ectophloic siphonostele

ectophloic siphonostele

[‚ek·tə′flō·ək sī′fän·ə‚stēl]
(botany)
A type of stele with pith that has the phloem only on the outside of the xylem.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.