I38 UNIVERSITY OF MISSOURI STUDIES [286 



is probably this plant (cf. Coulter-Nelson's New Manual of 

 Rocky Mountain Botany, p. 240). 

 Montana and Idaho to Colorado. 



522. M. arguta (D. Don) Small [Saxifraga arguta D. Don; 

 S. denudata Nutt. ; 6". punctata Hook., in part; not L.]. 

 Smooth saxifrage. 



In springy places and along streams ; mountains between 

 Sunshine and Ward; Massif de 1' Arapahoe (Rydberg). 

 Streams near Bloomerville, and on Arapahoe Peak, 9000- 

 12000 ft. (Daniels, 308). 



Montana to British Columbia; New Mexico to Cali- 

 fornia. 



213. LEPTASEA Haw. 



523. L. chrysantha (Gray) Small [Saxifraga chrysantha 

 Gray]. Golden saxifrage. 



Toward summit of Arapahoe Peak, 13000-13500 ft. (Dan- 

 iels, 949, collected by Mrs. T. D. A. Cockerell). 

 Colorado and New Mexico. 



524. L. Hirculus (L.) Small [Saxifraga Hirculus L.]. Arc- 

 tic SAXIFRAGE. 



In wet places at Caribou (Rydberg). Redrock lake, 10100 

 ft. (Ramaley & Robbins). 



Greenland to Alaska; Colorado to British Columbia: 

 Europe: Asia. 



525. L. austromontana (Wieg.) Small [Saxifraga bronchio- 

 les Torr. ; not L. ; S. austromontana Wieg.]. Western 



MOUNTAIN SAXIFRAGE. 



On rocky ledges, Boulder Canon above the Falls ; at Sun- 

 set ; and above timberline. Arapahoe Peak, 7000-13000 ft. 

 (Daniels, 542). Also at Caribou; South Boulder Peak; moun- 

 tains between Sunshine and Ward (Rydberg). 



Alberta to British Columbia ; New Mexico to Washing- 

 ton. 



526. L. fiagellaris (Willd.) Small [Saxifraga fiagellaris 

 Willd.]. Flagellate saxifrage. 



Massif de 1' Arapahoe, 10000-13500 ft. (Rydberg). 

 Greenland to Alaska ; Colorado to Arizona. 



