138 vin. - ATJIYKIUM. 
inches long, broadest at the base, gradually narrowing to- 
wards the acuminated apex. The pinnules are set quite 
distinct along the narrow secondary rachis, which is 
not winged, and they are usually set on nearly at a 
right angle with it- Their apparent form, in consequence 
of the rolling in of the points of the lobes, is linear, but 
in reality they narrow upwards from a broad base to 
the acute apex, and have a considerable enlargement of 
the anterior basal lobe, the anterior basal pinnule being 
moreover enlarged to a degree equally marked. They are 
cut in a pinnatifid manner into numerous linear lobes, the 
lower of which are notched with from five to seven teeth, 
the lobes becoming gradually smaller with fewer teeth 
towards their apex ; the teeth being in almost all ca.ses 
rolled under, and thus giving to the pinnules their re- 
markably narrowed and convex appearance. The veins 
proceed one into each lobe, and there branch into a num- 
ber of simple alternate venules equalling the teeth on the 
margin. The lower anterior venule of each lobe bears a 
sorus, which is placed near the midrib, more than one 
sonis however being borne by the enlarged lobe. The 
sori, which thus form a line on each side the midrib, are 
very short and broad, and at length become confluent 
covering the under surface of the pinnules. 
This does not appear to be an uncommon fem, though 
from its not having been generally discriminated from the 
other Lady ferns, there are no complete statistics of its 
range. It appears, however, to be recorded from the fol- 
lowing provinces: Peninsula, Channel, Thames, Severn, 
North Wales, Humber, East Lowlands, East and West 
Highlands, and some parts of Ireland ; and is probably 
general in its distribution. It is found also in some other 
parts of Europe. 
2. Athyrium Flllx-fcemina, lioth. Drooping Lady 
Fern Fronds lanceolate or broad lanceolate bipinnate ; 
pinnules flat, oblong-lanceolate, deeply pinnatifid ; sori 
