ACROGENS. 2 5 FERNS, 
Leaf doubly pinnate; leaflets obtuse, serrate, partly confluent ; stalk 
ramentaceous ; indusia near the midrib, kidney-shaped. 
Habitat. Dry ditches and banks. 
Quality. Astringent, emetic. 
Uses. Anthelmintic ; against Bothriocephalus latus.—Pereira. 
Preris. Linneeus. 
Spore-cases in marginal dorsal lines covered by the inflexed edge of the 
leaf, with a vertical ring. 
1. P aguilina, Linneus.—(Brake, Bracken.) Fig. 51. 
Leaf 3 times pinnate, with lanceolate bluntish segments, of which the 
lowest are pinnatifid, and the upper gradually smaller ; terminal 
lobes large, undivided. 
_ Habitat. Heaths, parks, &e. 
Quality. Astringent, anthelmintic, bitter. 
—. Hes rhizome has been used as a substitute for hops ; it furnishes a wretched 
read, 
Osmunpa. Linneus. 
_ Spore-cases in branched masses, stalked, with a horizontal ring. 
1. 0. regalis Linneeus.—(Osmunv Rovat.) 
_ Leaflets oblong, nearly entire, dilated at the base ; clusters of spore-cases 
: panicled, terminal. 
_ Habifat, Bogs and wet meadows. 
ity. Tonic. tic, 
tin Rachitis.. a 
CLASS III. RHIZOGENS (V. K., p. 83.) 
= No species are of importance in this country. 
Fig. 51.—Pinna ot Pteris aquilina. “irae 
