FERN GROTTOES OF FLORIDA 79 
TECTARIA HERACLEIFOLIA (Willd.) Underwood, Bull. 
Torrey Club 33: 200. 1906. 
Rather common on rocks, and conspicuous on account 
of its coarse fronds. Known also from Dade County, 
western Texas, and the West Indies. Formerly con- 
fused with the West Indian T. trifoliata (Aspidium 
trifoliatum (L.) Sw. 
DRYOPTERIS NORMALIS Christensen. 
Common on rocks. Widely distributed on Eocene 
and later limestones from Georgia to California and the 
West Indies. Until recently referred to D. patens (Sw.) 
Kuntze. No specimens from Citrus County seem to 
be in the New York collections, probably because col- 
lectors did not want to bother with such a common 
species. 
Dryopteris FLtormana (Hook.) Kuntze. 
In rich humus. Widely distributed in the coastal 
plain of Georgia, Florida and Alabama. No specimens, 
probably for the same reason as in the last case. 
Dryopreris RADICANS (L.) Maxon, Contr. U. S. Nat. 
Herb. 10: 490. 1908. (Goniopteris reptans (Gmel.) 
Presl; Phegopteris reptans D. C. Eaton.) 
On rocks; one of the rarer species. Known from a 
few other localities in peninsular Florida, and in the 
West Indies. 
A dozen species of ferns on a single acre is rather 
unusual in the United States, but by no means unprece- 
dented. (See notes on the ferns of Scolopendrium 
Lake by Prof. Underwood in the Fern Bulletin for 
October, 1897.) : 
Now for what may be the last chapter in the history 
of the beautiful fern grottoes; and a rather sad one it is. 
In July, 1915, there appeared in several Florida news- 
papers an account of a wonderful cave that had been 
