10 JUNIPERACEAE. 



2. Sabina monosperma (Engelm.) Rydb. (Juniperus 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. (Juniperus 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 Canon. 



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 Canon. 



OrderS. GNETALES. 



Family 10. EPHEDRACEAE Dumort. JOINT-FIR FAMILY. 

 i. EPHEDRA Tourn. 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 mm. 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). 



