94 PROCEEDINGS OF THE AMERICAN ACADEMY 



oribus albis vel purpureo tinctis. — Porter & Coulter, Fl. Colorad. 61 ; 

 Rothrock in Wheeler Rep. vi. 154. — Rocky Mountains of S. Colo- 

 rado, at 10,000 to 11,300 feet, Coulter. Wahsatch Mts., M. E. Jones, 

 Rothrock. S. Utah, Ward. Sierra Nevada, California, Bolander, 

 Greene, Lemmon. 



H— -h- Orientalis, stolonifero-casspitosus ; capitulis mediocribus paucis 

 umbellato-cymosis rariusve solitariis. 

 E. BELLiDiFOLius, Muhl. — Canada to Louisiana, west to Illinois. 

 There are indications of an allied species in Oregon. 



* * * * Capitula minora (disco lin. 3-4 lato) pi. m. cymosa : ligulae 

 numerosissimse, angustae, purpureas vel purpurascentes : pappus sim- 

 plex : plantte sparsae e surculis stolonibus filiformibus provenientes 

 perennantes (vel biennes ?). 



E. Philadelphicus, L. ; Torr. & Gray, Fl. ii. 171, ubi synon. — 

 Nearly throughout the United States and British America. 



E. QUERCiFOLius, Lam. ; Torr. & Gray, 1. c, ubi synon. — S. Caro- 

 lina to Texas. 



9, Species humiles, caulibus repentibus seu ramis procumbentibus 

 foliosis apice radicantibus perennantes : ligulaj numerosissimse, angustae, 

 pallidjB : capitula solitaria, longe vel scaposo-pedunculata : pappus e 

 setis pauciusculis. 



* Pappus simplex : folia saepe undulato-dentata seu lobata. 



E. scaposus, DC. Prodr. v. 287 ; Benth. PI. Hartw. 17. K 

 longipes, DC. 1. c. 285. Aster rivularis, Schlecht. — Mexico. 



Var. ? cuNEiFOLius. Hirsuto-pubescens ; ramis plerisque prostratis 

 repentibus ; pedunculis axillaribus scapiformibus ; foliis cuneatis vel 

 obovatis obtusis obtuse grosseque 5-9-dentatis, basi angustata integer- 

 riraa ; pube cinerea adpressa ; involucro liu. 4 diametro. E. scaposus, 

 Torr. & Gray, Fl. ii. 170; Gray, PI. Lindh. i. 11 (vix var. latifolium 

 DC. ex char.). — Sandy sea-shore, Texas. 



He * Pappus duplex, exterior subulato-setulosus : caules floridi scapi- 

 formes, steriles flagelliformi-procumbentes, foliosi, apice demum 

 radicantes et proliferi : folia integerrima, cauliua angusta. 



E. FLAGELLARis, Gray, PI. Fendl. 69. — W. Texas to New Mexico, 

 S. Utah, Colorado. 



Series 2. Species annuse vel biennes, vix unquam montanae. 



* Achenia angusta minus compressa, apice truncato albo-coronulato : 



pappus simplex. 



