Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Histomorphological studies of the tracheary elements and the economic potentials of some tropical hardwoods.

Abstract

As part of a continuation of a series of papers on the morphology of the tracheary elements of West African hardwoods, studies were made of wood samples of 18 species belonging to 14 families, collected in the environs of Benin City, Nigeria. Descriptions and measurements are given of the vessels, fibres, rays, parenchyma and tracheids (from microscopic studies of macerates), with data from chemical analyses (for lignin, starch etc.), data on inclusions (silica, crystals etc.), colour and specific gravity. Brief outlines of uses are included. The species are listed by family: Alstonia boonei, Holarrhena floribunda, Plumeria rubra (Apocynaceae); Jacaranda acutifolia (Bignoniaceae); Cordia platythyrsa (Boraginaceae); Dacryodes edulis (Burseraceae); Boscia salicifolia (Capparidaceae); Anogeissus leiocarpus (Combretaceae); Persea americana (Lauraceae); Combretodendron macrocarpum (Lecythidaceae); Memecylon blakeoides (Melastomataceae); Azadirachta indica , Khaya grandifoliola (Meliaceae); Antiaris africana (Moraceae); Mitragyna ciliata (Rubiaceae); Coula edulis (Olacaceae); Chrysophyllum albidum (Sapotaceae); and Trema guineensis (Ulmaceae).