XXX 



BOTANT. 



Rocky Mountains. The same method of arrangement is followed in the sub- 

 sequent hsts. 



Alkalme Species. 



Arabis longirostris. 

 Thelypodium Nuttallii. S. 



sagittatum . 

 Cleomella parviflora. S. 



plocasperma. 



longipes. Mex. 

 Astragalus pterocarpus. 

 Ivesia Kingii. 

 Aster Nuttallii. 

 Aplopappus tenuicaulis. 

 Crepis Andersonii. 

 Cressa Cretica. Mex. 

 Lycium Andersonii. 

 Erythrsea Nuttallii. 

 Monolepis pusilla. 

 ■ Obionephyllostegia. 

 pusilla. 

 Kochia prostrata. 



Schoberia occidentalis. 

 Halostachys occidentalis. 

 Fimbristylis thermalis. 



Lepidium montanum. Mex. 

 Nitrophila occidentalis, 

 Milla maritima. 



Monolepis chenopodioides.^ S. 

 Suseda depressa. 



fniticosa. S. R. 

 Vilfa asperifolia. R. 

 Spartina gracilis. 



Sarcobatus vermiculatus. S, 

 Euphorbia serpyllifolia. 

 Vilfa depauperata. 



Ranunculus Cymbalaria. Mt Arc. 

 Spergularia media. Mt. Subarc. 

 Heliotropium Curassavicum . Mex. 

 Suseda maritima. 

 Triglochin maritimum . Arc . 

 palustre. Subarc. 

 Scirpus maritimus. S.. 

 Glyceria distans. Subarc. 

 Brizopyrum spicatum, var. 

 Panicum capillare . 



dichotomum . 



Aplopappus lanceolatus. 

 Eritrichium Californicum . Mt. S . 

 Blitum polymorphum. ' 

 Obione argentea. 



Sesuvium Portulacastrum. 

 Salicornia herbacea. 



The Ranunculus^ Eritrichium, Aster, Euphorbia and Panica are not ex- 

 clusively alkaline, and of these the first two are as often found in the moun- 

 tains. Spergularia media was only collected at a salt spring in the "Wahsatch 

 and is added to complete the number of saline plants found, though not 

 properly belonging in this list. The only shrubby or subshrubby species 

 among them are the Grayia, Halostachys, Sarcohatus, Lycium, Kochia, and 

 Suceda fruticosa. 



There is a very much larger number of species belonging to the second 

 group, aquatics or subaquatics, occupying the margins and banks of the lakes, 

 springs and streams of purer water, or growing in the meadows or river 

 bottoms in the near neighborhood of moisture — all properly fresh-water plants, 

 though the localities in which they are found may often be to a considerable 

 degree alkaline. Many of these are of course often found also on stream- 

 banks in the canons, while others which belong to the mountain flora occasion- 

 ally follow the streams into the valleys ; the first are indicated by (Mt.,) 

 the last will be noted in the list of mountain plants. As might be expected 

 they are generally of very wide range. But five species can be considered 

 peculiar to the Great Basin, aU little known and in some cases questionable. 

 Fifteen species extend only westward and ei^ht only eastward, while forty- 

 three range from the Pacific slope toward the east, all but ten (R) passing 

 beyond the Rocky Mountains and nine approaching or crossing the arctic 



