Bnjum.} MUSCI. 31 



9. O. pulchellum, SMITH. Leaves narrow-lanceolate, crisped 

 when dry; teeth of the peristome 16, approached in pairs; cilia 

 16 ; calyptra nearly smooth. Eng. Bot. t. 1787. Muse. Brit. 

 ed.2,p. 134, .21. 



On trees in Ballinascorney Glen, near Dublin. A small species. 

 The calyptra plicate and coloured at the base. 



B. Inner peristome, a membrane divided above. 

 26. BRYUM. Linn. 



Seta terminal. Peristome double ; the outer of 16 teeth ; the 

 inner of a membrane cut above into 16 equal segments, with 

 filiform processes interposed. Calyptra dimidiate. 



1. B. palustre, SWARTZ. Leaves lanceolate, obtuse, entire, 

 their margins revolute ; capsule oblong, subcernuous, suberect, 

 sulcated ; lid conical. Swartz. Muse. Suec. Muse. Brit. ed. 2, 

 p. 193, t. 28. 



In marshy spots ; not uncommon, even at low elevations. An 

 annulus is present at the mouth of the capsule. 



2. B. dealbatum, DICKSON. Stems short; leaves lanceolate 

 acute, plane, reticulated, serrated at the points ; capsule pyri- 

 form, nearly erect. Dicks. Cr. Fasc. 2, t. 5, /. 3. Muse. Brit, 

 ed. 2, p. 196, #.28. 



Mountains in the north of Ireland, Mr. Templeton. This is ex" 

 tremely rare. The above is entered on the verbal authority of the 

 late Mr. Templeton. No locality is given by Mr. Turner in his Must. 

 Hib. With respect to Br. triquetrum, on examining the late Dr. 

 Scott's collection I found specimens marked by that name, but then 

 they were all Bryum ventricosum. 



3. TS.julaceum, SCHRADER. Leaves closely imbricated, broadly 

 ovate, concave, entire, their nerve scarcely percurrent; capsule 

 obovato-cylindraceous, pendulous. Schrad. spicil. p. 70. Muse. 

 Brit. ed. 2, p. 197, *. 28. 



On sandy spots in rocky banks of rivers ; rather rare. The stems 

 are slender, aggregate, of a light yellowish-green, and glossy. 



4. B. crudum, HUDSON. Stems simple; leaves rigid, lan- 

 ceolate, erect, the upper narrower, their margins serrulate, 

 their nerve not quite percurrent; capsule oblongo-pyriform, 

 cernuous. Huds. Fl. Aug. p. 491. Muse. Brit. ed. 2, p. 198, 

 t. 28. 



On the higher mountains ; not uncommon. 



5. B. carneum, LINNJEUS. Stems simple; leaves lanceolate, 

 reticulated, subserrulate, their nerve not quite percurrent ; cap- 

 sule obovate, pendulous. Linn. sp. pi. p. 1587. Muse. Brit, 

 ed. 2, p. 198, t. 29. 



On wet banks ; near Dublin, Cork, and Belfast. Of a small size ; 

 the capsules nearly round ; colour pale. 



6. B. argenteum, LINNAEUS. Leaves closely imbricated, 



