SOME ERIGERON SEGREGATES. 215 



rigid and ascending, there is still a suggestion of E. flagellaris 

 in its aspect. 



The present study must be concluded by diagnoses of species 

 belonging to various groups of the membership of the genus. 



Erigeron viIvLOSUlus. Stems tufted, 3 to 6 inches high, 

 very leafy to the summit with a foliage large for the plant, 

 mostly monocephalous, the heads short-peduncled, hardly 

 surpassing the foliage ; leaves of lower part of stem oblanceo- 

 late, more or less definitely broad -petiolate, the others lance- 

 oblong and sessile, all entire, acute or at least acutish, from 

 2 J^ inches long in the lowest to Ij^ in the uppermost, all parts 

 of leaf and stem, especially the stem, almost hoarily villous- 

 hirsute ; involucre J^ inch broad, its bracts equal, biserial, the 

 outer series strigose, the inner glabrous ; rays very narrow, 

 not excessively numerous, deep violet-purple, the head with 

 these expanded an inch across. 



Grassy summit of Mt. Angeles, western Washington, at 

 6000 feet, J. B. Flett, 12 Aug. 1911. A member of the leafy 

 stemmed group to which E. macranthus and speciosus belong, 

 but a dwarf subalpine, almost wooly-looking plant. 



Erigeron anicularum. lyow perennial with one or more 

 subscapiform assurgent or ascending stems 6 inches long, 

 arising out of a tuft of upright lanceolate basal leaves 1 to 2 /^ 

 inches long, entire, or some with a few serrate teeth, these 

 and the few lance-linear stem leaves of a pale green, also 

 subcinereous with a fine short strigose pubescence ; heads 1 or 

 2, of middle size, the involucres hemispherical, Vo. inch wide 

 when pressed ; bracts rather broadly linear, not only acute, 

 naked and very thin at tip but mainly strigulose-hairy, with 

 traces of minute glandular dots where the pubescence is thin- 

 nest : rays rather short, numerous, narrow, white. 



Collected on Old Wives' Creek, Assiniboia, 23 May, 1895, 

 by Prof. John Macoun, n. 10850 of Canad. Geol. Survey. 



