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AOBPreview published online on September 4, 2002
Annals of Botany, doi:10.1093/aob/mcf211
© 2002 by Annals of Botany Company
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Submitted on February 6, 2002
Revised on May 13, 2002
Accepted on June 26, 2002

Epifluorescent and Histochemical Aspects of Shoot Anatomy of Typha latifolia L., Typha angustifolia L. and Typha glauca Godr

H. A. MCMANUS1*, J. L. SEAGO JR2, and L. C. MARSH2

Affiliation of the authors: 1 Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269, USA; 2 Department of Biology, State University of New York at Oswego, Oswego, NY 13126, USA

* To whom correspondence should be addressed. E-mail: Hilary.McManus{at}uconn.edu.

Using epifluorescent and histochemical techniques, we examined anatomical differences in the shoot organs of Typha latifolia, T. angustifolia and T. glauca. The leaf lamina of T. latifolia and T. glauca had enlarged epidermal cells and a thickened cuticle above the subepidermal vascular bundles; that of T. angustifolia lacked these characteristics. Leaf sheaths were similar among the species and all lacked the epidermal thickenings found in the lamina. The fertile stems had typical scattered vascular bundles with a band of fibres that was most prominent in T. glauca. The sterile stems were only 1 cm in length and contained a multiseriate hypodermis and a uniseriate endodermis over part of their length. The rhizomes were similar except for a pronounced band of fibres surrounding the central core in T. angustifolia. The rhizome was also characterized by an outer cortical region with a large multiseriate hypodermis/exodermis and a uniseriate endodermis with Casparian bands, suberin lamellae and secondarily thickened walls.
Key words: Typha, anatomy, leaf, stems, rhizomes, epidermis, endodermis, hypodermis, cattail.


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