needles (leaves or pine) are gathered in groups 2, 3 or 5 (rarely 1, 4 or more needles, depending on the species) than in adult plants are not included directly in the field (as opposed to trees), but on short branches called brachyblasts. They are evergreen species. During the development of a plant of pine can be observed three types of leaves: - Youth: first year appear to have flattened and placed individually coiled on the branch and have a life of 2-3 years-Eufille: squamiform leaves are taken to way along the spiral-macroblasti MICROFILL: are the needle-like leaves carried in bundles on brachiblastiLe final species of the genus Pinus are monoecious: the microsporofilli gathered in male cones that lead from 2 to 20 pollen sacs, the female lead macrosporofilli cones with scales and scales ovulifere coverts sterile (fertile) each with 2 eggs . After fertilization the female cones becoming lignified pine cones, pine trees are bearing the semi.I heliophilous plants, only a few (eg, Pinus cembra, Pinus strobus) can withstand a minimum of ombreggiamento.In Italy are the pine, the pine and the pine in the Alps, the stone pine, Aleppo pine, maritime pine in the Mediterranean area. Rare, but present, even the pine tree on the outskirts of Lammari lucchese.Assieme to characterize fir forests of mountain pines italiani.Si can identify the different characteristics based on some easily identifiable: 2 needles in bundles roundish cones, 10-15cm, with non-winged seeds (pine nuts), needles of 10-15 cm: Pine home (in Italy spontaneous species in marine areas) cones or conical, 5-10 cm, 6-10 cm needles: Aleppo pine needles and 10-20 cm: Calabrian pine (in Italy are both native species in marine areas and low altitude) or cones oblong, 12-20 cm, with winged seeds, needles 14-18 cm: Maritime pine (in Italy spontaneous species in marine areas) or 4-6 cm oval cones, needles 3-7 cm: Scots pine (in Italy spontaneous species in alpine areas) or 5-8 cm conical cones, needles 12-15 cm: black pine and black pine cones calabroo 5 cm with winged seeds, 4-6 cm needles: Pine Pine uncinatoo the size of a shrub that grows in high altitudes: Mountain pine needles • 3 needle bundles of 10-14 cm long: Monterey pine needles 20-30 cm long: Canary Island pine cone • bundles of 5 needles ca. 5-7 cm, with hard pine nuts and edible Swiss pine, present as a wild plant in the Alps, high montagnao pile of ca. 10-15 cm, 8-10 cm long needles up: white pine, in Italy as this plant ornamentaleo pile of ca. 20-30 cm, 12-20 cm long needles up: Pino Himalayas, this in Italy as an ornamental plant.
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