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Related to Protostele: eustele, siphonostele


A stele consisting of a solid rod of xylem surrounded by phloem
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 It might be outdated or ideologically biased.



a primitive type of central cylinder, or stele, in plants. The protostele consists of xylem and phloem but has no pith or medullary rays.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.