PINACEAE. 9 



6. ABIES Miller. Balsams, Firs. 



Resin ducts of the leaves within the soft tissue, remote from the epidermis. 



I. A. lasiocarpa. 

 Resin ducts of the leaves close to the epidermis on the lower side. 



:£. A. concolor. 



1. Abies lasiocarpa (Hook.) Nutt. Balsam Fir. Subalpine mountains 

 from Alb. to Alaska, Ariz, and N. M. — Alt. 9500-12,500 ft. — West Spanish 

 Peak; Grand Lakes; Empire; Andrew's ranch; Mt. Richtofen; Cameron 

 Pass. 



2. Abies concoloi Lindl. White Fir. Along streams in the mountains 

 from Colo, to Ore., Calif, and N. M. — Alt. 8000-10,000 ft. — Wahatoya Canon; 

 Manitoii; Veta Mountain; Bob Creek, west of La Plata; Ouray. 



Family 9. JUNIPERACEAE Horan. Juniper Family. 



Leaves subulate on the mature branches ; aments axillary, the pistillate with 

 smaller scales at the top. i. Juniperus. 



Leaves scalelike and appressed on the mature branches ; aments terminal, the 

 pistillate with larger scales at the top. 2. Sabina. 



1. JUNIPERUS L. Junipers. 



Low shrub with depressed branches ; leaves abruptly bent at the base, deeply 

 channelled, abruptly acute. i. /. sibirica. 



Tree or erect shrub ; leaves straight or nearly so, shallowly channelled, gradually 

 acuminate. 2. /. communis. 



I. Juniperus sibirica Burgsd. Mountain or Low Juniper. Exposed rocky 

 mountains and hills from Labr. to Alaska, Utah and N. Y. — Alt. 6500-10,000 

 ft. — Pike's Peak; Colorado Springs; Empire; Marshall Pass; Golden; Little 

 Beaver; near Veta Pass; Bob Creek, west of La Plata Mountains; Ouray; 

 Grand Lake; between Sunshine and Ward; Ojo; Beaver Creek; Baxter's 

 ranch; Trapper's Lake; Rist Caiion. 



:4. Juniperus communis L. Juniper. Rocky hills and stony places from 

 Lab. to Mont., N. M. and Ga. — Alt. 5000-8500 ft. — Minnehaha; Colorado 

 Springs. 



•2. SABINA Haller. Red Cedars, Savins, Junipers. 



Fruit reddish-brown or bluish by a bloom, with dry-fibrous sweet flesh. 



I. 5". utahensis. 

 Fruit blue or blue-black, rarely copper-colored, with juicy resinous flesh. 

 Trees or erect shrubs ; fruit on straight peduncle. 



Leaves minutely denticulate at the apex ; fruit 5-7 ram. in diameter, usually 

 I -seeded. 2. 5. monosperma. 



Leaves entire ; fruit 4-5 mm. in diameter, usually several-seeded. 



3. i". scopulorum. 

 Prostrate shrub ; fruit on recurved peduncle. 4. S. prostrata. 



I. Sabina utahensis (Engelm.) Rydb. {luniperus californica 'utahensis 

 Engelm.) On dry mountain slopes and table-lands from western Colo, to 

 Nev., southeastern Calif, and Ariz. — Alt. 5000-10,000 ft. — State Bridge; Glen- 

 wood Springs; Grand River Valley. 



