48 MINNESOTA STUDIES IN PLANT SCIENCE 



Wyoming: near Mammoth Hot Springs, alt. 6,000 ft., July, 1893, and 7,000 ft, 

 July, 1893, both along meadow borders, F. H. Burglehause (UMH) ; Mammoth Hot 

 Springs, July, 1893, F. H. Burglehause, referred to 5. montanensis by Engler and 

 Irmscher (USNH 45808). 



Saxifraga napensis Small, Bull. Torr. Bot. Club 25:316. 1898. 

 Mkranthes napensis Small, N. Am. Fl. 22:2:140. 1905. 



A tall graceful species bearing a strong resemblance to Saxifraga fragosa 

 Suks. It is based on a collection of J. W. Bigelow (Whipple's expedition) 

 and George Thurber No. 496 (Small, I.e.), Napa Valley, California. There 

 is a discrepancy between the original description {I.e.) and that in the North 

 American Flora (I.e.). In the latter the petals are described as "wanting." 

 The descriptions of the calyx and the carpels also differ. The leaves are 

 described as pubescent. In the specimens cited below they are glabrous. 

 No mature fruit available (Plate XVII). 



Distribution. — Not definitely known ; apparently restricted to a small region north 

 of Tulare Lake, California. "California," according to Small (I.e.). 



Specimens examined : 



California : region of Dinkey Creek, Fresno County, alt. 7,500 ft., June 25, July 

 15, 1900, Hall and Chandler, No. 386 (UMH, two sheets; MBG 84426). 



Saxifraga nidifica Greene, Erythea 1 :222. 1893. 

 Saxifraga plantaginea Small, Bull. Torr. Bot. Club 23 :366. 1896. 

 Saxifraga columbiana Piper, Bull. Torr. Bot. Club 27 :393. 1900. 

 Mieranthes eohtmbiana (Piper) Small, N. Am. Fl. 22:2:135. 1905. 

 Mieranthes plantaginea Small, I.e. 



Receptacle deep ; ovary deeply immersed in the gland ; follicles stout, erect 

 or not strongly spreading; beaks stout, spreading; stigmas globose, at length 

 flattened, thick. Gland conspicuous, fleshy, at length rugose, verrucosa or 

 convoluted, the margin lobed, at first crowding the base of the calyx, at 

 length elevated and persisting as a distinct flange around the follicles. Fila- 

 ments subulate, flat, uncinate, mostly shorter than the sepals, often ver}'' 

 short; anthers commonly large, the margins purple with age. Sepals 1.5-3.0 

 mm., oblong to triangular-ovate or deltoid, at length reflexed, acute to obtuse 

 or rounded at apex, margins entire or denticulate; 1-2 nerved, occasionally 

 more, the nerves simple or branched, reaching to or beyond middle, free or 

 uniting with the mid-nerve below the apex. Petals 1-3 mm., sometimes very 

 small to minute, oblong, elliptic, obovate to spatulate-orbicular, varying 

 greatly in the same individual and even in the same flower ; acute, obtuse, to 

 rounded and retuse at apex, orbicular forms with a more or less clawlike 

 base ; mid-nerve simple or with one or more elongated branches, these some- 

 times coalescing with mid-nerve below apex. Seeds thick, fusiform, some- 

 times pointed or slightly winged at the ends and marked with more or less 



