(Science: botany) a plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterised by having c wood bark, and pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen.

Origin: Exo- _ -gen: cf. F. Exogene.

Retrieved from "http://www.biology-online.org/bodict/index.php?title=Exogens&oldid=21519"
First | Previous (Exogenous pyrogen) | Next (Exon) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.