1899] Davenport, — Ferns of Maranacook, Maine 219 
Botrychium Virginianum, Swz. Frequent in deep damp woods; 
in all stages of development, clearly showing that the so-called var. 
gracile is merely a young state of the plant. 
Dicksonia pilosiuscula, Willd. Everywhere abundant. In view of 
a recent effort to reéstablish Dennstaedtia, it may be well to state that 
Moore and Fournier are the only authorities of note to accept Bern- 
hardi's genus, it having been rejected by the most eminent pteridolo- 
gists from Swartz to Eaton. : 
Onoclea sensibilis, L. Common everywhere. I examined large 
patches of this in mown fields, on hillsides, and other places where it 
had been mutilated, but found no var. obtusilobata, although dwarfed 
and depauperate plants were present in great abundance. 
Onoclea Struthiopteris, Hoffm. In several places, some plants 
magnificent but fertile fronds very scarce. It would be interesting to 
know just why this species fruits so sparingly even under conditions 
that are apparently favorable to its full development. Possibly its 
habit of increasing so rapidly by subterranean runners may have some- 
thing to do with this. 
Ophioglossum vulgatum, L. Large forms in woodland on the border 
of the lake ; also plentiful on a hillside. 
Osmunda cinnamomea, L. and O. Claytoniana, L. Both abundant 
and luxuriant. 
Osmunda rega/is, L. Less abundant, the plants smaller in propor- 
tion and mostly sterile; even where fertile not over two feet tall, thus 
strangely dwarfed for this grand species. 
Phegopteris Dryopteris, Fée. Plentiful in the shade of deep woods, 
about old tree-trunks and often in moss with Ziarella cordifolia. 
Phegopteris hexagonoptera,Fée. Less frequent, seen in one placeonly. 
Phegopteris polypodioides, Fée. Frequent, in great masses by itself 
or mixed with other ferns in mossy clumps, in deep old woods; less 
abundant in exposed situations. 
Pteris aquilina, L. Common everywhere. 
All the ferns here recorded grow within half a mile of Maranacook 
Hotel, but I made many long excursions in a vain effort to find Aspid- 
ium Goldieanum, which it seemed to me ought to grow somewhere in 
that vicinity. The absence of rocky ravines and ledges apparently ac- 
counted for my not finding any Podipodium or the smaller Aspleniums 
or Woodsias; but there are plenty of situations where Cystopteris 
should be found. 
