NEW SPECiES OF MUSCI. 41 



their appearance at the mountain-slopes, on ironstone and 

 basaltic rocks, with the Myginda myrtifolia and Arcto- 

 staphylos for undergrowth. The other intermediate localities 

 of interest, are already described, or will be mentioned 

 when treating of similar ones, in the sixth or the Green 

 Mountain, or Grassy, Region, of Upper Oregon. Plants, 

 the belts of which we traversed up to the Wind-river Moun- 

 tains, are Athanasia6; Astragalus 21, 50, 52, 120, 125, 

 and others; (Enothera albicaidis; Calochortus, 68, and two 

 others ; Aplopappus, 114; Townsendia ? 1 15 ; Hordeumjuba- 

 tum ; Plantago eriopoda; Eriogonum, 139; Hymenopappus, 

 141, 142; Castilleja, 150, 511; Delphinium, 163; Cleome* 

 inteyrifolia ; Cynoglossum, 186; Pentstemon, 238, 239 ; Erio- 

 gonum, 241, 661 ; Fremontia vermicular is, Vesicarice (re-ap- 

 pearing again, as well as Fremontia, on the west slope of the 

 Rocky Mountains) ; (Enothera, 647 ; Aplopappus, 7 ; Apar- 

 gia, 40 ; Ranunculus pedatifidus, Hook. ? (1 10) ; all the Poten- 

 tillce except 249 and P. Norvegica ; Cymopterus glaucus, and 

 glomeratus,f with many others of less general character. 



(To be Continued.) 



The distinctive characters of some new species of Musci, col- 

 lected by Professor William Jameson, in the vicinity 

 of Quito, and by Mr. James Drummond at Swan 

 River. By Thomas Taylor, M.D. 



Quito is situated on the base of Pichincha, a mountain 

 under the equator, whose summit is covered with perpetual 

 snow. On its sides are found representatives of all the 

 genera and species of Mosses of the known world. The 

 far distant and till recently wholly uninvestigated western 



* Cleome integrifolia is a very common plant as far south-west as the 

 waters of the Colorado, where it at once disappears, and Cleome aurea, 

 Hooker, is found in its stead, down to the shores of the Pacific. 



t These are two of the many tuberous (dwarf Umbellifera, common in 

 the higher regions here, and especially in Upper Oregon. The Pawnee 

 Indians gather the tubers for food. 



