M. Fée has observed, “ Quelques frondules (pinnz) ne sont 
chargées de sporanges que sur les bords, ce qui les fait ressembler 
a certaines espéces de Pferopsis.” This is of common occurrence 
both on our living and native dried specimens ; but that is not 
all, for there is in that state a distinct, narrow, continuous 7- 
volucre, as in Pteris, closely covering the sori, represented at our 
figs. 2 and 8: and, if the more perfect fertile pinne be carefully 
observed, a very contracted involucre may be seen (at our fig. 5), 
but more distinctly on the back of the pinnz, where a narrow 
inflexed margin clearly shows an approach to the genus Lomaria. 
Few Fern groups are in a more unsettled state than that of 
which the genus Acrostichum is the type; and this is mainly due 
to the prevalent desire to multiply genera on slight grounds. 
Fée’s genus, Vewrocallis, was restricted to the present and the 
very little-known Acrostichum Requienianum, from the Moluccas. 
To these Presl added the Leptochilus lomarioides, of Blume ; 
and Moore the 4. aureo-nitens, Hook., and Acrostichum scandens 
of Raddi, together with two species of his genus Chorizopteris, 
C. bipinnata and C. pinnata, Moore, in ‘ Gard. Chron.’ 1855, p. 
854; but J do not find any such plants described there. 
Puate 58. Fig. 1. Very reduced figure of a plant, with sterile and fertile 
fronds, of Acrostichum (§ Neurocallis) prestantissimum, Bory. 2. Pinnee from a 
barren frond, but in an abnormal state, with marginal sori and a pteridoid in- 
volucre. 3. Portion of the same, magnified, showing the involucrate sorus and 
the venation :—magnified. 4. Upper portion of a fertile frond,—natural size. 
5. Small portion of a fertile pinna, with some of the capsules removed to show 
the venation,—magnified. 
