1. PI biserrata. 
Truncus obliquus diametri 1"; folia chartacea rigida flavo-viridia glabra, difformia, 
sterilium petiolus 1—4" longus, stramineus, anguste alatus, lamina 1 — 1 Vt‘ longa, 
lanceolata vel lato-lanceolata, acuminata, pinnatisecta, apice pinnatifida; segmenta nume- 
rosa, e medio utrinque decrescentia , media 1V 2 — 2!4" longa, 4 — 5"' lata, patentia, 
vel patenti-divergentia subfalcata basi sursum paullulum dilatata adnata et ala angusta 
herbacea vel callosa coadunata, oblongo- vel elongato-oblongo-lanceolata , acuminata, 
inaequaliler vel duplicato-argute serrulata, superiora approximata, inferiora subdistantia, 
basi inferiore soluta, decrescentia; nervi secundarii manifesti, 14 distantes, sub angulo 
60° decurrentes, indivisi vel furcati, dentes intrantes; foliorum fertilium petiolus 2 — 3" 
longus; lamina 1% — 2' longa, elongato-lanceolata ; segmenta subdistantia, oblique 
patentia, 1 — 3" longa, 2 — 214'" lata, basi sursum dilatata adnata et ala angustissima 
sulcis lateralibus petioli abscondita, coadunata, linearia, obtusa, margine attenuato sub- 
scarioso subrevoluto dilacerata; nervi secundarii 1 — VA“ 1 distantes, indivisi vel furcati, 
liberi, parte superiore incrassati; sori nervorum partem incrassatam occupantes vix vel 
paullulum in parenchyma nervis interjectum producti, denique confluentes, et totam 
paginam inferiorem, costa excepta, occultantes, margine revoluto vix velati. 
Lomaria Mert. et Lind, in herb. Kunz. 
L ? serrata Moriz herb. 
Columbia, Col. Tovar (Moritz 400). Merida (Linden 556). Mexico (Karwinsky). 
2. PL pyenopliylla. 
Truncus „scandens“? folia coriacea glabra difformia pinnatisecta apice subpinna- 
tifida, basi segmentis infimis abortivis abrupte attenuata; segmenta sessilia, infra ad 
insertionem aerophoro exserto tuberiformi manifesto rotundato instructa , ala angusta 
coadunata; foliorum sterilium petiolus 5" longus; lamina 2!4' longa, oblongo-lanceolata ; 
segmenta numerosa, approximata patentia, 3" longa, VA — 5'" lata, e basi exciso- 
cuneata, elongato-oblongo-lanceolata , acuminata, obtuse dentato - serrata , apice argute 
serrata; nervi secundarii prominuli, 14'" distantes, sub angulo 60° decurrentes, in- 
divisi vel furcati, dentes intrantes; foliorum fertilium petiolus 10" longus, lamina 
2' longa, lanceolata; segmenta erecto-patentia , 2" longa, 2"' lata, linearia, obtusius- 
cula, margine attenuato subscarioso integerrima; nervi !4 — distantes, indivisi vel 
furcati, parte suprema incrassati; sori partem nervorum incrassatam occupantes, paul- 
lulum in parenchyma nervis interjectum extensi, denique contluentes. 
