Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Biology |
Creator |
Sperry, John S. |
Other Author |
Zimmermann, Martin H.; McCue, Kent F. |
Title |
Anatomy of the palm Rhapis excelsa, VIII. Vessel network and vessel-length distribution in the stem |
Date |
1982 |
Description |
THE CONCEPT of the vessel, a conducting unit consisting of a series of vessel elements lined up end to end, has been known for well over a century (e.g., Hartig, 1878). The fact that vessels are of limited length is of considerable functional importance. If a vessel is damaged (for example, by an insect), air is drawn into its lumen as water withdraws into neighboring tissue, because xylem water is normally under less than atmospheric pressure. The damaged vessel is thus permanently lost as a functioning unit. Numerous small vessels therefore represent a conservative and safe water-conducting system, while wide and long vessels are much more vulnerable, although a great deal more efficient (Zimmermann, 1978). |
Type |
Text |
Publisher |
Arnold Arboretum |
Volume |
63 |
Issue |
1 |
First Page |
83 |
Last Page |
95 |
Subject |
Palm stems; Palm stem anatomy; Vessel network; Vessel-length distribution; Primary vascular stem tissue; Hydraulic architechture; Water column |
Subject LCSH |
Rhapis excelsa; Rhapis excelsa -- Anatomy; Xylem; Monocotyledons |
Language |
eng |
Bibliographic Citation |
Zimmermann, M. H., McCue, K. F., & Sperry, J. S. (1982). Anatomy of the palm Rhapis excelsa, VIII. Vessel network and vessel-length distribution in the stem. Journal of the Arnold Arboretum, 63(1), 83-95. |
Rights Management |
(c)Arnold Arboretum |
Format Medium |
application/pdf |
Format Extent |
6,179,969 bytes |
Identifier |
ir-main,5997 |
ARK |
ark:/87278/s6r508c9 |
Setname |
ir_uspace |
ID |
706926 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6r508c9 |