258 HANDBOOK OF BRITISH MOSSES. 



ring none ; lid rostrate. — Hook, fy Wils. t. xii. ; Eng. Bot. t. 

 2179.; {Moug. % Nest.n. 715.) 



On the ground, especially in calcareous or clay districts, 

 common. Bearing fruit in autumn and winter. 



Forming soft rusty-green tufts. A very variable species, 

 distinguished from T. unguiculata, which is still more variable, 

 by its peculiar tint, recurvo-squarrose, hygroscopic, acuminate 

 leaves, and narrower firmer sporangium. The upper leaf-cells 

 moreover are more distinct and punctiform, while the lower 

 are not so lax or strictly rectangular. 



20. T. recurvifolia, ScMmp. ; loosely tufted ; leaves spread- 

 ing, curved strongly backwards, loosely incumbent when dry, 

 lanceolate from an oblong base, acutely keeled, papillose on 

 either side ; nerve vanishing at the tip ; margin reflexed be- 

 low ; sporangium erect, elongated ; lid subulate ; ring none. 

 — T. fallax, var. S, Hook. & Wils. Bryol. Brit. p. 124. 



On rocks and calcareous walls. Bearing fruit, but rarely, 

 in autumn. 



Forming rufous tufts. Leaves trifarious, not twisted when 

 dry as in the last. 



• 21. T. unguiculata, Hook. §■ Tayl. ; csespitose, soft; leaves 

 more or less spreading, ovato- or oblongo-lanceolate, mucro- 

 nate from the excurrent nerve ; margin recurved ; sporangium 

 subcylindrical, erect; lid subulate. — Hook, ty Wils. t. xii.; 

 Eng. Bot. t. 1299, 1663, 2391, 2393, 2494, 2495. ; {Moug. ty 

 Nest. n. 27.) 



On the ground, especially in a clayey soil. Very common. 

 Bearing fruit in winter. 



Forming wide green tufts. King none; basal membrane 

 very narrow. Extremely variable in height, branching, width 

 and length of leaves, but distinguished from T. fallax in every 

 stage as above. 



