Lake Umbagog.
1907
August
  Thus far I have said but little of the ferns
and grasses although they play no unimportant part in
the pageant of summer and early autumn along roadsides
such as those in our little town of Cambridge. One may find
here in great abundance the cinnamon, interrupted, sensitive, 
spiny, marginal, New York, meadow, Dickson's and ladies
ferns and most numerously of all the common brake. One 
of the beech ferns (Phegopteris phegopteris) is very common in
places, sometimes on banks fully exposed to the sun. Another species
(P. dryopteris) occurs locally not far from the road in
deep rich woods. One of the grape ferns ( I believe)
is generally but sparingly distributed and the rock fern abounds
whenever the conditions favor its peculiar habit of
growth. I have found only a very few royal ferns although 
they are common about the shores of the lake. These are
all the species I have noticed here but I have no doubt
that there are others which I have overlooked. The ostrich fern
should be among them for it grows abundantly on the banks
of the Cambridge River and I have seen it in Grafton Notch
but not as yet near Lakeside. Of the native grasses I
have too slight technical knowledge to speak with any
definiteness but I have never walked along the
Errol road without being impressed by the fact that they
flourish there in great numbers and variety and by the
exceeding beauty and delicacy of some of the species.
The Errol Road. (6)