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Isoetes in Alaska and the Aleutians

Publication Type:Journal Article
Year of Publication:1999
Authors:D. M. Britton, Brunton, D. F., Talbot, S. S.
Journal:American Fern Journal
Pagination:133 - 141
Date Published:1999///

Three species of Isoetes are recognized as present in the study area: I. echinospora Durieu diploid, 2n = 22), I. maritima Underw. (tetraploid, 2n = 44) and I. occidentalis L.F. Hend. (hexaploid, 2n = 66). Three interspecific hybrids are expected and two are known to be present: I. Xpseudotruncata D.M. Britton & D.F. Brunton (triploid, 2n = 33) and I. Xtruncata (Eaton) Clute (pentaploid, 2n = 55). The missing hybrid taxon is I. echinospora (diploid)I. occidentalis (hexaploid).

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith