Taxonomy and Geographical Distribution of CAM Plants
Crassulacean Acid Metabolism has been documented in at least 18 flowering plant families (Table 1.1). As of 1977, there were recorded in the literature 109 genera and over 300 species of flowering plants (cf. Black and Williams, 1976; Szarsk and Ting, 1977) with CAM. The largest and most important CAM families are the Cactaceae, the Crassulaceae, the Euphorbiaceae, the Aizoaceae, and perhaps the Liliaceae, especially if Agavaceae are included with the lilies. The epiphytic forms of the Bromeliaceae and the Orchidaceae make these families important.
KeywordsCrassulacean Acid Metabolism Crassulacean Acid Metabolism Plant Epiphytic Orchid Organic Acid Accumulation Flowering Plant Family
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