Glossary. Awn - a bristlelike appendage. Bisexual - having both sexes present and functional in the one flower. Bract - a much reduced leaf, particularly the small or scalelike leaves in a flower cluster. Calyx - the outer whorl of the perianth composed of the sepals. Compound - two or more similar parts in one organ, i.e., a leaf composed of several leaflets. Corolla - inner whorl of the perianth composed of the petals. Deciduous - falling at the end of one season of growth or life, as the leaves of nonevergreen trees. Some trees and shrubs are deciduous throughout the year. Dioecious - with storninate and pistellate flowers on different plants. Entire - leaf with a continuous margin; not in any way indented; whole. Estipulate - without stipules. Evergreen - plants which are green throughout the year. Filament - the stalk of the stamen which is terminated by the anther. Floret - individual and very small flowers of the Compositae and Gramineae. Frond - leaves of ferns (or palms). Glume - one of two sterile bracts at the base of most grass spiketels. Inflorescence - a flower cluster or flowering branch. Lenima - the lower of the two bracts immediately enclosing the flower. Lobed - an organ part, i.e., petal, sepal or leaf parts that represent a division of the organ. Locule - a compartment. Mealy - Monoecious - with storninate and pistellate flowers on the same plant.