Buds scaly; leaves evergreen and persistent for several years (except in _Larix_), scattered along the twigs, spirally arranged or tufted, linear, needle-shaped, or scale-like; sterile and fertile flowers separate upon the same plant; stamens (subtended by scales) spirally arranged upon a central axis, each bearing two pollen-sacs surmounted by a broad-toothed connective; fertile flowers composed of spirally arranged bracts or cover-scales, each bract subtending an ovuliferous scale; cover-scale and ovuliferous scale attached at their bases; cover-scale usually remaining small, ovuliferous scale enlarging, especially after fertilization, gradually becoming woody or leathery and bearing two ovules at its base; cones maturing (except in _Pinus_) the first year; ovuliferous scales in fruit usually known as cone-scales; seeds winged; roots mostly spreading horizontally at a short distance below the surface. CUPRESSACEAE. THUJA. CUPRESSUS. JUNIPERUS. Leaf-buds not scaly; leaves evergreen and persistent for several years, opposite, verticillate, or sometimes scattered, scale-like, often needle-shaped in seedlings and sometimes upon the branches of older plants; flowers minute; stamens and pistils in separate blossoms upon the same plant or upon different plants; stamens usually bearing 3-5 pollen-sacs on the underside; scales of fertile aments few, opposite or ternate; fruit small cones, or berries formed by coalescence of the fleshy cone-scales; otherwise as in _Abietaceae_. Larix Americana, Michx. _Larix laricina, Koch._ TAMARACK. HACMATACK. LARCH. JUNIPER. =Habitat and Range.=--Low lands, shaded hillsides, borders of ponds; in New England preferring cold swamps; sometimes far up mountain slopes. Labrador, Newfoundland, and Nova Scotia, west to the Rocky mountains; from the Rockies through British Columbia, northward along the Yukon and Mackenzie systems, to the limit of tree growth beyond the Arctic circle. Maine, New Hampshire, and Vermont,--abundant, filling swamps acres in extent, alone or associated with other trees, mostly black spruce; growing depressed and scattered on Katahdin at an altitude of 4000 feet; Massachusetts,--rather common, at least northward; Rhode Island,--not reported; Connecticut,--occasional in the northern half of the state; reported as far south as Danbury (Fairfield county). South along the mountains to New Jersey and Pennsylvania; west to Minnesota.