TAB. LXIX. 
Asplenium (Euasplenium) LONGICAUDA, Hook. 
Caudice brevi repente copiose fibroso, stipitibus spithamneis et 
ultra nitidis, frondibus pedalibus ad bipedalem pergamen- 
taceis (siccitate olivaceis) firmis, pinnis 5-9 late oblongo- 
lanceolatis, 6-8 uncialibus acuminatis caudatis proliferis v. 
cauda delapsa truncato-emarginatis margine integerrimis 
v. sinuato-lobatis terminali sfepe longissima caudato-acumi- 
nata et apice prolifera, costa subtus _ prommente, venis 
remotis obliquis simplicibus v. furcatis, soris linearibus 
remotis margine approximatis. 
Asplenium emarginatum, Hook. Sp. Fil. 3, p. 100 (in part), 
not Beauv. 
Hab. Western tropical Africa, S. of the line, Dr. Curror ; 
Prince’s Island, Barter in Baikie’s Niger Expedition, n. 
1900 ; Fernando Po, on trees, Peak Mountain, at an ele- 
vation above the sea of 3000 feet, Gustav Mann , n. 341. 
A good suite of specimens which I now possess of this 
Asplenium from the late Mr. Barter, and from Mr. Gustav 
Mann , has convinced me that I have erred in uniting Dr. 
Curror’ s plant with the A. emarginatum of Palisot de Beau- 
vois: and this will be better, understood when I shall shortly 
give, in the present work, a figure and more perfect charac- 
ter of the true emarginatum. The two plants are certainly 
nearly allied : but the present may be known by the follow- 
ing characters. It is a larger and less delicate plant, of a 
very different and much firmer texture, resembling that of 
parchment : its colour when dry is a dirty olivaceous brown. 
The pinna: are entire (not serrated) and in its normal state 
gradually accuminated at the apex, and the terminal pinna 
is not, though larger than the lateral ones, materially altered 
in shape : but it often happens that the pinnae are proliferous, 
then the lateral ones are narrowly caudate at the apex and 
a scaly bud forms : when this becomes a plant and falls away 
a deep and wide notch takes its place. If the terminal 
pinna is proliferous it is remarkably and gradually attenuated 
(to the length of 1 or 1 foot) and the apex copiously pro- 
liferous. The son are always distant and are situated nearer 
the margin than the costa : the reverse is the case in A. 
emarginatum. 
Tab. LXIX. Represents a proliferous frond of Asplenium 
longicauda natural size . Fig. 1. Portion of a fertile pinna, 
with a sorus, magnified. 
Cesi. 3. 1, 69, 
