Gardneriane. N. O. Filices. 
DCCCCLXIU. 
HYMENOPHYLLUM FUCOIDES, Sw. 
Frondibus oblongis acuminatis inferne pinnatis, pinnis ovato- 
ongis bipinnatifidis superne bitripinnatifidis segmentis 
lineari-oblongis obtusis acutissime serratis, costis non raro 
spinosis, soris in ramos breves lateralibus, involucris ovatis 
lato-obovatisve magis minusye spinuloso-dentatis infra 
Some of our specimens are nearly twice the size of that 
here represented ; especially those from Prof. W. Jameson: 
variable, sometimes ovate and nearly entire, sometimes, and, 
more frequently, broadly obovate and more or less deeply 
spinuloso-serrate. The rachis is not winged below by the 
decurrent side branches, and hence the frond is there pinnated; 
while above, the rachis is so winged as to constitute a bi- or 
tripmnatifid frond. The stipes is wingless too, and often 
roughly setose, with short harsh hairs. The root is a creeping; 
slender, filiform, downy caudex, and runs extensively over 
rocks and trees. 
obovate involucre :—less magnified. f. 3. Lesser portion of 
a frond, with broadly obovate inyolucre, and spines on the 
rachis :—magnified. 
