Tracing the Fern

Prospero's Children
By Jan Siegel
It began ages past in fabled Atlantis, when a mad, power-hungry queen forged a key to a door never meant to be opened by mortal man--its inception would hasten her own death and the extinction of her vainglorious race.
The Ferns (Filicales): Volume 3, The Leptosporangiate Ferns: Treated Comparatively with a View to Their Natural Classification
By F. O. Bower
The anatomy of these Ferns accords with this view. The simple dictyostele of M. intermedia (Fig. 682) is only a slight advance on that of Lophosoria. The leaf-trace of this Fern is divided in large leaves into three straps, ...
The Ferns (Filicales): Volume 1, Analytical Examination of the Criteria of Comparison: Treated Comparatively with a View to Their Natural...
By F. O. Bower
Dryopteris Filix-mas is a common example of this last state, which holds for most of the advanced Polypodiaceous Ferns (compare Fig. 161,4,6). A specially high degree of subdivision of the leaf- trace, accompanied by further ...