. The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada. Evergreens; Conifers. 230 THE CULTIVATED EVERGREENS scale-like bracts at the base of the cone: leaves ternate, scale-like, sometimes needle-shaped: cone ripening the first year, with 6 acute valvate scales surrounding a conical production of the central axis; each scale with 2 winged seeds. The only species is A. pyramidalis, Miq. (Callitris Adinostrohus, F. Muell.), a densely branched shrub with a cone about f inch across, from West Aus- tr
. The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada. Evergreens; Conifers. 230 THE CULTIVATED EVERGREENS scale-like bracts at the base of the cone: leaves ternate, scale-like, sometimes needle-shaped: cone ripening the first year, with 6 acute valvate scales surrounding a conical production of the central axis; each scale with 2 winged seeds. The only species is A. pyramidalis, Miq. (Callitris Adinostrohus, F. Muell.), a densely branched shrub with a cone about f inch across, from West Aus- tralia.—Cultivated in Europe about 1845. 9. TETRACLINIS, Mast. ARAR-TREE Evergreen tree; branchlets articulate, flattened: leaves scale-like, minute, in whorls of 4: cones tetragonal, consisting of 4 valvate scales of nearly equal size, the outer pair concave on back, the inner pair depressed on back and usually sterile, all with a small mucro below the apex; fertile scales with 2 or 3 broad-winged seeds. (Name derived from Greek, tetra, four, and klinis or Icline, bed; referring to the num- ber and shape of the cone-scales).—One species in northern Africa. T. articulata, Mast. {Thuya articulata, Valil. Callitris quadrivalvis. Vent.). Arar- Tree (Sandarach-gum-Tree). Fig. 51. Small tree to 20 feet tall, with slender spreading branches: the free apex of the leaves triangular, glandular: cones about 3^ inch across; scales oval. Mountains of northwestern Africa. —Introduced in 1815 to Great Britain and occasionally cultivated in Euro- pean gardens and in California. It is probably not hardy north of the Southern States and California. The arar-tree has some resemblance to Thuja orien- talis, but the habit is looser and the branchlets slenderer. It furnishes gum sandarach, a varnish resin. 10. WIDDRINGTONIA, Endl. Evergreen trees; branchlets terete: leaves opposite, scale-like or linear, on leading shoots alternate and linear: flowers dioecious; staminate flowers solitary and t
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectconifer, bookyear1923
