Status of Psilotum

DR A MACDONALD BIOLOGY amacdona at cs-acad-lan.Lakeheadu.Ca
Wed Oct 19 10:22:44 EST 1994

What is the present state of evidence to support the views of Bierhorst that 
the Psilotophyta are primitive leptosporangiate ferns close to the 
Stromatopteridaceae? I am not happy in class talking about this group as 
Rhynia-like etc....In fact I don't.
amacdona at  (Alastair Macdonald)

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