10 JUNIPERACEAE. 



z. Sabina monosperma (Engelm.) Rydb. (funiperus occidentalis mono- 

 sperma Engelm.) Dry foot-hills and mesas from Colo, to Utah, Ariz., N. M. 

 and northern Mexico.— Alt. 5500-7500 ft.— McCoy; Cedar Creek; La Veta; 

 Mancos; Owl Canon; Rustic. 



3. Sabina scopulorum (Sarg.) Rydb. (funiperus scopulorum Sarg.) 

 Rocky Mountain Red Cedar. On foot-hills and river bluffs from Alb. to 

 B. C, Ore., Ariz, and Texas. — 'Alt. 4000-8500 ft. — Colorado Springs ; Golden ; 

 Garden of the Gods; Ouray; Durango; McCoy; State Bridge, Grand River; 

 Kremmling; Eagle River, Walcott; Boulder; Manitou; New Castle; Salida; 

 Andrew's ranch; Soldier Canon; Rist Canon; Trinidad; Owl Caiion. 



4. Sabina prostrata (Pers.) Antoine. Creeping Juniper, Trailing Savin. 

 Exposed hills and slopes from N. S. to B. C, Colo, and N. Y. — Alt. 4000- 

 8500 ft. — North Cheyenne Canon; Parlin; Owl Cafion. 



Orders. GNETALES. 



Family 10. EPHEDRACEAE Dumort. Joint-fir Family. 

 I. EPHEDRA Toum. Joint-firs. 



Scales and branches opposite ; bracts opposite and connate, scarious only on the 

 margins. i. E. antisyphylitica. 



Scales, branches and bracts in threes ; the latter scarcely connate ; those of the 

 pistillate cones mostly scarious and more or less clawed. 

 Scales 2-3 mm. long, not becoming shreddy ; fruit scabrous. 



2. E. Torreyana. 

 Scales 6-12 ram. long, becoming shreddy; fruit smooth. 3. E. trifurca. 



1. Ephedra antisyphylitica E. A. Mey. On desert land from Colo, to 

 Texas and Mex. — Mancos. 



2. Ephedra Torreyana S. Wats. On desert lands to an altitude of 5500 ft. 

 from Colo, and Utah to N. M. and Calif. — Deer Run. 



3. Ephedra trifurca Torr. On desert lands from southwestern Colo, and 

 Utah to Texas and Ariz. — Mesa Verde; Las Animas Valley (Brandegee). 



