virgata Gray. Stem commonly branching at the middle 

 into several virgate branches bearing numerous racemosely disposed 

 heads on short lateral branchlets; herbage glabrous or nearly so; 

 branchlets crowded with linear leaves about 1 line long, those (partic- 

 ularly of the flowering branchlets) ending in a truncate or somewhat 

 saucer-shaped gland; involucre oblong, its bracts 5, with involute tip 

 ending in a truncate gland and stipitate-glandular on the back; ray- 

 flowers 4 or 5; disk-flowers 7 to 10. 



Common on the plains of the Sacramento Valley (Suisun, Vanden, 

 Gait, etc.) and the San Joaquin Valley and in the valleys of the 

 inner South Coast Kanges. Aug.-Oct. 



8. H. Heernnanni Greene. Stems paniculately branched, 1 to 3 ft. 

 high; herbage viscid, pubescent, heavy-scented; leaves of the flower- 

 ing branchlets minute, scattered; involucre hemispherical, its bracts 

 beset with stalked glands; ray-flowers 5 to 8, disk-flowers 10 to 15; 

 ray-achenes with a somewhat conspicuous beak and stipe. 



Mt. Diablo Range Southward to Kern Co. and Southern California. 



48. HOLOCARPHA Greene. 

 Corymbosely branching annual with very viscid-glandular herbage. 

 Leaves of the axillary fascicles and those about the heads narrowly 

 linear, beset with stipitate glands and tipped with a truncate gland. 

 Heads solitary or commonly glomerate at the ends of the branches. 

 Bracts of the convex receptacle each subtending a flower, the outer 

 and those of the involucre abundantly covered with slender or clavate 

 colorless gland-tipped processes. Ray-flowers many, with short yellow 

 liffules; achenes 4-ridged on back, the ventral angle ending in a beak. 

 Disk-flowers with sterile achenes. Pappus none. (Greek holos, 

 whole, and karphos, chaff, the whole receptacle chafly.) 



