Jordanon

jordanon

[′jȯrd·ən‚än]
(ecology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Jordanon

 

the term proposed by Dutch botanist H. De Friese for microspecies, a taxonomic category of a rank lower than species, in honor of the botanist A. Jordan (1814–97). Jordan included about 200 small, hereditarily stable forms in the species (macrospecies) of spring whitlow grass (in the mustard family). The hereditary stability of characters in a jordanon is caused by apomyxis, that is, re-production by seed in such forms is similar to vegetative reproduction.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Jordanon Friday deployed massive army forces on its Iraqi border, including tanks, army vehicles, missile launchers and soldiers, fearing an ISIS move into the Hashemite Kingdom.
Meeting Mr Davidson and Mr Jordanon Friday felt much like a therapists session.