Robinia pseudoacacia, Black locust Cross-Section

This is an image from a stained standard section of Robinia pseudoacacia, Black locust, made by John P. Limbach of Ripon, Wisconsin. Tyloses are common in Black Locust (see below).

Transmitted Brightfield Illumination

Definition/Function:

KINGDOM: Plantae UNRANKED: Angiosperms UNRANKED: Eudicots UNRANKED: Rosids ORDER: Fabales FAMILY: Fabaceae GENUS: Robinia SPECIES: pseudoacacia

Significance in the Environment:

Characteristic Features:

Tyloses are the membranous tissue that occur in the vessels of some woods. They are common in White Oak and in Black Locust. They occur primarily in the heartwood.

Associated Particles:

References:

Core, H.R., W.A. Cote, and A.C. Day, WOOD STRUCTURE AND IDENTIFICATION, Syracuse Wood Science Series, Vol. 6, 1979.

http://en.wikipedia.org/wiki/Alnus_rubra