206 THE CULTIVATED EVERGREENS 



Closely allied to the preceding; chiefly distinguished by the somewhat larger 

 fruit, ripening not until the second year; by its habit, forming a broad head 

 with stout spreading branches and often dividing into several stems near the 

 base; and by its slu-edding bark. The branchlets are somewhat shorter and 

 stouter, and the foliage usually glaucous or yellowish-green. British Columbia 

 to California in the Rocky Mountains. — Introduced to England probably 

 first in 1836. 



Var. argentea, D. Hill. A narrow-pyramidal form with silvery-white 

 foliage. 



Var. viridifolia, D. Hill. A pyramidal form with striking bright green 

 foliage. 



Var. horizontalis, D. HUl. Upright form with horizontally spreading 

 branches and bluish-white foliage. 



20. J. horizontalis, Moench (J. prostrata, Pers. J. Sabina var. procumbens, 

 Pursh. J. repens, Nutt.). Creeping J. Plate XVI. Procumbent, usually 

 with long trailing branches furnished with numerous short branchlets, some- 

 times to 4 feet high and with spreading branches : leaves of young plants 

 subulate, mature foliage imbricate, scale-like, acute or acutely cuspidate, 

 bluish-green or steel-blue: fruit about H inch across, blue, slightly glaucous, 

 on a pedicel shorter than its length. Nova Scotia to British Columbia, 

 south to Massachusetts, New York, Minnesota, and Montana. — Introduced 

 to Europe before 1800. Hardy to northwestern Canada and valued as a 

 groimd-cover for sandy and rocky soQ in exposed situations. 



Var. Douglasii, Rehd., is a distinctly trailing form with steel-blue foliage, 

 turning purple in autumn with glaucous bloom; also called Waukegan juniper. 



21. J. Sabina, L. Savin. Spreading or procumbent shrub, rarely with 

 erect stem, to 10 feet, branchlets rather slender, of a very strong disagreeable 

 odor when bruised: leaves needle-shaped, acute, and slightly spreading or 

 imbricate, oblong-rhombic, obtuse or subacute, usually dark green: fruit 

 -l-}4: inch thick, globular, 1-3-seeded. Mountains of central and southern 

 Europe, western Asia, and Caucasus. — Introduced to England before 1584; 

 hardy as far north as Canada. 



Var. variegata, Beiss. Hoarfrost Savin. Branchlets variegated with 

 creamy- white : leaves mostly imbricate. 



Var. fastigiata, Beiss. Column Savin. Erect shrub of columnar habit, 

 with dark green mostly scale-like leaves. 



Var. cupressifolia, Ait. (var. humilis, Endl.). Procumbent, with ascending 

 thickish branchlets: leaves usually imbricate, scale-like, often bluish-green. 



Var. tamariscifolia, Ait. Tamarix Savin. Procumbent or ascending, 

 rarely erect: leaves usually all needle-shaped and often in 3's, slightly in- 

 curved, free at the tip and sharply pointed, dark green, with a white band 

 above, often bluish-green. 



