TRICH0ST0MU5I. 135 



lid rostrate. — Eng. M.p. 33. Grimmia lieterosticlia, MUll. 

 Sijn.pt. 1.7;. 807. 



Stony ground, chiefly in mountainous districts. Fr. 

 Spring. The general appearance of this species is that of 

 the preceding, from which it is mainly distinguished by the 

 shorter teeth of the peristome and the more cylindrical cap- 

 sule. 



6. Tkichostomum microcarpum, Hedw. {Small-fruited 

 Hoary Fringe Moss.) Stems elongated, branched; leaves 

 lanceolate, their diaphanous acuminated points slightly ser- 

 rated ; capsule ovate ; teeth of the peristome rather short ; 

 lid rostrate. — E)ig. Ft. p. 33. Grimmia microcarpa, Miill. 

 Sijn.pt.X.p.^^^^. 



On rocks. Fr. Autumn and Spring. Allied to T. hete- 

 Tostichum, from which it is distinguished by having fascicu- 

 lated stems, and by its capsules being much smaller and 

 thinner in substance. 



tt Leaves never diaphanous at the points. 



7. Tkichostomum aciculare, Beauv. {Dark Mountain 

 Fringe Moss.) Stems elongated, branched ; leaves lan- 

 ceolate, obtuse, serrulate at the points, their nerve vanish- 

 ing before the summit ; capsule oblong ; lid rostrate. — Eng. 

 Fl. p. 34. Grimmia acicularis, Mlill. Sijn. pt. \. p. 801. 



