OF ARTS AND SCIENCES. 93 



pus exterior manifestus, setulosu3 vel subulato-squamellatus. (f^pe- 



cies nimis affines.) — § Phosnactis, Nutt. in Trans. Am. Phil. Soc. 



1. c. pro parte. 



E. SPECiosus, DC. — Brit. Columbia to Oregon near the coast. 



E. MACRANTHUS, Nutt. 1. c. Involucrum glabrum vel subglabrum : 

 capitula nunquam magna. — Rocky Mountains from Wyoming to 

 S. Utah and New Mexico, 



E. GLABELLUS, Nutt. Gen. ii. 147. JEJ. asper, Nutt. 1. c. — Sas- 

 katchewan and Minnesota to the Rocky Mountains, southward to 

 Colorado and Utah. A polymorphous species as here received. The 

 annexed is an ambiguous form, which but for the involucre would be 

 appended to the foregoing. 



Var. MOLLIS, Gray, Proc. Acad. Philad. 1863, 64. Pube (etiam 

 involucri) brevi molli patente subcinereus ; caule folioso. — Colorado 

 Rocky Mountains, at 8,000 to 9,000 feet. 

 * * * Capitula majuscula vel mediocria : ligulfe minus nuraerosae 50- 



70 vel pauciores, latiusculoe : corollae disci sursum pauUo ampliataj, 



dentibus majoribus : pappus simplex : caules erecti mono - oligo- 



cephali : folia inferiora quandoque parce serrata. Transitus ad 



Aster um. 

 •f- Subalpin^e vel alpestres, occidentales, foliis laste viridibus: caules 



e rhizomate baud stolonifero subpedales ad bipedales, macriores 



(4-8-pollicares) monocephali. 



E. SALSUGiNOSUS. Rhizomatibus brevibus crassiusculis ; foliis gla- 

 bratis vel subglabris oblongis seu lanceolatis, imis obovatis vel spathu- 

 latis, superioribus apiculato-acuminatis, summis subulatis : involucro 

 laxo glanduloso-pubero seu viscido, bracteis attenuatis apice patentibus ; 

 ligulis purpureis seu violaceis. Aster sahuginosus, Richards. App. 

 Frankl. ed. 2, 32; Hook. Bot. Mag. t. 4942. A. Unalaschensis, Less. 

 in Linn. vi. 124. — Var. angustifolius : forma macra, angustifblia, 

 Californica. — Wet ground, Kotzebue Sound to northern Rocky Moun- 

 tains and subarctic plains eastward, along the higher mountains to 

 California, Utah, and New Mexico. 



Var. HowELLii. Caule magis oequaliter folioso ; foliis ovatis 

 eximie acuminulatis ; ligulis tantum 30-35 latioribus albis. — Cascade 

 Mountains, Oregon, May, 1880, Joseph and T. J. Howell. 



E. CouLTERi, T. C. Porter. Rhizomatibus gracilibus ; foliis pubes- 

 centi-hirsutis vel glabratis pallide viridibus ssepius oblongis parce 

 acute denticulatis vel integerrimis ; involucri bracteis minus attenuatis 

 vix patentibus undique vel basi villosis et glandulosis ; ligulis angusti- 



