Pinaceae


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Related to Pinaceae: Taxodiaceae, pine cones

Pinaceae

 

(pine), a family of coniferous gymnospermous plants, including evergreen or, less commonly, deciduous (Larix) trees and some shrubs. The leaves are linear-lanceolate, linear, needle-shaped, or scale-like; they are borne singly on the principal shoots or are in groups of two to five (Pinus) or more (Cedrus and Larix) at the ends of short lateral shoots. The microstrobiles, which are for the most part red or yellow, are arranged in groups or are solitary. The pollen has two or, less commonly, no air sacs (Larix, Tsuga). The woody cones, which range in length from 1.5 to 50 cm, mature in the first year (Larix) or, more commonly, in the second or third year. The cones decompose on the tree (Abies) or fall to the ground; the seed scales are thick, free, and spirally arranged in the axil of the bract, which may be unnoticeable (Pinus) or may be longer than the seed scale (Abies). The seeds often have a membranous wing.

The Pinaceae are wind-pollinated monoecious plants with unisexual cones. The roots have mycorrhizae. There are ten or 11 genera, with about 250 species, distributed mainly in the temperate zone of the northern hemisphere. Taiga forests have a predominance of Pinaceae species. Valuable timber is furnished by the trees, especially by fir, spruce, pine, and larch species. The needles serve as raw material for the commercial production of vitamin C.

REFERENCE

Takhtadzhian, A. L. Vysshie rasteniia, vol. 1. Moscow-Leningrad, 1956.

T. G. LEONOVA

References in periodicals archive ?
(2016) also observed non significant differences in ECM community of four different tree species of family Pinaceae, indicating that at family level ECM hostfungus interaction is well conserved.
Danos qualitativos e quantitativos de Cinara atlantica (Wilson) (Hemiptera:Aphididae) em mudas de Pinus taeda Linnaeus (Pinaceae).
The predominant plant families were Pinaceae and Moraceae, with five species each, followed by Fagaceae and Salicaceae, represented by four species each.
Gerianaceae 0.01 [+ or -] 0.01 Geranium sylvaticum Graminaceae, 78.11 [+ or -] 2.35 Graminaceae, Juncaceae, Juncaceae, Cyperaceae Cyperaceae Lamiaceae 0.20 [+ or -] 0.11 Thymus serpyllum Pinaceae 0.64 [+ or -] 0.21 Larix decidua Picea abies Plantaginaceae 0.08 [+ or -] 0.07 Plantago media Polygonaceae 0.02 [+ or -] 0.01 Rumex sp.
Rushforth, "A classification of Abies Miller (Pinaceae)," Notes from the Royal Botanic Garden Edinburgh, vol.
It belongs to family Pinaceae. Technically it is called Pinus gerardiana and is indigenous to the northwest of Himalaya; found in northern Pakistan, eastern Afghanistan, and northwest India, growing at elevations between 1800-3350 meters.
Eastern white pine (Pinus strobus of the Family Pinaceae) also has more to offer than a pleasing fragrance, said Smith.