135 
NOETHEEN HAED EEEN". Bleclnum Boreale. 
See jpage 71 . 
1. Forked Hard Fern. Bijidum. W. In this plant 
the tips of the leaflets are more or less forked into two or 
three segments, but not uniformly, neither is every leaflet 
afiected. The fronds are a foot long. Axminster, Oflfwell, 
and Seaton. 
2. Anomalous Hard Fern. Anomalum, M. This is of 
a thin and papery texture. All the fronds are similar and 
fruit-bearing, have narrow segments, arch most gracefully, 
and are neat and elegant in their appearance. They vary 
from six inches to a foot in length. M. Hawkchurch. 
3. Divers-leafed Hard Fern. Seterophyllum. W. This 
has two sorts of barren fronds : some of the ordinary form 
and others more or less altered in size and appearance. In 
the altered fronds the leaflets are here and there shorter, 
narrower, and toothed or serrated, or assume a semicircular 
form, with the edges finely cut, and this for some length 
without interruption, though generally some longer leaflets 
appear at intervals. The fertile fronds are similarly afiected. 
Axminster and Thorncombe. 
4. Corroded Hard Fern. Brosum, M. As iron which 
is corroded by rust, or cheese which is nibbled by mice, such 
is the aspect of the edges of the leaflets of this variety. 
The plants are from four to six inches in height. M. 
Thorncombe. 
5. Horned Hard Fern. Cornutum, M. This in all 
respects resembles the ordinary form except that each frond, 
barren and fertile, terminates abruptly and the mid-stalk 
runs out into a horn-like projection. M. Shute. 
6. Tiled Hard Fern. Imbticatum, M. Both barren 
and fertile fronds of this variety have their leaflets over- 
lapping each other as represented in the annexed woodcut. 
The fronds taper below and have their mid-stem and stalk 
channelled and are about six inches high. M. Hawk- 
church. 
7. Serrated Hard Fern. Serratum. W. This is a large 
and tall variety. The barren fronds are a foot high : tne 
fertile ones higher, and often three inches wide in their 
