SAXIFRAGACEAE. 173 



tooth Gulch ; Mancos ; Ute Pass ; Golden ; Sangre de Cristo ; Hahn's Peak ; 

 Fish Creek Falls, Routt Co. 



6. SULLIVANTIA T. & G. 



i. Sullivantia Hapemanii (Coult. & Fish.) Coulter. (Boykinia Purpusi 



Brandegee.) In rocky places from Wis. and Wyo. to Colo. Black Canon 

 of the Gunnison. 



7. TELESONIX Raf. 



i. Telesonix Jamesii (Torr.) Raf. (Saxifraga Jamesii Torr.) On exposed 

 mountain-tops in Colo. Alt. 8000-13,000 ft. Mt. Garfield; Pike's Peak; Min- 

 nehaha. 



8. SAXIFRAGA L. SAXIFRAGE. 



Flowers normal, none of them represented by clusters of bulblets. i. S. debilis. 

 Flowers below the terminal one replaced by clusters of bulblets. 



Lobes of the stem-leaves linear to triangular lanceolate ; petals cuneate. 



2. S. cernua. 



Lobes of the stem-leaves broad and rounded, as broad as long or broader ; petals 

 fiddle-shaped. 3. 5. simulata. 



1. Saxifraga debilis Engelm. Among wet rocks, on alpine peaks, from Mont, 

 to Colo, and Utah. Alt. 9000-13,000 ft. Mt. Hesperus; Sierra Blanca; Mt. 

 Abram, Ouray; Front Range, Larimer Co.; Redcliffe, Eagle Co.; West 

 Spanish Peak; Gray's Peak; Cameron Pass; Bottomless Pit, near Pike's 

 Peak; Ruby; Massif de 1'Arapahoe; mountains above Beaver Creek. 



2. Saxifraga cernua L. Among wet rocks, on alpine peaks, from Greenl. 

 and Alaska to Lab. and Colo ; also in Europe. Alt. about 13,000 ft. Mt. 

 Abram, Ouray. 



3. Saxifraga simulata Small. Among rocks, on the higher peaks, in 

 the Black Hills of S. D. and Colo. Alt. 10,000-13,000 ft. West Spanish 

 Peak. 



9. MUSCARIA Haw. 



Leaves of the caudex with entire or slightly 3" -toothed blades. i. M. adscendens. 

 Leaves of the caudex with 3-cleft or prominently 3-lobed blades. 



2. M. delicatula. 



1. Muscaria adscendens (L.) Small. (Saxifraga adscendens L.) Among 

 rocks, on alpine peaks, from Alb. and B. C. to Colo, and Utah. Alt. 10,000- 

 13,000 ft. Gray's Peak; Deep Creek Lake; West Spanish Peak; Pike's Peak. 



2. Muscaria delicatula Small. On alpine peaks from Alb. to Colo, and 

 Utah. Gray's Peak. 



10. MICRANTHES Haw. 



Filaments subulate or filiform-subulate, or rarely narrowly linear. 



Cymules wholly or mainly aggregated into a head, or one or two lower ones 

 remote or peduncled ; leaves petioled ; blades rhombic ovate. 



i. M. rhomboidea. 

 Cymules in narrow pyramidal or corymb-like panicles ; leaves subsessile, oblan- 



ceolate-oblong. 



Panicle wide, peduncles of the lower cymules elongated. 2. M. arnoglossa. 

 Panicle narrow ; peduncles permanently very short. 3. M. brachypus. 



Filaments clavate or spatulate ; petals spotted. 4. M. arguta. 



