TAB. XIX. 
AsPiDiifM (Nephrodium) simplicifolium, J. Sm. 
Frondibus pinnatis hirsutulis, pinnis paucis elliptico-oblongis 
integris subserratisve obtusis sessililbus, terminali maxima 
oblongo-lanceolata acuminata basi ina3quali obtusa, arcubus 
venarum pluribus supra se positis soriferis, soris non raro 
confluentibus meniscioideis, inyolucro obsoleto subnullo, 
stipitibus paleaceo-setosis, rachibus venis venulisque hir- 
sutis, caudice subrepente. 
Nephrodium simplicifolium, J. Sm. in Hook. Journ . of Bot. 
3. p. 411, ( name only). Presl , Epim. Bot.p. 50, {name only). 
Abacopteris simplicifolia, Fee. Gen. Fil. p. 310. 
Hab. Samar, Phillipine Islands, Cuming , n. 315. 
To this plant Presl refers the Nephrodium acrostichoides of 
J. Smith, (Cuming’s n. 149, from Luzon), which to us appears 
abundantly distinct ; and which J. Smith himself has subse- 
quently referred to another Genus, Cyclodium , on account of 
his having observed it to have orbicular, not reniform, invo- 
lucres. M. Fee goes further, and separates the N. simplici- 
folium generically both from Nephrodium and from Cyclodium , 
and refers it to his new Genus Abacopteris , by characters 
which do not appear to us very valid or intelligible. Indeed, 
while he describes the indusium “reniforme, sinu affixum,” he 
represents it most distinctly as orbicular and fixed by the centre. 
The indusium or involucre is however so indistinct, that we 
have failed to observe it in our specimens : — and we have fur- 
ther found the sori to be sometimes so confluent as to bring the 
genus very near to Meniscium : and it is not impossible, that 
it may prove some undeveloped state of a more completely 
pinnated Fern. 
Fig. 1. Portion of fertile pinna '.—magnified. 
