is copied into Schkuhr's excellent work on Filices. With re- 
gard to its being the tenella, Raddi has given his reasons for 
thinking it may be so, in these words : " The common length 
of the plant is from 2-3 inches, but when it is found in cold, 
dark, and somewhat moist situations, it attains a height of 9 
inches : this, however, rarely happens ; and then the pinnules 
are deeply laciniated, the root is thicker, and always hairy ;" 
which characters bring the present plant near to the tenella. 
The whole genus is a very beautiful one, and was first dis- 
tinguivshed by Swartz from that of Osmunda, with which it 
agrees in many points. Here, however, there is a concentri- 
cally striated swelling upon the top of the capsule, very much 
indeed approaching to the nature of an annulus, and not a 
transversely striated tubercle, as in Osmunda. The genus 
Botrychium has nothing of the kind, although in habit these 
two genera are similar. In all the species of Anemia that 
have their spikes of fructification arising from the frond, these 
spikes are geminate. 
Fig. 1, Plants, nakiral size. Fig. 2. Part of a fertile frond. Fig. 3. Branch 
of the compound spike. Fig. 4. Capsule. Fig. 5. Seeds, — mcyre or less 
magnified. 
