68 Notes on the Flora of Dakota and Montana — Leiberg. 



Only one of the order Lahiatm was collected west of the Mis- 

 souri; this was a species of Hedeoma. 



Three species oi Echinospermum^ one Mertensia, and three spe- 

 cies of EritricJdum^ were noted as representing the Borraginacece. 



Phlox cwspitosa^ Nutt., is first found in going westward near 

 the Missouri river, but only on the summit of the highest and 

 stoniest hills; farther west it covers the ground nearly everywhere. 



Asclepias Cornuti^ Decaisne, was supplanted by A. speciosa, 

 Torr., a closely allied species, rather more handsome though not so 

 tall and robust. 



Among the rarer Clienopodiacem^l collected Monolepls chenopo- 

 dioides, Moq., Enrotia lanata^ Moq., Sarcobatus vermiculatns, Torr. 

 (this only in Pyramid Park), Salicornia herbacea, L., and three or 

 four species of Obione. 



Among the Polygonacece^ Eumex venosus^ Pursh, and several spe- 

 cies of Eriogonnm were of frequent occurrence. 



Shepherdiaargentea, Nutt.^ and S. Canadensis^ Nutt., com- 

 monly called ''buffalo-berries," and Efceagnus argenteq, Pursh, the 

 silver-berry, abounded along the streams. 



A low trailing Jimiperus was exceedingly common west of the 

 Missouri, growing everywhere upon the sides of the dry rocky 

 buttes. 



Allium reticvlafum^ Fraser, two species of Zygadenus^ Smilaci- 

 na stellata^ Desf., and Calochortus 6^w;yi/.s'on/, Watson, this last not 

 extending east of Pyramid Park, and Yucca angusfifolia, Pursh, 

 make up the list of Liliacew noted in Western Dakota. 



Scirpus marifimus^ L., was common around alkaline ponds ,to 

 getlier with several undetermined species of Eleocharis. Numer- 

 ous Carices were observed, mostly differing from Minnesota species. 



The Graminem were much more sparingly represented than 

 one would suppose to be the case. West of the Missouri fully half 

 of the grass consisted of a single species, Kceleria cristata^ Pers. 

 The remaining half was divided between a dozen other species, 

 such as Aristida purpurea^ Nutt., an undetermined Calamagrostis 

 near C. striata^ Trin.^ Stipa Mongolica^ Turcz., and *5\ viridula. 

 Trin., Spartina gracilis^ Trin., Brizopyrmn spicatum^ Hook., Bou- 

 teloua hirsuta^ Lagasca, and B. oligostachya^ Torr., which two last 

 commonly pass by the name of "buffalo grass,^' Munroa squarrosa, 

 Torn, and Buchloe dactyloides^ Engelm., the true buffalo grass, 

 the last only occurring in scattered patches here and there. Sev- 



