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Psilophyton Princeps: The Search for Organic Connection

Francis M. Hueber and Harlan P. Banks
Taxon
Vol. 16, No. 2 (Apr., 1967), pp. 81-85
DOI: 10.2307/1216887
Stable URL: http://www.jstor.org/stable/1216887
Page Count: 7
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Psilophyton Princeps: The Search for Organic Connection
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Abstract

A neotype has been selected for Psilophyton princeps, the type species of Psilophyton. An emended diagnosis has been provided for the genus. The plant will continue to be a spiny axis bearing terminal sporangia. A second species of the genus from the same Gaspé area will, when published, differ in having naked stems. Spiny axes from Gaspé described as Psilophyton princeps var. ornatum by Dawson will be transferred to a new genus on the basis of new evidence. The so-called rhizomes of Psilophyton can usually be referred to Taeniocrada.

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