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The Anatomy of PalmsArecaceae - Palmae$
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P. Barry Tomlinson, James W. Horn, and Jack B. Fisher

Print publication date: 2011

Print ISBN-13: 9780199558926

Published to Oxford Scholarship Online: May 2015

DOI: 10.1093/acprof:osobl/9780199558926.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use.date: 16 May 2022

Vascular Tissues and Cell Inclusions

Vascular Tissues and Cell Inclusions

(p.57) Chapter 7 Vascular Tissues and Cell Inclusions
The Anatomy of Palms

P. Barry Tomlinson

James W. Horn

Jack B. Fisher

Oxford University Press

This chapter examines the vascular tissues and cell inclusions in palms. It identifies the two basic types of vascular tissues involved with long distance transport: xylem that carries mainly water, and phloem that carries mainly sugars and other organic compounds. The two tissues occur together in vascular bundles, which may contain only phloem when small. The chapter discusses xylem and tracheary elements (tracheary element distribution and vessel elements), phloem and sieve elements (histology and cellular details), and cell inclusions (silica, raphide sacs and mucilage canals, tannins, starch). These cell types not themselves organized into discrete tissues, but distributed within other, mainly ground, tissues. They may still have a specific location, as with silica cells which are always associated with fibres.

Keywords:   palms, vascular tissues, xylem, water transport, phloem, vegetative anatomy

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