FUNARIEI. 177 



1. P. calcarea, Wahl. ; stem short; upper leaves erecto- 

 patcnt, obovato-oblong, suddenly acuminate, bluntly toothed 

 or entire; sporangium short, pyriform; lid conico-convex ; 

 ring none ; fruitstalk short, twisted above to the right when 

 dry, Hook. $ Wils. t. xx. ; Eng. Boi. t. 1497.; (Moug. 1$ 

 Nest. n. 1019.) 



On calcareous banks, walls, etc. Bearing fruit in spring. 



Monoicous ; forming little loose tufts ; lower leaves distant, 

 upper leaves concave, broadly ovate or obovate, suddenly hair- 

 pointed, bluntly toothed or nearly entire ; nerve ceasing below 

 the tip ; leaf-cells large, as are also those of the nerve though 

 smaller; fruitstalk i an inch long, twisted above to the right 

 and below to the left ; lid blunt. 



Wahlenberg's name is anterior to that of Schwsegrichen, 

 and is rightly restored by Schimper. 



2. F. hibernica, Hook. ; stem slightly elongated ; leaves 

 spreading, ovato-lanceolate, gradually attenuated, sharply 

 toothed; ring none; sporangium short, pyriform ; fruitstalk 

 elongated, twisted throughout to the left. Hook. Wils. t. 

 xx. ; (Moug. ty Nest. n. 726.) 



On calcareous soil in Ireland, North Wales, and Derbyshire. 

 Bearing fruit in spring. 



Closely allied to and resembling the last; leaves gradually 

 attenuated, with even, large cells, and decidedly serrate : spo- 

 rangium less turgid, and the apophysis or neck longer, as well 

 as the fruitstalk, which is differently twisted. 



3. F. hygrometrica, Hediv. ; upper leaves crowded, form- 

 ing a bud-like mass, ovato-oblong, acuminate; perigonial 

 leaves toothed above ; nerve reaching to the apex ; sporangium 

 pyriform, incurved, deeply furrowed when dry ; ring broad, at 

 length revolute ; fruitstalk flexuous. Hook, fy Wils. t. xx. ; 

 Eng. Bot. t. 342. ; (Plate 16, fig. 6) ; Moug. $ Nest. n. 132. 



