17(» CRASSULACEAE. 



2. CLEMENTSIA Rose. Red Orpine. 



I. Clementsia rhodantha (A. Gray) Rose. (Scdum rhodaiiUium A. Gray) 

 In meadows and along streams from Mont, to Colo, and Ariz. — Alt. 10,000- 

 13,000 ft. — Gray's Peak; headwaters of Clear Creek; Caribou; Pike's Peak; 

 Gore Pass; Cameron Pass; Pagosa Peak; Villa Grove; Dark Canon; Mar- 

 shall Pass ; near Georgetown ; Twin Lakes ; Chambers' Lake ; Berthoud Pass. 



3, RHODIOLA L. Rose-root, Rose-wort. 



Flowers dioecious ; carpels 3-5 mm. long, abruptly contracted into a short di- 

 vergent or rcflexed beak. i. R. integrifolia. 



Flowers polygamous ; carpels 6-8 mm. long, gradually tapering into a long 

 ascending beak. 2. R. polygama. 



1. Rhodiola integrifolia Raf. (Scdum rhodiola Coult., in part; not DC; 

 Scdiim frigid urn Rydb.) On high alpine peaks from Alb. and Alaska to 

 Colo, and Calif. — Alt. 9000-14,000 ft. — Pike's Peak; Mount Garfield; Gray- 

 back mining camps ; West Spanish Peak. 



2. Rhodiola polygama (Rydb.) Britt. & Rose. (Scdum polygamuni Rydb.) 

 On alpine peaks of Colo, and N. M. — Alt. 9000-13,000 ft. — Engineer Moun- 

 tain ; headwaters of Clear Creek ; Carson ; Basin Creek, La Plata Mountains ; 

 Mount Hesperus ; near Ironton ; Pike's Peak ; Chambers' Lake ; Mt. Lincoln ; 

 West Spanish Peak; South Park; Leroux Park; Estes Park; Bethoud Pass. 



4. SEDUM L. Stone-crop, Orpine. 



I. Sedum stenopetalum Pursh. On dry rocky or gravelly hills from Alb. 

 and B. C. to N. M. and Calif.— Alt. 4000-12,000 ft.— Gray's Peak; Pike's 

 Peak; Clear Creek Canon; Colorado Springs; headwaters of Clear Creek; 

 Cameron Pass ; Larimer Co. ; Hamor's Lake ; Bald Mountain ; Mt. Garfield ; 

 Grayback mining camp; Silver Plume; Morrison; Telluride; Minnehaha; 

 Cimarron; Denver; West Spanish Peak; Ft. Collins; Ironton; Green Moun- 

 tain Falls ; Howe's Gulch ; mountains southeast of Cameron Pass ; forks of 

 Poudre and Big South; gulch west of Pennock's; Horsetooth Gulch; near 

 Narrows; Dixon Caiion; Table Rock; mountains between Sunshine and 

 Ward. 



Family 62. SAXIFRAGACEAE Dumort. Saxifrage Family. 



Placentae parietal, sometimes nearly basal. 



Flowers solitary and axillary to leaf-like bracts, or 2-4 in small corymbs, each 

 subtended by a leaf-like bract. i- Chrysosplenium. 



Flowers in more or less elongated racemes or panicles. 



Flower-stalk axial from a slender bulbiferous rootstock ; gynoecium 3-car- 



pellary. 2. Lithophr.\gma. 



Flower stalks a lateral shoot from a stout scaly rootstock ; gynoecium 2-car- 

 pellary. 

 Inflorescence racemose. 



Petals pinnately cleft or pinnatifid. 3- Pectiantia. 



Petals entire, toothed or 3-cleft above. 4- Ozomelis. 



Inflorescence paniculate; petals broadened upward. 5. Heuchera. 

 Placentae axial. 



