f i
¡ V
! » ,
I?
I f f u K
" i ' l
• A '
v :
I i • t
I I
I j î l
. I ' Y
■: ■!* 'Y i
Rh<• M
f i l
; t
I I I
i l l
Ft'
I s*f': i
i i
ii6 F E R N S OF NO R TH AM E R IC A .
It was discovered a t Little Falls, New York, by Dr. V a s e y ; at Willoughby
Mountain, Vermont, by C. C. F r o s t ; near Gorham, New Hampshire,
probably by W. F a x o n , in 18 7 2 ; at Mount Mansfield, Vermont,
by C. C. P r i n g l e , in 18 76; in the Adirondacks by Professor P e c k ; on
the northern shore of Lake Superior by Professor M a c o u n ; and originally
at Great Bear Lake by Dr. R i c h a r d s o n .
D e s c r i p t i o n : — As W. hyperborea differs from PV. Ilvensis
in being narrower, more delicate, smoother, and with less
deeply lobed pinnæ, so W. glabella differs from the former
species in being still narrower, more delicate, perfectly smooth,
and in having very slightly lobed pinnæ. The mode of
growth is similar ; the stalks are articulated in the same
way; the chaff is like the chaff of the others, and the only
difference in the indusium is that there are fewer cilia on its
margin. It is a very delicate little fern, and in habit is
much like Asplenium viride.
Although this fern was first described from Dr. Richardson’s
specimens, it is worthy of note that it exists in the
Linnean herbarium under the name of Polypodium fontanum.
It is remarkable that Ruprecht,' without seeing the specimens,
should have guessed this very thing.
Plate LX., Fig. 9 - 1 2 .— Woodsia glabella, from Smugglers Notch,
Mt. Mansfield, Vermont. P'ig. 10 is an enlarged pinna. Fig. 1 1 , a
sorus. Fig. 12, a spore.
‘ E S ib ir ia : Lin næ u s , sed h ie auctoritatem nubiam ad d u x it, an Woodsiam
glabellam v id i t ? aut novam sp. A s p le n i iV ’ (Rupr. D is t r . Crypt., p . 4 1 , sub A thy rio
fontano.')
À I I
i!
A ’i
\
I '
■fi
I I I I
l i i k