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_p.u.b.erulent._ Minutely p.u.b.escent.
_p.u.b.erulous._ Minutely p.u.b.escent.
_p.u.b.escence._ A covering of short, soft hairs.
_p.u.b.escent._ Covered with short, soft hairs.
_Punctate._ Dotted with translucent or colored dots or pits.
_Raceme._ A simple inflorescence of flowers on pedicels of equal length arranged on a common, elongated axis (rachis). Page XIV.
_Racemose._ Resembling a raceme.
_Rachis._ The central axis of a spike or raceme of flowers or of a compound leaf.
_Recurved._ Curved downward or backward.
_Reticulate._ Netted.
_Rough._ Harsh to the touch; p.u.b.escent.
_Rugose._ Wrinkled.
_Samara._ An indehiscent winged fruit.
_Sapwood._ The living outer portion of a trunk or large branch of a tree between the heartwood and the bark.
_Scales._ Small modified leaves, usually thin and scarious, seen in buds and cones; the flakes into which the outer bark often divides.
_Scaly._ Provided with scales.
_Scarious._ Thin, dry, membranaceous; not green.
_Scurfy._ Covered with small bran-like scales.
_Seed._ The ripened ovule.
_Sepal._ One of the divisions of a calyx. Page XIII.
_Serrate._ Toothed, the teeth sharp and pointing forward. Page XIII.
_Sessile._ Without a stalk.
_Shrub._ A bushy, woody growth, usually branched at or near the base, less than 15 feet in height.
_Simple._ Of one piece; not compound.
_Sinuate._ Strongly wavy. Page XIII.
_Sinuous._ In form like the path of a snake.
_Sinus._ The cleft or s.p.a.ce between two lobes.
_Smooth._ Smooth to the touch; not p.u.b.escent.
_Spatulate._ Wide and rounded at the apex, but gradually narrowed downward. Page XII.
_Spike._ A simple inflorescence of sessile flowers arranged on a common, elongated axis (rachis). Page XIV.
_Spine._ A sharp woody outgrowth from a stem.
_Spray._ The aggregate of smaller branches and branchlets.
_Stamen._ The pollen-bearing organ of a flower, normally consisting of filament and anther. Page XIII.
_Staminate._ Provided with stamens, but usually without pistils.
_Staminodium_. A sterile stamen.
_Sterile_. Unproductive, as a flower without pistil, or a stamen without anther.
_Stigma_. The part of a pistil which receives the pollen. Page XIII.
_Stipules_. Leaf-like appendages on either side of a leaf at the base of the petiole.
_Stipule-scar_. The scar left by the fall of a stipule. Page XV.
_Striate_. Marked with fine longitudinal stripes or ridges.
_Strobile_. A cone.
_Style_. The part of a pistil connecting ovary with stigma. Page XIII.
_Sub_-. A prefix applied to many botanical terms, indicating somewhat or slightly.
_Subtend_. To lie under or opposite to.
_Sucker_. A shoot arising from a subterranean part of a plant.
_Superposed_. Placed above, as one bud above another at a node.
_Suture_. A junction or line of dehiscence.
_Terete_. Circular in cross-section.
