319 COMPOSIT A EUCEPHALUS 
? OREASTRUM 
oud almost woolly herbaceous anfl taper pointed the margins serrulate- 
oe Rib not woolly er ciliate. Mt, Adams, Washington. Suksdorf No. 
E. ledophyllus Greene I. c. Aster Engelmannii var. ledophyllus Gray, 
Stems 1-2 feet high, rather strict: leaves lanceolate, mucronate-apiculate. 
entire or lower, with a few apiculate teeth toward the apex 1-2 inches 
long, cottony tomentulose beneath, at least when young, the lower often 
obtuse: heads solitary, or few ina simple paniculate cyme: bracts of the 
involucre lanceolate to linear, very acute or -acuminate, the outer succes- 
sively shorter but similar: rays purple, 10--12 lines long: achenes hirsute 
at the summit. On the-highest parts of the Cascade mountains. 
E. tomentellus Greene 1. c. Sericocarpus tomentellus Greene Pitt. 1, 283. 
Strict, erect 2-3 feet high, paniculately branched above, leaves ovate- 
lanceolate, acute or acutish barely apiculate, entire, 1-2 inches long, to- 
mentulose beneath, smooth above: heads small and narrow: invyolucral 
bracts, strict with loose tomentose tips, in several ranks, the outer succes- 
sively shorter and passing into ordinary leaves: rays usually wanting 
rarely 1 or 2: achenes minutely appressed-hirsute. On dry ridges eastern 
base of the Coast mountains near Waldo, Oregon, 
E. glabratus Greene, Pitt. iii, 56. Stems strict, 1-2 feet high: glab- 
rate throughout: leaves ovate-lanceolate to lanceolate,acute 8-18 lines long, 
entire, conspicuously reticulate veiny: heads rather few, small and nar- 
row: bracts of the involucre linear, abruptly acute, in several ranks, the 
outer successively shorter and more lanceolate: rays none : achenes hirsu- 
tulous. On dry ridges of the Siskiyou mountains. 
E. glaucescens Greene l.c, Aster Engelmannt var. glancescens Gray 
Herbage, pale green and smooth throughout: stems mostly slender, 1-3 
feet high: leaves somewhat glaucous, lanceolate, often acuminate, 2-3 
inches long, 2-7 lin-s broad, entire: heads large, one to several in an open 
terminal cyme: bracts of the involucre lanceolate, often acuminate in few 
ranks, the outer successively shorter: rays 15-20, 8-12 lines long: achenes 
appressed-pubescent. On Mt. Adams, Washington and vicinity. 
E. paucicapitatus ‘‘Greene 1. c.Aster paucicapitatus Robinson. Sim- 
ple, monacephalous: stems decumbent at base, 6-18 inches high: herbage 
glandular-puberulent even somewhat scabrously so, only the margins of 
the oblong-lanceolate obtuse thinnish leaves minutely woolly-ciliate: bracts 
of the broad involucre not very unequal or much imbricated, lanceolate 
and herbaceous though with a distinct carinate mid-vein: rays few, their 
color doubtful: pappus rather copious and fine, the bristle in no degree di- 
lated upwards: achenes sparsely appressed-pubescent. Olympic moun- 
tains, Washington. Piper.’’ 
E. Covillei Greene Pitt. iii, 162. ‘Tufted stems more than a foot high, 
somewhat flexuous, racemous-corymbose from near the middle, these and 
the lower face of the leaves sparingly tomentulose: leaves oblong-lance- 
late, acute,entire: bracts of the narrowly campanulate involucre granular- 
puberulent, well imbricated, herbaceous and scarcely carinate, lanceolate 
and oblong-lanceolate: rays few (5-7), long and narrow, deep violet. Near 
Crater Lake, Oregon. Coville.”’ 
19 OREASTRUM Greene Pitt, iii, 146, 
Acaulescent perennials with narrow  sub-coriaceous entire 
leaves and scapiform monacephalous branches from a stout some- 
what fusiform and not freely branching taproot. Bracts of the 
inyolucre narrow, sub-equal in about 2 series. Rays rather nu- 
merous, elongated, purple. Disk carollas tubular-funnel form, 
