!907] Hall. Compositae of Southern California. 253 



series of paleae alternating with stout bristles which are palea- 

 ceous-dilated at base. 



1. R. Hedypnois AIL, Fl. Pedem. i. 226 (1785) ; not E. He- 

 dypnois F. & M., Ind. Sem. Hort. Petrop. iv. 46 (1835-46). 

 Hedypnois polymorpha DC., Prodr. vii. 81 (1838). H. Creticq 

 Cav., Ic. i. t. 43 ; not Willd. Garkadiolus Hedypnois Jaub. & 

 Spach, Illustr. iii. 120 (1842-57). 



Coarse herb, .5 to 2 dm. or more high, with several to numer- 

 ous widely spreading branches: herbage green, short-hispid: 

 lower leaves oblanceolate, sessile, 3 to 6 cm. long, coarsely toothed ; 

 cauline leaves few, linear or lanceolate, acute, mostly entire: 

 heads solitary, on long peduncles which are more or less thick- 

 ened above: involucre 8 or 10 mm. high: principal bracts 10 to 

 15, becoming firm and linear in age, then incurved and embracing 

 the marginal achenes : achenes terete, truncate, hispidulous on the 

 nerves. 



San Diego (near the Ostrich farm), Jun., 1906, Mrs. Bran- 

 degee; Mariposa Co., May, 1895, Congdon; Sonoma Co., Apr.. 

 1900, ace. to Miss Eastwood, who states that the plants are some- 

 times 6 to 9 dm. high; 64 Texas, ace. to Watson. 65 Introduced 

 from the Mediterranean Region. 



107. ANISOCOMA Gray. 



Scapes several from a strong taproot, each bearing a single 

 rather large yellow-flowered head. Leaves all in a basal tuft. 

 Involucre cylindric, the inner bracts linear and acute, the outer 

 successively shorter and very obtuse, the outermost reduced to 

 orbicular scales, all with green midrib and brdd scarious mar- 

 gins. Receptacle flat, its scarious bracts linear. Achenes oblong 

 or somewhat turbinate, truncate, crowned with a narrow entire 

 border, 10 to 15-nerved, pubescent. Pappus bright white, of 10 

 to 12 plumose bristles in two series (the outer sometimes naked). 



1. A. acaulis Gray, Bost. Journ. Nat. Hist. v. Ill (1845). 

 Pterostephanus runcinatus KelL, Proc. Calif. Acad. iii. 20, f. 4 

 (1863). 



64Zoe v. 34 (1900). 



65 Proc. Am. Acad. xviii. 110 (1883). 



