BARBULA. 103 



nerve thick, prolonged into a short mucro, areolae 

 small, roundish, larger and diaphanous at base, slightly 

 papillose. Caps, oval-oblong, lid large, conical, with 

 an oblique beak. Monoicous. 



Dry banks, &c., near the sea. Spring. 



172. B. ouneifolia, Dichs, Gregarious. St. simple. 

 L. upper crowded, broadly obovate, acuminate, nerve 

 sometimes excurrent, soft, pellucid, areolae loose, lower 

 broadly ovate, aristate. Caps, elliptic, erect, Ud obtuse, 

 short. Basilar membrane of peristome broadish. 

 Monoicous. 



Banks, seacoast. Rare. March, April. 



173. B. Vahliaua, Schultz. Small, gregarious or. 

 Cffispitose. L. lower oblong, upper oblong wedge- 

 shaped, nerve excurrent, subulate, margin erect, some- 

 times reflexed, crenulate. Caps, narrow, elongate, 

 cylindrical, brown, sometimes slightly incurved, lid 

 shortly subulate, annulus broad. Basilar membrane of 

 perist. tesselate. Monoicous. Differs from muralis in 

 its broader, softer leaves, narrower capsule, and longer 

 basilar tabe. 



Damp clayey ground, on roadsides^ &c. Spring. 



First discovered at Maresfield in Sussex, 1868, by 

 Gr. Davies ; Woking, Surrey (Sheppard and Westell) ; 

 Dublin (Moore) ; &o. 



174. B. marginata, B. and 8. St. simple, gregarious 

 or csespitose. L. oblong-lanceolate or linear, concave, 

 margin thickened, nerve sometimes excurrent into a 

 mucro. Caps, cylindric-ovate or oblong, lid very large, 

 shortly rostrate. Basilar membrane narrow. 



Sandstone walls. Rare. May, June. 



Sussex, I. of Wight, Cheshire, Yorkshire, &c. 



175. B. canescens, Br. Simple, gregarious or csespi- 



