126 PORTULACACEAE. 



Carson; Mt. Bartlett; Robinson; mountains near Empire; Massif de I'Arapa- 

 hoe; Lake City; headwaters of Clear Creek; mountains northwest of Como; 

 Boreas; Devil's Causeway; Berthoud Pass; Ethel Peak. 



3. LIMNIA L. Spanish Lettuce. 



I. Limnia depressa (A. Gray) Rydb. {Claytonia parvMora depressa A. 

 Gray) On river banks and near springs from S. D. to Wash., Colo., Ariz, 

 and Calif. — Reported from Colorado, but doubtful. 



4. CRUNOCALLIS Rydb. Water Spring Beauty. 



I. Crunocallis Chamissonis (Esch.) Rydb. (Claytonia Chamissonis Esch.) 

 In streams from Minn, to B. C, N. M. and Calif. — Alt. 5000-10,000 ft. — Rabbit- 

 Ear Pass; Beaver Creek; Long Gulch; Ward, Boulder Co.; Middle Park; 

 Green Mountain Falls; North Park; Empire; Moon's ranch, Larimer Co.; 

 Empire; Walton Creek, North Park; Baxter's ranch; Table Rock; Middle 

 Park; Arapahoe Pass; Beaver Creek; Long Gulch. 



S. OREOBROMA Howell. 



Sepals not erose-denticulate. 1. O. nevadensis. 



Sepals erose-denticulate. 2. O. Grayi. 



1. Oreobroma nevadensis (S. Wats.) Howell. (Calandrinia Nevadensis S. 

 Wats.) On dry mountains from Wash, to Colo, and Calif. — Steamboat 

 Springs. 



2. Oieobroma pygmaea (A. Gray) Howell. (Calandrinia pygmaea A. Gray) 

 Dry mountain sides from Mont, to Colo, and Calif. — Alt. up to 12,000 ft. — 

 Mountain northeast of Boreas ; Ragged Mountain, Gunnison Co. ; Leroux 

 Parks; Cameron Pass; Bob Creek; Boreas; Leadville; Grayback mining 

 camp; Arapahoe Peak. 



6. EROCALLIS Rydb: 



I. Erocallis triphylla (S. Wats.) Rydb. (Claytonia triphylla S. Wats.; 

 Oreobroma triphylla Howell) In the mountains from Wyo. and Wash, to 

 Colo, and Calif. — Cameron Pass. 



7. LEWISIA Pursh. Bitter Root. 



I. Lewisia redeviva Pursh. On stony ridges from Mont, to Colo., Ariz, 

 and Cauf. — Pinkham Creek, Larimer Co. 



8. PORTULACA L. Purslane, Pussley. 



Stem prostrate ; sepals pointed in the bud ; seeds obscurely granulate. 



X a", oleracea. 

 Stem ascending ; sepals obtuse in the bud ; seeds echinate-tuberculate. 



2. P. retusa. 



1. Portulaca oleracea L. In waste places and cultivated soil from Maine to 

 Mont., Fla. and Hex.— Alt. 4000-5000 ft.— Ft. Collins. 



2. Portulaca retusa Engelm. In sandy soil from Ark. to Nev., Tex. and 

 N. M.— Alt. up to 6000 ft.— Colorado Springs. 



