518 



COMPOSITE. 



Streets of towns and cities: Berkeley, Davy; Oakland; San Fran- 

 cisco. Jan. -Mar. 



2. C. coronopifolia L. Perennial, somewhat succulent, often 

 subaquatic; stems commonly many and clustered, decumbent, £ to 

 1 ft. long; leaves linear, lanceolate, or oblong, entire, coarsely toothed 

 or pinnatifld on the same plant, dilated at base into a short sheath 

 round the stem; heads depressed, 4 to 5 lines broad; pistillate flowers 

 in a single row, on pedicels h as long as the involucre, without corolla; 

 disk-flowers on much shorter pedicels. 



Saline localities everywhere and in springy places in the hills, most 

 abundant in salt marshes about San Francisco Bay and flowering 

 from Mar. to Dec. 



35. SOLIVA K. & P. 



Small depressed annual with rigid short branches, petioled and 

 pinnately dissected leaves, and discoid heads of greenish flowers sessile 

 in the forks. Involucre of 7 or 8 greenish nearly equal bracts. 

 ■Receptacle flat. Outer series of flowers pistillate and apetalous; 

 innermost flowers perfect but sterile, the corolla 4-toothed. Achenes 

 obcompressed, callous-margined or winged and pointed with the 

 hardened persistent style. Pappus none. (Named in honor of Dr. 

 Salvador Soliva.) 



1. S. sessilis E. & P. Plants 2 to 4 in. across, minutely pubes- 

 cent or rusty villous; one, two, or three heads sessile at the very base, 

 the somewhat tortuous stems radiating from under these; involucral 

 bracts 7 or 8, oblong, acute, pilose-pubescent; pistillate flowers 9 to 

 12; each wing of the achene terminating above in an incurved tooth; 

 staminate flowers fewer than the pistillate, 7 to 9; styles stout, subu- 

 late, conspicuously exserted beyond the disk-corolla. 



Moist ground, Mendocino Co., Bolander; Howell Mountain, 

 Jepson; Angel Island; Oakland, Davy; Forest Grove and southward 

 to Santa Barbara. Probably naturalized from Chile. Mar. -May. 



Tribe 5. Helenieae. Sxeezeweed Tribe. 



36. JAUMEA Pers. 



Perennial glabrous herbs. Leaves linear, entire, fleshy, opposite 

 and connate at base. Heads middle-sized, many-flowered, solitary, 

 terminating the branches, the peduncles thickened at apex. Flowers 

 yellow, the rays pistillate, all fertile. Involucre cylindraceous- 

 campanulate, its bracts broad and imbricated, the outermost short 

 and fleshy. Receptacle naked, conical. Corolla glabrous. Style- 

 branches of the disk-flowers thickened upward and papillose. 

 Achenes linear, striately 10-nerved. Pappus (in ours) none. 

 (Named for I. H. J auntie St. Hilaire, French botanist.) 



1. J. carnosa (Less.) Gray. Stems slender but rather rigid, many 

 from the fleshy crown of the taproot, mostly simple, 4 to 6 in. long, 

 decumbent at base and rooting at the nodes; leaves semi-terete, £ to 

 1 in. long; heads £ in. high; rays about 6. 



