w f , . '
128 FERNS OF NORTH AMERICA.
A . mohrioidesi but, though the specimens I have seen are
old, they still keep in a degree the aculeate points of the
present species.
The sori are mostly near the midveins, and have the
orbicular and peltate indusia of the section PolysticJium. The
margin of the indusium is more or less repand-toothed, or,
in the Californian plants, conspicuously ciliate. The spores
are ovoid and univittate.
Plate L X I I .— Aspidium aculeatum. Fig. i is var. B ra u n ii, from
Vermont. Figs. 2, 3 and 4, the details from the same. Fig. 5 is a
pinna of var. lobahizti ; Fig. 6, of var. Californicum ; Fig. 7, of var.
angulare ; Fig. 8, four pinnæ of var. scopuLimim.
't znokrioides, B o r y , has recently been discovered in a valley some thirty
miles west o f Mount Shasta, in California, by Mr. J . G. L e m m o n . A t first I believed it
to be a distinct species, and proposed to name it after its discoverer, a gentleman whose
own modesly has been the innocent reason why some Californian fern was not long ago
named in his honor. It is a South Chilian and Patagonian fern, and it is ve ry remarkable
that it should occur in California. It will be figured in the last part o f the present work.
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