Botanical Words Alphabetical List - AP

APATITE: 1. The main mineral found in phosphate rock. 2. An inorganic compound found in bones; a component of the fertilizer, bone meal.

APETALOUS: Without petals or corolla.

APEX: The end of a leaf or growing tip of a shoot.

APHELIOTROPIC: Turning away from the light; applied to shoots or other parts of plants, as in roots that turn away from the sun; opposite heliotropic.

APHYLLOUS: Without leaves; applied to flowering plants that are naturally leafless, such as many kinds of cactus.

APICULE: A short, sharp point.

APOCARPOUS: An ovary of a fruit composed of one or more simple and distinct pistils, as in Buttercups.

APOGAMOUS: The nature of or characterized by apogamy.

APOGAMY: Generally, the absence of sexual reproductive power, the plant perpetuating itself only by vegetative means, as buds, bulbs, etc.

APOMIXIS: Reproduction involving generative tissues but not dependent on fertilization.

APOPHYLLOUS: Having distinct leaves, applied to a whorled flower with distinct sepals and petals; opposed to gamophyllous.

APPENDAGE: That which is attached to something as a proper part of it; a subordinate, attached part of anything. Specifically, any subsidiary part added to another part, as hairs and glands to a stem or leaf.

APPLANATE: Flattened out or horizontally expanded.

APPRESSED: Pressed closely against; fitting closely to; lying flat against.

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