SUNFLOWER FAMILY. 



521 



4. B. uliginosa (Nutt.) Gray. Nine to 12 in. high, at Length 

 loosely branched and diffuse, villous-tomentose when young, com- 

 monly glabrate; leaves linear-ligulate, laciuiate-pinnatitid (especially 

 above the middle) or the upper sometimes entire, the larger 4 to 10 

 in. long, the undivided (or ligulate portion) often 4 lines broad and 

 conspicuously nerved; involucral bracts and oblong exserted rays 10 

 to 13; awns 3 or 4, with about 6 short intervening pales, or pappus 

 sometimes none. 



Low grounds, San Francisco Peninsula. Apr. -June. Perhaps but 

 a variety of B. tenella. 



-3. B. carnosa Greene. Stems about 9 in. high, simple <>r 

 branched from the base, slender and wiry, very sparsely clothed with 

 a tine deciduous wool; leaves somewhat succulent, all filiform and 

 entire; bracts of involucre fleshy, about 7, with a single strongly 

 carinate midrib; pappus of 4 or 5 ovate paleae, each bearing a subulate 

 awn; achenes roughish. 



Salt marshes at Vallejo, Greene, Apr. 15, 1883. 



6. B. platycarpha Gray. Stems purplish and wiry, branching. 

 5 to 8 in. high; leaves narrowly linear, some pinnatirid into filiform 

 divisions; bracts of the involucre 6 or 7, manifestly 3-nerved at base, 

 the middle nerve at length carinately thickened; pappus-palea- bright 

 white, 5 to 7, slender-awned, the awn as long as the achene. 



Alkaline plains of the interior: Byron, etc. Apr. 



7. B. microglossa (DC.) Greene. Very slender and but a few 

 in. high; leaves scarcely 1 line wide, entire; heads few-flowered, very 

 narrowly cylindrical, the rays very short and inconspicuous and thus 

 apparently rayless; bracts of the involucre 3 or 4. narrowly oblong, 

 achenes fusiform-linear; pappus-pale^ 2 to 4, attenuate-subulate. 



South Coast Range valleys: Mt. Diablo; San Francisco Bay and 

 southward to Southern California. 



8. B. chrysostoma F. & M. Stems slender, freely branching, 7 

 to 11 in. high; herbage hirsutulous; leaves narrowly linear, 1 line 

 wide or less, entire; heads 3 or 4 lines high; rays and bracts of the 

 broad involucre 7 to 12, or in depauperate plants often fewer; ligules 

 3 or 4 lines long; pappus none. 



Coast Range hills and valleys. Apr.-May. 



9. B. gracilis (DC.) Gray. Slender, 5 to 7 in. high; leaves 

 narrowly linear, entire; bracts and rays 10 to 12, when depauperate 

 o or 6; ligules 2 or 3 linee long; achenes linear-cuneate; pappus of 3 

 or 4 awns from small lanceolate pale®, almost as Ions; as the achene. 

 or the pappus none. 



Common in the Coast Range hills. Apr.-May. 



10. B. hirsutula Greene. Often branching very freely, 3 to 4 in. 

 high, hirsute-pubescent; leaves broadly linear, often with saliently 

 projecting teeth, the lower connate, sheathing the stem; involucral 

 bracts obovoid, acutish; rays oblong; achenes compressed, scabrous 

 with short sharp points; pappus of 2 to 5 brownish awn-like bristles 

 or none. 



