THE ALTERNATE-LEAVED SPLEENWORT 
ог enmente, cut into two or th lobes, the lobes simple or toothed, the apex unequally toothe 
jore distinetly stalked, and sometimes. 
and less lobed, b 
in the larger 
the base tapering into a kind 
de 
meate pinnule, The upper pinnas are le 
lly bipinnate with one distinct 
nt, and they are faleately curved inwards. The apex of 
the veral coalesce 
ond con 
farcate divisions of the rein which constitutes the 
e extending to each of the teeth, so that the 
vascular bundle of the footstalk, without a midvein, а cen 
ately forked nearly parallel venules. 
pinnule is occupied by from two to five or six fl 
‘Sori linear elongate, on two or 
rond occupying all the pinna: 
Fructifcatiom on the back of the 
n, at length confluent, Zndusium a 
three of the central venules, opening inwardly from each ma 
‘Spore-cases obliquely ob“ 
thin narrow membrane with the margin entire or somewhat wavy 
brown. Spores roughish or muriculate, roundish-oblong. 
groen or sub-evergreen, the fronds being more 
Duration, Тһе caudex is perennial, "The plant is even 
or loss persistent 
almost invariably kept distinct by writers on Ferns, has often, by the same pen 
This plant, thor 
supposed relation either to the 
which has so placed it, been marked as a suspicious species, havin 
Without doubt it stands intermediate between these, but seems 
Wall Rue, or the Forked Spleenwort 
to us perfectly distinol It is a subbipinnate form of the Wall Rue (var. cuneatum), only, which 
hor a thicker and stouter plant, not lobed as this is, and with the apie 
and that is alt 
resembles i 
much more coriaceous and less le 
'orked Spleenwort 
marginal teeth much more uniform. The 
in truth rather rachiform than foliaceous, and its teeth, when present, very diffen 
its lobes being 
in, than serratures, 
being rather of the nature of distant linear fragments split away from the mar 
т more nearly resemble 
A. germanic 
docs not thrive under cultivation, except with careful management, If 
which the few teeth 
This 
ке Fern is one whic 
us soil, with the crown well elevated and covered by a bell-glass in a shaded frame, or put 
ut a bell-g 
е safeguard is, not to allow water to reach their erowns, to keep their 
potted in porou 
ass, it will generally grow with vigour ; but the plants are 
warm close house or pit with 
very liable to perish in winter 
isk 
employed to protect them from the 
roots just moderately moist, and not to suffer the bell-gla 
4, to injure them by retaining a constantly damp atmosphere, which they will do if they 
of being wet 
s glasses, with a couple of small apertures opposite each 
wed, The plan of usi 
nanently ¢ 
are kept p 
ally adopted by Mr. Clowes in cultivating Hymenophyllum, would 
other, as vents, near the top, so suce 
mial to these difficult mountain Aspleniums, The plants may be increased 
по doubt be found cor 
