34 BULiLETIN UNIVERSITT OF MOiSTTANA 



Ribes oxyacanthoides K The typical form does not seem to grow in tiie 

 west. 



Ribes oxyanthoides var. saxosum (Lindl.) Colville, R. inerme Rydberg, R. 

 vallicola G-reene. This is the common smooth gooseberry of the streams, 

 growing under willows at low elevations. Missoula. The form corresponding 

 to R. imerme, with long peduncle, grows at Lima and St. Ignatius Mission. 

 The ripe fruit is very palatable. Belton, Below Gunsight Lake, Mission 

 Creek, Monida. 



Ribes setosum Lindl. Anaconda, Ravalli, Alta, McDonald Lake in the Mis- 

 sion Mountains. 



Ribes irriguum Dougl. Fruit sometimes with a few scattered prickles 

 and sometimes white. Probably this and R. setosum are not distinct. Tlie 

 plants that correspond to R. setosum are nearly smooth but with distinct 

 cylindrical calyx, short peduncles, and sometimes is very setose, the species 

 (R. setosum) is described as pubescent and very setose. What corresponds 

 to R. irriguum has softly pubescent leaves and evident peduncles, and 

 campanulate calyx. Bigfork, Yellow Bay, St. Ignatius Mission, MacDougal 

 and McDonald Peaks, Bull Island. Dayton, Hot Springs, Missouia, Ravalli. 

 Also Missoula (Elrod). I fail to see any good character to separate Green's 

 R. cognatum or Blankinship's R. camporum. 



Potentilia Monspeliensis L. Rexford and Whitfish, Ravalli, Upper Marias 

 Pass. At the following places are the var. Norvegica, Bigfork, Daphnia 

 Lake, Schultze's cabin. 



Potentilia argentea L. "Whitfish, apparently introduced. 



Potentilia dissecta Pursh. MacDougal and McDonald Peaks, Lambert Val- 

 Ipy, Sperry Glacier. 



Potentilia dissecta var. glaucophylla rLehm.) Wat. MacDougal Peak 

 Same locality by Miss Norton and I^mtaach. 



Potentilia decurrens (Wat.) Rydberg. Blackfoot Glacier. 



Potentilia gracilis Dou.gl. 'Wild Horse Island. 



Potentilia Blaschkeana Turcz. Alta, Ronan, Upper Marias Pass, S-var 

 Lake by Elrod. A doubtful species. 



Potentilia Nuttallii Lehm. Also a doubtful species. Alta, Monida. Mis- 

 soula and St. Ignatius Mission (Elrod). 



Potentilia ctenophora Rydberg. Monida, Missoula by Elrod. 



Potentilia flabellifolia Hook. Ronan. 



Potentilia Pennsylvanica L. Garrison and Lima. 



Potentilia Hippiana Lehm. Browning. 



Potentilia Anserina L. Frequent at low elevations throughout. 



Potentilia pseudorupestris Rydberg. This probably includes convallaria. 

 On all the high peaks from Alta northward. The convallaria form at 

 Garrison. 



Potentilia glutinosa Nutt. Alta to Bigfork on prairies and rocky Hillsides 

 at low elevations. This may include P. Wrangeliana which was found 

 at Alta. 



Potentilia palustris (L.) Scop. Common in swamps at low elevations from 

 Alta northward. 



Geum ciliatum Pursh. Common in meadows at low elevations from Alta 

 northward. 



Geun rivale L. Bigfork, Below Gunsight Lake. Also Missoula (Elrod) 

 and Rost Lake (MacDougal). 



Geum strictu.m Soland. Ravalli. 



Geum macrophyllum Willd. Common from Alta northward. 



Purshia tridentata (Pursh) DC. Common on the western side of Flathead 

 Lake, also on McDonald Peak. 



Dryas Drummondii Rich. This seems to be rare. McDonald Peak and 

 Blackfoot Glacier, alpine. The other species is very common. 



Cercacarpus ledifolius Nutt. Alta. This has the habit of the var. intri- 

 catus but the loaves are nearer typical. 



