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Wood And Stem Anatomy Of Convolvulaceae, Sherwin Carlquist, Michael A. Hanson
Wood And Stem Anatomy Of Convolvulaceae, Sherwin Carlquist, Michael A. Hanson
Aliso: A Journal of Systematic and Floristic Botany
Quantitative and qualitative features of wood and stem anatomy are presented for 44 collections of 16 genera and 35 species ofConvolvulaceae. Markedly furrowed xylem characterizes the genera of tribe Cresseae. Successive cambia occur in 11 of the genera studied. Large patches of axial parenchyma occur in many of these; only in one species was interxylary phloem (formed internally by the cambium) observed in the parenchyma patches. Intraxylary phloem at the periphery of the pith is universal in Convolvulaceae, but newly reported is the fact that in many species, cambial activity adds secondary phloem to the intraxylary phloem strands. These cambia …