Part 74

Sinuous. In form like the path of a snake.

Sinus. The cleft or space between two lobes.

Smooth. Smooth to the touch; not pubescent.

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.

Terminal. Situated at the end of a branch.

Ternate. In threes.

Tetrahedral. Having, or made up of, four faces (triangles).

Thorn. A stiff, woody, sharp-pointed projection.

Tolerant. Capable of enduring more or less heavy shade.