WOOTON AND STANDLEY FLORA OF NEW MEXICO. 293 



2. RHODIOLA L. 



Perennials with woody, somewhat branching, thickened rootstocks; leaves flat and 

 comparatively thin; flowers dioecious or polygamous, 4 or 5-parted, in compact terminal 

 cymes; carpels erect; styles very short or none. 



KEY TO THE SPECIES. 



Petals yellowish, obtuse 1 . 7?. neomexiama. 



Petals purplish, acuminate 2. R. polygama . 



1. Rhodiola neomexicana Britton, Bull. N. Y. Bot. Gard. 3: 38. 1903. 



Type locality: White Mountain Peak, New Mexico. Type collected by Wooton. 

 Range: White Mountains of New Mexico, in the Hudsohian Zone. 



2. Rhodiola polygama (Rydb.) Britt. & Rose, Bull. N. Y. Bot. tiard. 3: 39. 1903. 

 Sedum polygamum Rydb. Bull. Torrey Club 28: 283. 1901. 



Type locality: West Spanish Peak, Colorado. . fjxi/^4 c ^ xf "' y ^ 



Range: Mountains of Colorado and New Mexico. ^ ^ t * 

 New Mexico: Pecos Baldy; Baldy; Jemez Mountains. Transitioii and Antic- 

 Alpine zones. 



3. SEDUM L. Stoneceop. 



Fleshy, mostly glabrous herbs, erect or decumbent, with alternate entire leaves 

 and perfect flowers in terminal cymes; calyx 5-parted; petals 5, yellow, white, or 

 pinkish ; stamens 10; carpels 5, distinct; fruit consisting of 5 follicle- . 



key to the species. 



Petals yellow 6. 8. stenopetalum 



Petals white or pink. 



Leaves terete or nearly so I . S. stelliforme. 



Leaves oblong, lanceolate, or spatulate, flattened. 



Leaves lanceolate to ovate or oblong, broadest at or near 



the base 2. S. cockerellii. 



Leaves-epatulate to obovate, narrowed at the base. 



Plants glabrous 3. S. ivrightii. 



Plants pubescent or puberulent-granular, at leaal 

 above. 



Leaves turgid, the basal ones smooth 4. S. wootoni. 



Leaves flattaah, at least the basal ones papillose.. 5. S griffithsii. 



1. Sedum stelliforme S. Wats. Proc. Amer. Acad. 20: 36 i I— • 

 Type locality: Huachuca Mountains, southern Arizona. 

 Range: New MexL " and Arizona to Chihuahua. 



New Mexico: Hillsboro Peak; San Francisco Mountains; Mogollon Mountains 



2. Sedum cockerellii Britt. ,n, Bull. N. Y Bot. Gard. 8:41. L903 



Type locality: Tuerto Mountain, east <<i > Ww Mt-xio. Type collei ted 



by Cockerell. 



Range: Known only from type locality. 



3. Sedum wrightii \ Gray, PI Wrighl 1:76 i- 



Type locality : "Hills near the San Pedro River, In crevices ol rocks, and aummil 

 of mountains near Id Paso," Texas. 



Rangi : We tern Texas and southern New Mexico to northern Mexico. 

 \ i w Mexico: Black Range; Eagle Creek Whit Mount 



