Isoëtes tennesseensis (Isoëtaceae), an Octoploid Quillwort from Tennessee

Neil T. Luebke; Jessica M. Budke

doi:10.1640/0002-8444(2003)093[0184:ITIAOQ]2.0.CO;2

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Neil T. Luebke,¹ Jessica M. Budke²

¹Department of Botany, Milwaukee Public Museum, Milwaukee, WI 53233
²Department of Botany, Miami University, Oxford, OH 45056

Abstract

Isoëtes tennesseensis, an octoploid species with a chromosome count of 2n = 88, is described. It occurs in the Hiwassee River in Tennessee. Past collections of this species have been misidentified as Isoëtes macrospora (= I. lacustris). Isoëtes tennesseensis differs from I. lacustris in chromosome number, megaspore and microspore morphology and distribution. Speculation on the origin of this new species is presented.

Citation Download Citation

Neil T. Luebke and Jessica M. Budke "Isoëtes tennesseensis (Isoëtaceae), an Octoploid Quillwort from Tennessee," American Fern Journal 93(4), 184-190, (1 October 2003). https://doi.org/10.1640/0002-8444(2003)093[0184:ITIAOQ]2.0.CO;2

Published: 1 October 2003

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