TAB. LXXXVIII. 
Acrostichum: (Poecilopteris) VIRENS, Wall 
Var. minus, fuscatum. 
Caudice crasso horizontali, stipitibus approximatis spithamafig 
et ultra stramineis inferne sparse squamosis, frondibus 1-2 
pedalibus pinnatis ; pinnis sterilium 9 ad 20 subsessilibus 
oblongo-lanceolatis subduplicato-serratis coriaceo-membi’a- 
naceis stepissime laxte-virentibus, venis primariis pinnatis 
secundariis transversis arcuatis angulato-flexuosis, areolis 
saspe appendiculatis, costularibus majoribus inappendicula- 
tis ; fertilium pinnis linearibus. 
Acrostichum virens, Wall. Cat. n. 1033, Hook, et Grev Ic 
Fil. Tab. 221. 
Campium virens, Pr. Tent. Pt. p. 239, Pr. Epim. Bot. p. 170. 
Cyrtogonium virens, J. Sm. in Hook. Journ. Bot. 4, p. 154 . 
Var. minus; fuscatum, pinnis minoribus terminali prolifera 
costis venisque primariis gracilioribus minus conspicuis. 
Hab, Var. minus, fuscatum. India; Concan, Mr. Law. Nil- 
ghiri, on stones by the side of streams, Ivoondah’s Corn, 
elev. 6000 feet, Mclvor, n. 4. 
Notwithstanding the valuable labours of M. Tee and his 
excellent writings and figures of the Acrostichacecs, no group 
of Terns requires more careful study and revision than this 
does. Species are, assuredly, too much multiplied, I fear on 
very slight grounds : and the multitude of Genera only serve 
to puzzle and perplex the student as well as the practical 
Pterodologist himself. By the section or subgenus here 
called “ Poecilopte7-is” we mean that of Presl : but unfortu- 
nately, Poecilopteris of Presl, adopted by Moore as a Genus, 
is Bolbitis of Schott, Campium of Presl, Cyrtogonium of J. Sm. 
Heteroneuron of Tee, Acrostichum of the older authors : and 
if we look to the figures of the generic characters in Mr. 
Moore’s “Index Til.,” Plate VII. we shall find venation of 
two very different kinds ; thus allowing a latitude of structure 
not tolerated in other Tern genera. 
The Acrostichum now figured I quite believe may safely be 
referred to the Acrost. virens, Wall., but the strongly marked 
primary, parallel veins here give place to others which gradu- 
ally merge into an irregular anastomosing as they recede from 
the costa ; and, at the margin, is a set of clavate, free veinlets. 
The colour and size of the pinna; are extremely variable, and 
I fear that several described species will have to be considered 
forms of A. virens of Wallich. 
Tab. LXXXVIII. Fertile plant of Acrostichum (Poecilopteris) 
virens, "Wall ; natural size. Fig. 1. Portion of a sterile pinna, show- 
ing the venation ; and/. 2, Portion of fertile ditto ; magnified. 
Cje:xt. 2. x. 88, 
