Ratians - Stem Anatomy and Taxonomic Implications

Abstract
The stem anatomy of 114 species of the 13 rattan genera of the subfamily Calamoideae has been examined and described. Characters of taxonomic and diagnostic significance are the number of metaxylem vessels and phloem fields in the vascular bundles, the type of ground parenchyma, and the tissue arrangement in the cortex. The 13 rattan genera can be distinguished on the basis of these features. The stem anatomy of 114 species of the 13 rattan genera of the subfamily Calamoideae has been examined and described. Characters of taxonomic and diagnostic significance are the number of metaxylem vessels and phloem fields in the vascular bundles, the type of ground parenchyma, and the tissue arrangement in the cortex. The 13 rattan genera can be distinguished on the basis of these features.

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