PHASCEI. 303 



Monoicous; gregarious or slightly tufted, brownish. Leaves 

 crowded, erecto-patent, ovato-acuminate, minutely papillose at 

 the back ; margin rcflcxed ; nerve excurrent ; spores small, 

 pale ; antheridia naked, axillary ; leaf-cells much smaller than 

 in Sphcerangium and shorter ; spores small, pale. 



115. PHYSCOMITRELLA, Schimp. 



Sporangium globose, minutely apiculate ; columella thick; 

 veil campanulate, subvesicular when young ; leaf-cells large, 

 hyaline. 



1. P. patens, Schimp. Hook, fy Wils. t. v.; Eng. Bot. 

 t. 1279. ; (Plate 24, fig. 9) ; Moug. % Nest. n. 704. 



Fields, banks, and dricd-up pools. Bearing fruit in the 

 autumn. 



Monoicous; gregarious, pale-green. Stem 1-3 lines high; 

 leaves spreading, lower scattered, upper crowded, concave, 

 broader above ; nerve slight, ceasing below the tip ; sporangium 

 spherical with a minute point ; spores rather larger, echinu- 

 late ; leaves crumpled when dry ; leaf-cells large. 



116. EPHEMERELLA, Schimp. 



Prothallus persistent ; sporangium immersed, confluent with 

 the lid ; veil regularly cucullate ; spores large ; leaf-cells sub- 

 hexagonal above, more rectangular below. 



1. E. recurvifolia, Schimp. Hook, fy Wils. t. xxxvii. ; 

 Eng. Bot. t. 2932 ; Grev. Sc. Crypt. Fl. t. 353. ; (Moug. fy 

 Nest. n. 902.) 



In fallow fields, heaths, etc. Durham, Northamptonshire, 

 Surrey, and Sussex. Bearing fruit in winter. 



Gregarious, dark-green. Leaves lingulate or linear-lanceo- 

 late, recurved or erect, toothed above ; nerve excurrent ; spo- 

 rangium ovate, subsessile, thick- walled. 



