254 HANDBOOK OF BRITISH MOSSES. 



On walls and stones. Very common* Bearing fruit in 

 spring. 



Forming little glaucous tufts. Leaves obtuse, with a more 

 or less excurrent nerve ; margin apparently thickened, but 

 really closely recurved; hair- points even. 



Varying with longer stems, larger, longer, or narrow leaves, 

 bluntish points, etc. Occasionally the sporangium is slightly 

 curved. Leaf-cells minute above, filled with chlorophyll, in the 

 lower half gradually longer and hyaline. 

 • 11. T. oblongifolia, Hook. §■ Wils. ; monoicous; grega- 

 rious ; stem short ; leaves spreading, subflaccid, opaque, erect 

 when dry, elliptic, oblong, rather obtuse, with a very small 

 mucro; nerve slightly excurrent ; margin plane; sporangium 

 elongated, narrow, subcylindrical ; lid conico-rostellate; basal 

 membrane broad. — Hook, fy Wils. t. xliii. 



Moist banks, near Dublin, Mr. Drummond. Bearing fruit 

 very early in spring. 



'- Of this T have seen no specimens, nor does it seem to be 

 taken up by Schimper. It is known from the last by the 

 plane margin of the leaves and narrow sporangia, and from 

 T. cuneifolia by the opaque oblong leaves. 



12. T. cuneifolia, Smith ; monoicous ; gregarious; stem 

 short, simple; upper leaves rosulate obovate or spathulate, 

 shortly acuminate; nerve reaching only to the apex, or ex- 

 current and forming a hair-point; sporangium oblong; lid 

 rather short and obtuse ; ring narrow ; basal membrane rather 

 broad. — Hook, if Wils. t. xii. ; Eng. Bot. t. 1510. ; (Mouff. §■ 

 Nest. n. 919.) 



On banks, especially near the sea. Bearing fruit in spring. 



Densely gregarious, soft and flaccid. Lower leaves broadly 

 ovate, acuminate, upper forming a rose-like expansion ; peri- 

 stome much twisted ; leaf-cells rather large, hexagonal above, 



