PRIMULACEAE. 263 



7. Androsace subulifera (A. Gray) Rydb. (A. septentrionalis subulifera A. 

 Gray) In the mountains from Mont, to Colo. Alt. 6000-10,000 ft. Cascade; 

 Minnehaha; Cameron Pass; Steamboat Springs; Cimarron; Beaver Creek; 

 Mancos; Durango; Pennock's; Dillon Canon, Trinidad. 



8. Androsace filiformis Retz. (A. capillaris Greene) Along mountain 

 streams from Wash, and Mont, to Colo. Alt. up to 10,000 ft. Gore Pass; 

 Middle Park; Grand River, 12 miles below the lake; Steamboat Springs. 



3. STEIRONEMA Raf. FRINGED LOOSESTRIFE. 



i. Steironema ciliatum (L.) Raf. In swamps and wet meadows from N. 

 S. and Wash, to Ga. and Ariz. Alt. 4000-8000 ft. New Windsor, Weld Co. ; 

 Alamosa; Wahatoya Creek; Ft. Collins; Mason's river-front farm; Rist 

 Canon; Horsetooth Gulch; La Porte; Boulder. 



4. NAUMBURGIA Moench. TUFTED LOOSESTRIFE. 



i. Naumburgia thyrsiflora (L.) Duby. In shallow water and swamps 

 from N. S. and Alaska to Pa., Colo, and Ore.; also in Europe. Alt. about 

 5000 ft. Ft. Collins. 



5. DODECATHEON L. AMERICAN COWSLIP, SHOOTING STAR. 



Anthers subsessile or nearly so ; tube of the filaments, if any, less than 0.5 mm. long. 



i. D. multiflorum. 



Anthers not subsessile ; filaments united into a distinct tube, 1-3 mm. long. 

 Anthers more than twice as long as the short filaments. 

 Leaves entire. 



Leaf -blades oval or oblong ; bracts oblong, mostly obtuse ; plant slender ; 



flowers 1-3 (rarely 4-5). 2. D. philoscia. 



Leaf-blades oblanceolate ; bracts lanceolate, acute ; plant usually stout 



and many-flowered. 3. D. radicatum. 



Leaves sinuately dentate. 4. D. sinuatum. 



Anthers less than twice as long as the filaments. 5. D. pauciflorum. 



1. Dodecatheon multiflorum Rydb. In wet meadows of Colo, and Wyo. 

 Alt. 8000-9000 ft. Sangre de Cristo Creek. 



2. Dodecatheon philoscia A. Nels. In wet meadows of Colo, and Wyo. 

 Alt. 8000-10,000 ft. William's Canon, near Pike's Peak; Walton Creek; 

 Sargent's; Pike's Peak; Ft. Collins. 



3. Dodecatheon radicatum Greene. In wet meadows from S. D. and Wyo. 

 to Kans. and N. Mex. Alt. 7000-11,000 ft. Eldora to Baltimore; Berthoud 

 Pass; Dark Canon; Bear Creek Canon; Grayback mining camps and Placer 

 Gulch; Walden; below Colorado Springs; Idaho Springs; West Indian 

 Creek; Veta Mountain; South Park; East Indian Creek; Lake City; Horse- 

 tooth Gulch ; forks of Poudre and Big South ; gulch west of Dixon Canon ; 

 Pennock's mountain ranch; Hematite; Pike's Peak. 



4. Dodecatheon sinuatum Rydb. (D. radicatum sinuatum Rydb.) Shady 

 wet banks and wet meadows in Colo. Alt 5000-8000 ft. Foot-hills, Larimer 

 Co. ; Buena Vista ; foothills west of Ft. Collins. 



5. Dodecatheon pauciflorum (Durand) Greene. In wet meadows and along 

 streams from Mackenzie and Sask. to Colo. Alt. about 8500 ft. Columbine. 



