GRIMM1EI. 235 



small-mouthed; veil papillose at the tip; lid shorter than the 

 sporangium ; teeth of peristome short, irregularly cloven, 

 incurvo-patent when dry. Hook. Wils. t. xix.; Eng. Bot. t. 

 1347.; (Plate 21, fig. 4) ; Moug. % Nest. n. 119. 



On rocks and walls, generally in dry places. Bearing fruit 

 in spring. 



Forming low hoary patches. Stem slightly branched ; 

 leaves darkish-green ; margin recurved ; leaf-cells above, ex- 

 cept at the hyaline tips, subquadrate. below sinuous and nar- 

 row, minutely papillose, those at the extreme margin below 

 larger and rectangular ; some of the basal cells without pa- 

 pillae ; veil papillose at the apex ; lid shorter than in the pre- 

 ceding species; teeth short, bifid, the divisions irregular, some- 

 times combined at the tips. 



2. Branclilcts dicliotomous ; innovations fastigiate. 



0. B. sudeticum, Br. Sf Schimp. ; loosely tufted ; stems 

 elongated, somewhat fasciculate ; leaves spreading from an 

 erect base, recurved or incurved, lanceolate, with a short, dia- 

 phanous, slightly toothed point, keeled ; fruitstalk short ; spo- 

 rangium small, ovato-oblong; lid shortly rostrate. Hook, $ 

 #%./.xix.; Eng. Bot. t. 1440. 



On exposed alpine rocks. Bearing fruit in spring. 



Forming loose, olive-green, hoary tufts. Stem prostrate at 

 the base, then ascending ; margin of leaves reflexed ; veil 

 nearly even ; lid shorter than the sporangium, falling off with 

 the veil; ring broad, dissilient; teeth bipartite, varying in 

 length, but tolerably regular, sometimes trifid ; upper leaf-cells 

 quadrate, lower narrow. 



7. B. protensum, Braun ; dioicous ; tufted ; stem ascend- 

 ing; leaves spreading or secund, linear-lanceolate, from an 

 oval or oblong base, acuminate, but rather blunt ; apex not 

 diaphanous; sporangium elliptic-oblong, soft; teeth rather 



