TAB. LXIII. 
Hymenophyllum fucoides, Sw. 
0 
Frondibus oblongis acuminatis inferne pinnatis, pinnis ovato- 
oblongis bipinnatifidis superne bitripinnatifidis segmentis 
lineari-oblongis obtusis acutissime serratis, costis non raro 
spinosis, soris in ramos breves lateralibus, involucris ovatis 
lato-obovatisve magis minusve spinuloso-dentatis infra 
medium bilabiatis, receptaculis inclusis. 
Hymenophyllum fucoides, Sw. FI. Ind. Occ. p. 1747. Syn. 
Fil. p. 146. Willd. Sp. PL 5. p. 523. Hook. Gen. et Sp. Fil. 
l.p. 101. 
Trichomanes fucoides. Hediv. Fil. cum Ic. 
Hab. Jamaica, Swartz , Pur die. Martinique, Sieber. Summit 
of the Organ mountains, Brazil, Gardner, n. 5951. Peru, 
Poeppig. Forests of the Columbian Andes, Jameson - 
Mexico, (Kunze). Caraccas, Linden , n. 57. 
Some of our specimens are nearly twice the size of that 
here represented; especially those from Prof. W. Jameson: 
and it is certain that the form of the involucre is very 
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 
tripinnatifid 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. 
Fig. 1. Pinna or primary lobe, with an ovate involucre : — 
magnified, f. 2. Portion of a fertile frond with a broader 
obovate involucre : — less magnified . f. 3. Lesser portion of 
a frond, with broadly obovate involucre, and spines on the 
rachis : — magnified. 
