376 ASTERACEAE. 



1. F. califomica Nutt. Slender, erect, annual, 2 dm. high or 

 usually less; leaves linear or the lowest spatulate; heads ovate, 

 slightly angular; pistillate flowers 8-10-bracteate, their bracts 

 broadly ovate and deeply boat-shaped, somewhat arcuate-incurved, 

 very woolly, with broadish and obtuse hyaline tips; inner bracts 

 oblong, concave, nearly glabrous; achenes narrowly oblong, minutely 

 papillose-granular; pappus of the embraced none; of the others 

 copious. 



Frequent on dry hillsides and plains, especially in sandy soil. 

 April-June. 



26. GNAPHALIUM L. Everlasting. 



Woolly erect or diffusely branched annual biennial 

 or perennial herbs with alternate leaves and discoid 

 heads of pistillate and perfect flowers. Involucral 

 bracts scarious, white or yellowish, imbricated. Recep- 

 tacle flat, naked. Pistillate flowers in several series, 

 their corollas filiform, minutely dentate or 3-4-lobed. 

 Central flowers perfect, their corollas tubular, 5-toothed 

 or 5-lobed. Achenes not ribbed. Pappus a single series 

 of scabrous capillary bristles, sometimes thickened above. 



Pappus bristles not united at base. 



Herbage becoming green in age, more or 

 less glandular and heavy scented. 

 Annual or biennial; stems herbaceous. 



Inflorescence paniculate. 1. G. ramosissimum. 



Inflorescence cymose. 2. G. calif ornicum. 



Perennial; stems woody below. 3. G. bicolor. 



Herbage persistently white-woolly through- 

 out, not glandular and heavy scented. 

 Involucres woolly only at base, the 

 bracts scarious. 

 Bracts greenish-yellow; heads in 



close glomerules. 4. G. chilense. 



Bracts bright white; heads in loose 



panicles. 5. G. microcephalum. 



Involucres imbedded in loose wool, the 



bracts brown. 6. G. palustre. 



Pappus bristles united at base, deciduous in a 



ring. 7. G. purpureum. 



1. G. ramosissimum Nutt. Biennial, erect, 6-15 dm. high, 

 paniculately much branched above the middle; the panicle often 

 rather narrow and virgate; herbage glandular and very sweet- 

 scented, only the stem slightly arachnoid; leaves green on both 

 sides, distinctly decurrent; heads narrow, 4 mm. high, rose color; 

 bracts oblong-lanceolate, acutish. 



Occasional on wooded slopes about Pasadena and Los Angeles. 



2. G. californicimi DC. Biennial, 6-10 dm. high, stoutish, 

 corymbosely branched at the summit, bearing rather loose cymosely 



