Resumen

ROTH, Ingrid. Anatomical structure of bark of some Venezuelan tree species of Euphorbiaceae. Acta Bot. Venez. [online]. 2005, vol.28, n.2, pp.461-502. ISSN 0084-5906.

This study analyzes the anatomical structure of the barks of 16 species of forestal trees of the Euphorbiaceace family from the rain forest of the Venezuelan Guayana. The shared characters found were: laticiferous or secretory cells, profusion of stone cells in hard bast, thin rays, suber with "U" shaped wall thickenings and druses or solitary rhomboidal crystals. Due to the polyphyletic origin of the Euphorbiaceae family, the shared characters found may be attributed to the arboreal habit of the studied species.

Palabras clave : Liber; Anatomy; Wood; Euphorbiaceae; Barks; Venezuela.