The Casuarinaceae
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Description: Botanical characteristics of this family with photographs and a brief description of a number of individual species.
Flowering Plant Families, UH Botany The Casuarinaceae are monoecious or dioecious trees and shrubs comprising one genus and about 50 species with green, jointed, whorled photosynthetic branchlets. The leaves are minute and whorled. The male flowers are minute and are clustered at the tips of branchlets in catkin-like strobili. Each flower consists of a single stamen, a subtending bract and 2 pairs of bracteoles. The female flowers are in ovoid clusters, each flower consists of a pistil, a subtending bract and two bracteoles. The bicarpellate pistil has two long, filiform stigmas from a short style. The ovary initially has two locules with two ovules in each but one locule is generally completely aborted at anthesis. The bracts and bractlets enclosing the ovaries persist and become woody, closely resembling a cone. Eventually, the bracts of individual flowers separate, releasing the 1-seeded samaroid fruits.
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| Date | activated: 27-Oct-1986 last updated: 24-May-2011 expires: 31-Jul-2014 |