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FUNGAL REMAINS IN THE DEVONIAN TRIMEROPHYTE PSILOPHYTON DAWSONII
Author(s) -
Stubblefield Sara P.,
Banks Harlan P.
Publication year - 1983
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1983.tb12475.x
Subject(s) - pennsylvanian , devonian , biology , extant taxon , chlamydospore , paleontology , botany , sporangium , spore , evolutionary biology , structural basin
Fungal reproductive structures were found within aerial axes of the Late Devonian trimerophyte, Psilophyton dawsonii Banks, Leclercq and Hueber from Quebec, Canada. Specimens are spherical to oval, up to 175 μ m in maximum diam, and exhibit two distinct wall layers. They are restricted to the inner cortical region of infected axes. The fungal bodies resemble species of Palaeomyces from the well‐known Rhynie Chert flora, and are also similar to the chlamydospores commonly found in Pennsylvanian coal ball plants. Among extant organisms they are most similar to oomycetous oogonia and endogonaceous chlamydospores.