86 Sierra Club Publications. 



lilac rays % in. long; bracts of the involucre green and leaf-like. 

 This grows in the wet meadows and was collected at Horse Corral 

 Meadow. 



Aster Andersonii Gray (Oreastrum Greene). Stems 

 erect from a tap-root, X-i ft. high, smooth, except near the head. 

 Leaves chiefly at the base, grass-like, pointed, 2-5 in. long; the 

 few on the stems similar but shorter. Heads terminating the 

 stems, solitary, an inch or more in diameter, with purple rays % 

 in. long, minutely toothed at apex ; bracts of the involucre often 

 tinged with reddish-purple. This is common in wet places and 

 was collected at Summit Meadow, Bullfrog Lake and Bubbs 

 Creek. The plants at the higher altitudes were much smaller, 

 with stems shorter and leaves narrower. 



Erigeron frondeus Greene. Stems simple, a foot or so high, 

 erect, somewhat rough pubescent. Basal leaves elliptical, lance- 

 olate, on petioles about as long as the blades ; stem leaves ovate- 

 lanceolate, sessile, sharply serrate. Heads few, 1-4, on long, 

 bracted peduncles, i-i^ in. in diameter ; bracts of the involucre 

 very narrow, glandular and hairy, in a single row ; rays white, 

 very narrow, numerous, y^ in. long. In meadows and moist 

 places at the upper elevations. The only specimen from the 

 region was collected by Miss Catherine E. Wilson, with the 

 locality uncertain. 



Erigeron ssilsuginosus angustifolius Gray. Stems erect, 

 simple, from creeping root-stocks, about a foot high, almost 

 smooth near the base but with an appressed pubescence above. 

 Radical leaves linear-oblanceolate, tapering, but without distinct 

 petiole, 1-3 in. long, strongly nerved, pointed at apex; stem 

 leaves similar but broader and shorter and distinctl}' sessile. 

 Heads few, 2-4, on long peduncles at the summit of the stem, 

 i-iJS^ in. in diameter; bracts of the involucre very narrow and 

 pointed, glandular but not hairy ; rays rose color, generally 

 3-toothed with narrow, sharply pointed teeth. This beautiful 

 Erigeron grows at the upper elevations, below timber-line. It 

 was collected on the upper part of Bubbs Creek. 



Erigeron Breweri Gray. Stems woody and much branched 

 with slender, wand-like branches, erect, terminated with 1-3 

 heads, grayish-green with a close, rough, appressed pubescence. 

 Leaves linear, sessile, the longest about an inch long, obtuse, 

 becoming minute on the flowering stems. Heads 34^ inch in 

 diameter; bracts of the involucre in several rows, the smallest at 

 base, with a keeled, green, central ridge; rays purple, % in. long; 



