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Trees of Yosemite (1932, 1948) by Mary Curry Tresidder

GLOSSARY

Angiosperm. A plant whose seeds have a covering of some sort, such as a pod.

Cambium. The layer just beneath the bark in a tree, through which the moisture flows upward and the sap flows downward.

Catkin. A scaly spike of flowers, such as that of the willow or birch.

Dicotyledon. A plant having two seed-leaves only.

Dimorphic. Having two types of foliage.

Gymnosperm. A plant with its seeds naked, as with the pines, where the seeds are attached at the base of the scales in the cone.

Lanceolate. Broadest at base, narrowing down to a point, like a lance.

Monocotyledon. A plant having only one seed-leaf.

Obovate. Shaped like an inverted egg.

Ovate. Egg-like in shape.

Ovule. The body in the ovary which at length becomes the seed.

Ovulate. Seed-bearing.

Petiole. Leaf-stem.

Pistil. The seed-bearing organ of a plant.

Pistillate. Bearing pistils only.

Polycotyledon. A plant having two or more seed-leaves.

Sessile. Without a stalk or leaf-stem.

Stipule. An appendage at the base of a leaf-stem; in many instances it falls before the leaf.

Stamen. The pollen-bearing organ of a plant.

Staminate. Bearing stamens only.

Umbo. A knob or spike at the outer tip of a scale, as in the cone of the White-Bark Pine.

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