200 148 
hairs are sometimes mistaken for ciliate indusia. The sporangia of several species 
are setose by simple or forked hairs. In D. asplenioides and others the head of 
the sporangium is glabrous while its pedicel is furnished with a single, stiff hair. 
Goniopleris is a very distinct subgenus, or, I firmly believe, a very natural 
genus, not nearly related to the other subgenera, Meniscium excepted. The relation 
between Goniopteris and Meniscium will be explained under the latter. Between 
the sixty species dealt with below there are, however, two, D. macrotis and D. 
semihastata, the position of which as members of Goniopteris is rather doubtful. 
It is possible that these two species belong to Cyclosorus. I have not been able to 
find in the specimens seen stellate hairs, still they agree in colour and texture 
with Goniopteris rather than with Cyclosorus. Two other species, D. glandulosa and 
D. Fendleri, which resemble very much species as D. nicaraguensis and D. megalo- 
dus, I have referred to Steiropteris; they differ from Goniopteris in several minute 
characters. 
All the species enumerated below are exclusively American. The subgenus 
is represented in the Old World by two species only, as far as I know, D. silvatica 
(Pappe et Raws.) C. Chr. from South Africa and D. prolifera (Retz.) C. Chr. from 
Africa, Asia and Australia. The American species can be divided into two rather 
natural sections: 
1. Asterochlaena. Lamina upwards gradually narrowed into a pinnatifid apex. 
2. Eugoniopteris. Lamina terminating in a terminal pinna resembling the 
lateral ones. 
Under the latter group I unite into a small group, Microdiclyon Fée, those 
species having meniscioid venation and connecting Goniopteris with Meniscium. Between 
the two sections no absolute limit is to be found. 
Key. 
1. Asterochlaena. Lamina entire bipinnaltifid, upwards gradually narrowed 
into a pinnatifid apex. 
2. Lamina entire, pinnatifid or with some few free pinne below. 
3. Lamina without free pinnz below or casually with a single 
pair of small free auricles. 
4. Lamina lanceolate, crenate or broadly serrulate, scarcely 
2 cm broad, shortly cuneate at base; midrib, veins beneath 
and indusium setose by simple hairs. 
5. Lamina entire or crenate...... 206. D. Cumingiana (Kze.) O. Ktze. 
5. Lamina regularly and broadly serrulate or lobed 
207. D. Francoana (Fourn.) C. Chr. 
4. Lamina broadest above the middle, often irregularly pinna- 
tifid, long and gradually narrowed downwards. Costa, veins 
beneath and indusium stellato-puberulous 
210. D. scolopendrioides (L.) O. Ktze. 
