32 BULLETIN UNIVERSITY OF MONTANA 



Saxifraga caespitosa L. Lambert "Valley and Sperry Glacier. 



Saxifraga rivularis L. Lambert Valley and Sperry Glacier, McDonald 

 Lake in the Mission Mts. 



Saxifraga debilis Eng. Reported from Sperry Glacier by Umbach, but 

 may be the above. 



Saxifraga cernua L. Lambert Valley. 



Saxifraga Jamesii Torr. Mt. Lolo (Elrod). A very unexpected find. One 

 would expect to find S. heucheriforme (Rydberg. Torr. Bull. 24 247 as 

 Therofon) there instead. 



Saxifraga arguta Don. MacDougal and McDonald Peaks, Tellow Bay, 

 Alta. Common throughout the Mission and Swan Mountains at high eleva- 

 tions, and in the (Sperry Glacier region. This is S. odontophylla Piper and S. 

 punctata of recent authors. Piper is right in saying that the obovata-leaved 

 S. punctata cannot be the same as this reniform leaved plant, but his name 

 is preoccupied, and, in addition, S. arguta was well characterized by Hooker. 

 It is easily separable from S. Nelsoniana by the clawed petals, as Piper has 

 said, the latter being a Pacific Coast plant. 



Saxifraga Mertensiana Bong. Darby at Como Peak, Sperry to Blackfoot 

 Glacier. 



Saxifraga stellaris L., S. Nutkana Moq., S. Bongardi Presl. There is a 

 slight difference between this and S. stellaris, but that seems to be a very 

 variable species. Common in the Sperry Glacier region. Leaves very 

 variable. 



Saxifraga reflexa Hook. McDonald Lake in the Mission Mountains, Sperry 

 Glacier. 



Saxifraga occidentalis W^at., Micranthes Alleni and aequidentata Small 

 Petals either entire or notched in the same flower, and either clavate or 

 filiform also. MacDougal Peak, McDonald Lake in the Mission Mountains, 

 Sperry to Blackfoot Glacier. Elrod Peak and Missoula (Elrod). 



Saxifraga Oregana Howell., S. Sierrae Coville. This is the western rep- 

 resentative of S. Pennsylvanica but with broader petals. The typical form 

 has large and conspicuous petals, but they vary greatly down to S. Sierrae, 

 and probably includes also S. Montanensis Small. It is a very robust plant. 

 Mt. Haggin. 



Saxifraga integrifolia Hook. This abounds in alpine places to the south 

 of our region and adjoining it, but farther south passes by imperceptible 

 degrees into 



Saxifraga integrifolia var. rhomboidea (Green Pitt., 3. 343 as species). 

 This is reported from Missoula and Deer Lodge. It grows at Lima. This 

 again varies into 



Saxifraga integrifolia var, apetala (Piper Torr. Bull. 27 393 as species). 



Leptarrhena amplexifolia (Sternb.) Seringe. Sperry to Blackfoot Glacier 

 This grows in large patches from underground stems. Leaves waxy-green 

 above and white below. 



Boykinia major Gray. Hamilton. 



Heuchera parvifolia var. dissecta. Leaves 5-7-lobed to or below the mid- 

 dle. Petals double the calyx lobes. Anaconda and Durant. 



Heuchera cylindrica Dougl. Wheelock is certainly justified in putting al' 

 the variant forms into one species as there is a complete transition through 

 all. This replaces S. rubescens on cliffs, which species abounds to the 

 south in drier situations. The typical form with long red hairs on the 

 petioles not yet found in our region. 



Heuchera cylindrica var. glabella (T. & G.) Wlieelock. Bull Island, Mis- 

 soula, Bigfork, Coeur d'Alene Lake, Ravalli, Alta. Also gathered by all pre- 

 vious collectors. 



Heuchera cylindrica var. ovalifolia (Nutt.) Wheelock. Lambert Valley 

 Upper Marias Pass, Lake McDonald to St. Mary's in the Sperry Glacier 

 region. Alpine. 



Heuchera cylindrica var. tenuifolia Wheelock. MacDougal Peak. 



