1907] Hall. Compositae of Southern California. 95 



Catalina Island, ace. to McClatchie ; 16 near Los Angeles; San 

 Bernardino ; Riverside ; Temescal Wash ; bottom lands along the 

 Colorado River; etc. 



26. BACCHARIS L. 



Perennials, mostly shrubs but some herbaceous from a woody 

 base, commonly resinous or glutinous, rarely pubescent. Leaves 

 alternate. Heads many-flowered. Involucre imbricated. 

 Flowers whitish or yellowish, dioecious. Staminate flowers with 

 tubular corolla slightly dilated at the throat, the limb cleft into 

 5 linear lobes; ovary abortive; style present. Corolla of the 

 pistillate flowers very slender and thread-like, obscurely toothed 

 at apex, the teeth erect, not spreading. Pappus in the sterile 

 plant of scanty capillary bristles; in the fertile copious and 

 often very long. 

 Evergreen shrubs. 



Leaves all less than 5 cm. long. 



Keceptacle naked: pappus of fertile flowers copious, becoming 6 to 

 12 mm. long. 



Leafy up to the glomerate heads with obovate obtuse leaves 



1. B. pilularis. 



Less leafy; the leaves mostly linear or oblong. 



Pappus of sterile flowers bearded at tip; of fertile flowers 10 

 to 12 mm. long 2. B. Emoryi. 



Pappus of sterile flowers naked at tip; of fertile flowers 6 to 

 8 mm. long 3. B. sarothroides. 



Eeceptacle chaffy: pappus of fertile flowers scanty, 3 mm. or less 



long 4. B. scrgiloides. 



Leaves 5 to 12 cm. long (except a few upper ones), willow-like. 



Cymes terminating main branches: leaves denticulate, 3-nerved: 



stems herbaceous above 8. B. glutinosa. 



Cymes terminating short lateral branchlets: leaves mostly entire, 



inconspicuously 3-nerved: stems shrubby throughout 



9. B. viminea. 



Herbaceous perennials, the base sometimes woody. 

 Herbage pubescent: leaves linear. 



Leaves very small, entire 5. B. brachyphylla. 



Leaves 2 to 5 cm. long, acutely serrate 6. B. Plummerae. 



Herbage glabrous but resinous: leaves lanceolate 7. B. Douglasii- 



iEryth. ii. 125 (1894). 



