Manual of the Trees of North America (Exclusive of Mexico) 2nd ed.Sargent, Charles Sprague
Science
Manual of the Trees of North America (Exclusive of Mexico) 2nd ed.
Sargent, Charles Sprague
Trees -- North America
ridged; leaves acute or acuminate, usually glandular.
8. J. monosperma (F).
Seeds 1 or 2, dark chestnut-brown, acute, obscurely ridged;
leaves obtusely pointed, often eglandular.
9. J. mexicana (C).
Leaves naked on the margins, mostly opposite, glandular or
eglandular; fruit subglobose.
Fruit ripening at the end of the first season.
Fruit ¼′—⅓′ in diameter; seeds 1 or 2, rarely 3 or 4; leaves
acute or acuminate; branches spreading or erect.
10. J. virginiana (A, C).
Fruit 1/12′—⅙′ in diameter; seeds 1 or 2; leaves acute;
branches usually pendulous.
11. J. lucayana (C).
Fruit ripening at the end of the second season, ¼′—⅓′ in
diameter; seeds 1 or 2; leaves acute or acuminate.
12. J. scopulorum (B, F).
1. Juniperus communis L. Juniper.
[Illustration: Fig. 78]
Leaves spreading nearly at right angles to the branchlets, ⅓′—½′ long,
about 1/32′ wide, turning during winter a deep rich bronze color on the
lower surface, persistent for many years. Flowers: male composed of 5 or
6 whorls each of 3 stamens, with broadly ovate acute and short-pointed
connectives, bearing at the very base 3 or 4 globose anther-cells;
female surrounded by 5 or 6 whorls of ternate leaf-like scales, composed
of 3 slightly spreading ovules abruptly enlarged and open at the apex,
with 3 minute obtuse fleshy scales below and alternate with them. Fruit
maturing in the third season, subglobose or short-oblong, about ¼′ in
diameter, with soft mealy resinous sweet flesh and 1—3 seeds; often
persistent on the branches one or two years after ripening; seeds ovoid,
acute, irregularly angled or flattened, deeply penetrated by numerous
prominent thin-walled resin-glands, about ⅛′ long, the outer coat thick
and bony, the inner membranaceous.
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