'■ I'
I'ht
44 F E R N S O F n o r t h AM E R IC A .
This fern bears a good deal of resemblance to small
forms of the European A . Adiantum-nigmm, for which it is
taken by Michaux. Very small forms of it are somewhat like
A . Ruta-muraria, and the authors of the Synopsis Filicum
remark that it is intermediate between the two.
Plate L I „ Fig. 9 - 1 1 . — Asplenium montanum. The specimen figured
was sent from Northern Alabama by Hon. T. M. P e t e r s . Fig.
10 represents two or three of the fertile segments, and Fig. 1 1 a spore.
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