-Ionga, 4 — 1” lata, lanceolata, ntrinque apice longins at- 
tenuata et acuminata, margine manifeste attenuato, pallido, in- 
tegerrima, nervi vix conspicni, fnrcati, sub angulo 700 de- 
eurrentes, vix '%5”' distantes, apice incrassato liheri inter 
marginem attennatum desinentes; foliorum fertilium petiolus 
2° longus, lamina 6° longa, 1" Inta, elongato -oblenga, hasi 
longius attenuata, breyius acuminata, infra praeier marginem 
sorifera. 
Costa Rica, Vulcan de Barba (C. Hoffmann 83.). 
Paleis hrevioribus ae rigidis ab Aer. attenuato Fee et 
Acer. vagante Mett. diversum,. (K.) 
Acrestichnm polystichum Mett. 
Rhizoma indivisum, validum, adscendens, paleis memhra- 
naceis, rufo -ferrngineis, ovatis, acuminatis, parce eiliatis dense 
squamosum; folia subdensa, multifaria, undique patentia, sub- 
eoriacea, paleis minutissimis, subintegris punetata, denique de- 
nudata; phyllopodia 5 longa; sterilium petiolus 3 longus, 
lamina 6— 8° longa, ad ®%” lata, lato-lanceolata, basi atte- 
auata ala angusta in petiolam deeurrens, acuminala; nervi 
subdensi, teneri, furcati, patenti- subdivergentes ; fertilium pe- 
tiolus 5” longus, lamina 5° longa, linearis. 
Pernvia, Sachapata (Lechler 8715.). 
Affine der. alato Fee, quod foliis oblongo-s. ovato -lan- 
ceolatis, basi longissime in petiolum decurrentibus differt (K.) 
Acrostichum revolvens Kze. 
Rhizoma repens, elongatum, paleis 1—% longis, rigi- 
dis, uigricanti-fuscis, margine anguste ferrugineis adpressis 
squaimosum; folia distanlia, eoriacea, dura, infra in petiolo 
densius, paleis nigrescenti-fuscis, ovatis, integris vel margine 
ferrugineo dentatis adspersa; sterilium petiofis 1-— 12” lon- 
gus, lamina 2", longa, 8“ Iata, ohlonga, basi angusta, ‚ob- 
