Aster Tribe 401 



corymbose or panicled. Involucre hemispheric to turbi- 

 nate, its bracts much imbricated, scarious except the 

 herbaceous tips. Receptacle pitted. Ray-flowers sterile. 

 Anthers appendaged at the apex. Style-appendages 

 comose or with a bearded tuft. 



1. C. virgata Benth. Stems erect, often 1 m. high; herbage 

 floccose-woolly ; leaves narrowly obovate to oblanceolate, serrate- 

 toothed above ; inflorescence a large virgate panicle, viscid with 

 short-stalked glands, usually bearing many heads; involucre 

 turbinate-campanulate, 10-12 mm. broad; bracts rather broadly 

 linear, their tips usually somewhat reflexed. 



Common in sandy soil near the coast. June-August. 



2. C. virgata Bernardina. Stems erect or ascending, 6-8 

 dm. high; herbage densely floccose-woolly; leaves oblanceolate 

 or oblong, serrate-toothed above ; inflorescence somewhat virgate- 

 branched ; heads not numerous, only the involucres and the 

 uppermost portion of the peduncles glandular; involucres turbi- 

 nate-campanulate, 6-8 mm. broad; bracts narrowly linear, their 

 tips somewhat recurved. 



Common on the dry plains of the interior valleys, especially in the San 

 Bernardino Valley. The type of this variety is the author's no. 2931, collected 

 at Mentone. 



15. ASTER L. 



Leafy stemmed autumnal perennial or rarely annual 

 herbs with alternate leaves and panicled or somewhat 

 corymbose heads. Involucre hemispheric to campanu- 

 .late, its bracts imbricated in several series, tips herbace- 

 ous. Ray-flowers many, commonly bluish or pinkish, 

 pistillate. Disk-flowers perfect, yellow changing to red- 

 purple ; corolla-tube slender ; limb funnelform. Style- 

 branches flattened, their appendages subulate, lanceo- 

 late or ovate, acute. Pappus-bristles slender, numerous, 

 scabrous, usually in 1 series, dull white. 



* Perennials. 



1. A. Menziesii Lindl. Strictly erect, about 4-6 dm. high, 

 usually simple and very leafy up to the mostly simply racemose or 



