Contemporary Circumscription Compared with A Utah Flora 4th ed.

Bio430

Pinaceae

No differences at the family level; some differences at the species level.

Key Features

Mostly trees (some shrubs) with resin canals, needle-like leaves, and female cones with two ovules per scale.  Ovuliferous scales are attached to the cone axis in the axil of a bract which may be apparent (as in douglas fir) or obscure and partially fused to the cone scale (as in pines).  Within the family, genera are distinguished by needle shape, details of needle attachment, and cone characteristics.

Abies concolor
Abies concolor
Abies concolor
Abies concolor
Abies koreana - ummature female cones
Abies koreana - ummature female cones
Abies koreana - maturing female cones; the tips of bracts are visible below each cone scale
Abies koreana - maturing female cones; the tips of bracts are visible below each cone scale
Abies koreana - mature female cone disarticulating with persistent, upright axis.
Abies koreana - mature female cone disarticulating with persistent, upright axis.
Abies - abaxial (bottom) side of a fir cone scale with bract at its base
Abies - abaxial (bottom) side of a fir cone scale with bract at its base
Cedrus deodar - Cedar needles are attached singley to short shoots. Larix is similar
Cedrus deodar - Cedar needles are attached singley to short shoots. Larix is similar
Cedrus atlantica - branch with needle bearing short shoots. I don't have a picture of cones (find some via google) --they behave similar to Abies
Cedrus atlantica - branch with needle bearing short shoots. I don't have a picture of cones (find some via google) --they behave similar to Abies
Larix - cones of various ages and individual needles in spring time growing from short shoots. bracts below cone scales are apparent.
Larix - cones of various ages and individual needles in spring time growing from short shoots. bracts below cone scales are apparent.
Picea - needles are (more or less) square and sharp at the apex
Picea - needles are (more or less) square and sharp at the apex
Picea glauca - stem with needles attached to pegs.
Picea glauca - stem with needles attached to pegs.
Picea glauca - female cones
Picea glauca - female cones
Picea glauca - female cones
Picea glauca - female cones
Picea glauca - male cones
Picea glauca - male cones
Picea glauca - young female cones
Picea glauca - young female cones
Picea - males cones shedding pollen in the wind
Picea - males cones shedding pollen in the wind
Pseudotsuga - branch and needles
Pseudotsuga - branch and needles
Pseudotsuga - needles are much like fir needles, are attached a little differently.
Pseudotsuga - needles are much like fir needles, are attached a little differently.
Pseudotsuga - female cone with obvious bracts below each cone scale (below meaning more proximal, toward the base of the plant)
Pseudotsuga - female cone with obvious bracts below each cone scale (below meaning more proximal, toward the base of the plant)
Pinus parviflora - japanese white pine branch grazed by deer, with hardened resin at the tip
Pinus parviflora - japanese white pine branch grazed by deer, with hardened resin at the tip
Pinus parviflora - Japanese white pine. Two cones with some resin at base of some cone scales. Pine cones take two years from pollination to mature their seeds
Pinus parviflora - Japanese white pine. Two cones with some resin at base of some cone scales. Pine cones take two years from pollination to mature their seeds
Pinus - a 2-needle pine with fasciles, and scale leaves apparent where fascicles have fallen off.
Pinus - a 2-needle pine with fasciles, and scale leaves apparent where fascicles have fallen off.
Pinus - a 2-needle pine (two needles per fascile) with male pine cones
Pinus - a 2-needle pine (two needles per fascile) with male pine cones
Pinus edulus - one of the pines that produces pine 'nuts'. each fascicle bundle arises from the axil of a scale like woody leaf, is surrounded by papery leaves, and the needles form a circle in cross section
Pinus edulus - one of the pines that produces pine 'nuts'. each fascicle bundle arises from the axil of a scale like woody leaf, is surrounded by papery leaves, and the needles form a circle in cross section
Pinus ponderosa - two older female cones with cluster of new year's male cones still maturing
Pinus ponderosa - two older female cones with cluster of new year's male cones still maturing
Tsuga canadensis
Tsuga canadensis
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