126 Rydherg : Rocky Mountain flora 



Colorado: Parlin, Gunnison Co., '1901, B. H. Smith 118 

 (type); Gunnison, 1901, Baker 558; Antonito, 1898, Earlc 42 ; 

 Sargent, 1896, Clements 12J ; Villa Grove, 1896, Clements I2j ; 

 Leadville, 1901, Underwood & Selby 4.94.. 



Erigeron Earlei sp. no v. 



Perennial ; stems several, simple, 3-4 dm. high, strigose ; 

 basal leaves 5-6 cm. long, narrowly oblanceolate, strigose on both 

 sides, often callous-denticulate ; stem-leaves linear and sessile, and 

 reduced; heads about 3, 6 mm. high; bracts linear-subulate, 

 acuminate, in about 2 series, nearly equal, densely strigose ; rays 

 numerous and very narrow, white, about 8 mm. long. 



This is related to E. glabellas, but differs from all its relatives 

 by the appressed, dense, strigose pubescence. 



Colorado : Antonito, 1 898, Earlc. 



Erigeron Peasei sp. nov. 



Depressed cestipose perennial ; stem 5-8 cm. high, scapiform 

 or with 1-2 leaves, appressed-pubescent ; basal leaves about 2 cm. 

 long, petioled, their blades oblanceolate, acute, strigose; stem-leaves 

 linear, sessile ; heads solitary, 6-7 mm. high ; bracts linear -subu- 

 late, scarcely at all imbricated, acuminate, sparingly hirsute ; disk 

 about 1 cm. wide ; rays numerous, about 7 mm. long and 1 mm. 

 wide. 



This is nearly related to E. radicattis, but differs in the ap- 

 pressed pubescence and broader leaves. 



Colorado : Lake City, 1878, H. N. Pease (type in herb. 



Columbia Univ.). 



Erigeron vetensis sp. nov. 



Densely cespitose-puvinate perennial ; stems 5-8 cm. high, 

 hirsute, few-leaved ; leaves linear or linear-oblanceolate, hirsute, 

 2-4 cm. long ; heads solitary, about 7 mm. high ; bracts linear, 

 acuminate, hirsute as well as slightly glandular-puberulent ; rays 

 purple, 8-10 mm. long, over I mm. wide ; achenes strigose ; 

 pappus more or less double. 



In dry places on high mountains of southern Colorado at an 

 altitude of 2400-3000 m. It is intermediate between E. radicatus 

 and E. glandnlosus, resembling the former most in pubescence, 

 and the latter in habit. 



Colorado : Mountains near Veta Pass, 1900, Rydberg& Vree- 

 land 5427 (type) ; Veta Mountain and Ojo, 5421, 5422 ; West 

 Spanish Peak, 5424. 



