Abstract
Nodal anatomy of 14 species belonging to 10 genera of Bignoniaceae is described. Unilacunar is the basic nodal pattern for the family with triple and multi-traced condition. The former type is observed inCampsis grandiflora, Pyrostegia venusta, Doxyantha unguis-cati, Stenolobium stans, Tabebuia pentaphylla andTecoma spp., while the latter is found inAdenocalymma alliaceum, Haplophragma adenophyllum, Jacaranda mimosifolia, Millingtonia hortensis, Spathodea campanulata, Tecoma capensis andT. jasminoides. Parmentiera cereifera has an arc of vascular elements passing through the single gap. Phylogenetic aspect of nodal anatomy is discussed.
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