longa, 9 Iata, lanceolata, hasi brevius attenuala, sed in pe- 
tiolum ala fere 1 lata decurrens, acuminata; neryi utrinque 
manifesti, supra elavati, fureati, '.““ distantes, sub angulo 
80° deeurrentes;. fertilium petiolus 6“ longus, lamina 2%.” 
longa, 31,‘ lata, lanceolata, supra paleis dilaceratis rufo - 
ferrugineis densius vestita, infra sporangiis onnsta. 
Acrostichum Spruceanum Fee mse. 
Brasilia horealis, San Gahriel ad Rio Negro (Spruce n. 
2309 et 2245.), Panure (Spruce 2869.). 
Inter Acrosticha Oligolepida paleis ferrugineis discolo- 
ribus insigne et lamina petiolum superne alante; ab der. 
alato Fee, quocum forte hoc charactere et paleis rhizomatis 
quodammode accedit, paleis laminam obtegentibus diversissi- 
mum; nervis supra prominulis et infra manifestis excellit. 
Nomen a cl. Fee datum mutari, quod jam alia species a cl. 
Baker in ‚Hook. syn. fil. 411. Acrostichum Sprucei nomi- 
nata est. (K.) 
Acrostichum Brasiliense Spreng. herb. 
Rhizoma repens, subelongatum, paleis membranaceis, im- 
brieatis, ferrugineo -rubellis, concoloribus 2’ longis, ovatis, 
acntis, parce ciliatis sqnamosum; folia subapproximata, co- 
riacea, supra opaco-nigricanti- viridia, infra alutacea et ad 
tostam una cum petiolo paleis paucis, membranaceis, ovatis, 
acatis obsita, ceterum glahra; sterilium petiolus 2'%” longus, 
lamina ad 6“ longa, 6--8° lata, elongato-lanceolata, basi 
longius attenuata, acuta; nervi subimmersi, teneri, sub angulo 
60° decurrentes; fertilium petiolus 5” longus, lamina 5” 
longa, 4“ lata, elongato -lanceolata, obtusiuscula, 
Acrostichum nigrescens Klotzsch in sched. herh. Berol. 
— Olfersia Klotzsch in sched. hh, Vindob. 
Brasilia, Montevideo (Sello). 
