Eupatory Tribe 391 



flowers. Involucre oblong to hemispheric, its bracts im- 

 bricated in 2-several series. Receptacle flat, convex or 

 conic, naked. Corolla regular, its lobes slender, 5-lobed 

 or 5-toothed. Style-branches flattened above, stigmatic 

 at the base. Achenes 5-angled T truncate. Pappus of 

 numerous capillary usually scabrous bristles, arranged 

 in a single row. 



1. E. Pasadense Parish. Stems slender and apparently her- 

 baceous, glandular-puberulent ; upper leaves opposite, short- 

 petioled, ovate-deltoid, acute at apex, cordate at base, serrate, 

 thin, minutely atomiferous beneath; cymes rather compact, on 

 dichotomous peduncles longer than the leaves; pedicels 1 cm. 

 long, with 2-3 linear bracts; heads 20-30-flowered ; involucral 

 bracts lanceolate, firm, 4 mm. long, prominently 2-ribbed, the 

 acute tips softer; corolla 4-5 mm. long, glabrous, white, the fili- 

 form tube twice the length of the abrubtly expanded throat; 

 pappus scabrous, equaling the corolla, early deciduous ; achenes 

 smooth, 5-angled, slightly arcuate, 1.5 mm. long; receptacle 

 somewhat rounded. 



Wet bank of a pool in a canyon south of Pasadena, McClatchie. 



2. COLEOSANTHUS Cass. 



Herbaceous perennial or partly shrubby plants, with 

 opposite or alternate leaves and discoid heads of whitish 

 or pink flowers in panicles or cymes. Involucral bracts 

 well-imbricated in several series, striate. Receptacle 

 flat or convex- Achenes 10-striate or -ribbed. - Pappus a 

 single row of numerous rough or serrate bristles. 



1. C. Californicus (T. & G.) Kuntze. Shrubby at base, 6-9 

 dm. high, paniculately branched ; herbage somewhat glandular- 

 puberulent; leaves alternate, ovate, somewhat triangular or 

 slightly cordate, obtuse, irregularly crenate-tbothed, 3-ribbed 

 from the base, .veiny, roughjsh, 2-4 cm. long, shortrpetioled ; 

 heads spicate or racemose along leafy branches, about 1 cm. high, 

 10-15-flowered ; involucral bracts with thinnish, mostly obtuse 

 straight tips. (BrickelUa Calif ornica Gray.) 



Occasional in the canyons of the San Gabriel and Santa Ana Mountains. 



