leSl 
surface of the frond receding from the edge, and near the 
apex a pocket, as represented in the woodcut, from the 
centre of which issues a horn that has two or three tiny 
thorns. The length of the frond is eight inches and of the 
pocket an inch and a half. The width of the pocket is 
nearly an inch and its margin is curled. This is an elegant 
and choice Fern called by Lowe Sinum. M. Hawkchurch. 
29. Connecting Hartstongue. Connexum, W. In this 
variety the clusters of spores have scarcely any covering, 
and the frond is linear. Hence it is a connecting link 
between Moore’s varieties, Gymnosorum and Lineare. The 
lower part of the frond is regular and subdivides into 
narrow, flat, angular segments an inch or an inch and a 
half long, which gradually taper to sharp points and are in 
all cases longer and more distinct than in the other much- 
cleft Hartstongues. M. 
30. Narrow-leaved Forked Hartstongue. Attenuato 
furcans. W. This has a narrow frond, an inch wide in 
the middle, tapering both upwards and downwards until it 
becomes not more than one fourth of an inch wide : when 
thus narrow it throws out two or three flat angular forks on 
each side while the frond itself runs on and ends in an acute 
summit. The mid-rib also divides and passes into the forks 
and the remaining portion of the frond. The forkings are 
about an inch long. If there were not these projections at 
the apex, the frond w^ould be lance-shaped. The margin is 
irregularly jagged and the clusters of spores are close to the 
margin and sometimes appear on the upper surface. The 
plant is proliferous. M. Hawkchurch. 
Vabieties hating the tjppee sueeace or THE Frond 
AEFECTED. 
31. Eidged Hartstongue. Jugosum, M. The pecu- 
liarity of this variety consists in having ridges on the upper 
surface of the leaf opposite to the clusters on the under 
surface. The clusters sometimes appear on the upper 
surface on these ridges. Our plants are generally smaller 
