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|Cactus Information||Cactus Classification||Cactus Glossary|
areoles - circular clusters of spines on a cactus. Flowers bud at an areole and new stems branch from an areole.
cladode - a flattened stem that looks like a leaf.
cuticle - the outer layer of the epidermis, which is often waxy
floccose - covered with short hairs, like the areole of some cacti.
glochids - tufts of short, barbed spines that are found at the areoles of opuntia cacti.
glabrous - lacking hairs, usually applied to an old areole or a flower scale.
glaucous - covered with a wax-like layer, liek the cuticle of many cactus species.
globose - shaped like a globe (or sphere).
parastichy - the spiral line (invisible) of the pattern of the areoles on a cactus.
pericarpel - the tissue of the upper part of the flower stem, the receptable, and the lower part of the pistil.
spine - a sharp, pointed, modified leaf found in areoles of cacti.
stamen - the male reproductive parts of a flower. It consists of the filament and the anther.
stigma - part of the pistil, the female reproductive tissue of a flower.
succulent - a plant that has fleshy and juicy tissues, like cacti, sedums, aloes, and yuccas.
sulcus - a groove.
xeric - xeric environmental conditions are ones that are very dry.
xerophyte - a plant that is adapted to very dry conditions (like deserts and the emergent level of the rainforest). Succulents, bromeliads and cacti are xerophytes.
Botany and Paleobotany Dictionary
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