Page 18 - Forest Trees of Maine

Obovate Egg-shaped in outline; broadest above the middle.

Opposite [arrangement of leaves or buds]
Directly across from one another on a
common axis, or twig. Opposite
Oval Somewhat elliptical; less than twice as long as broad.

Ovate Egg-shaped in outline; broadest below the middle.
Ovoid An egg-shaped solid.
Palmate [leaf or veins] Compound, with leaflets originating
at the same point on a common stalk. Veins originating at a
common point at base of leaf blade.

Panicle A loosely branched, pyramidal cluster of flowers.
Palmately
Compound Pendulous Drooping or hanging downward.
Petiole [leaf] The stalk that supports the leaf blade.

Pinnate [leaf or vein] Compound, with leaflets along a common
rachis or stalk. Veins originating along a common mid-vein.

Pistillate Containing female portions of flowers, or the pistils. Pinnate
Veins
Pith The central, soft part of the stem.
Prickle A small spine-like growth.
Pseudo-terminal [bud] When the bud on the end of a twig has a leaf scar
located directly below.
Pubescent Covered with hairs.
Raceme Numerous stalked flowers or fruit along a common axis.

Rachis The common stalk in a compound leaf to which the leaflets are attached.
Ranked [leaves] Arranged in rows or files.

Samara A winged fruit, e.g. ash, maple.
Scales [bud] Small, modified leaves on the outer surface of
buds.

Scales [cone] The basic structures that enclose the seeds.
Scale-like [leaf] Small, generally overlapping, triangular-
shaped leaves of some conifers. Scale-like
Seed That part of the fruit capable of germinating and producing a new plant.
Serrate [leaf] Margins with a saw-tooth outline. Doubly serrate: with small
teeth on the larger teeth.

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