115 



32. BRYUM. 



GEN. CHAR. Fruitstalks terminal ; Peristome double ; 

 the exterior of 1 6 teeth ; the interior of a mem- 

 brane cut into 16 equal segments, with filiform 

 processes frequently placed between them ; Ca 

 lyptra dimidiate. (TAB. III.) 



For the same reason as we have united Leskea with Hypnum 

 have we incorporated Po/ilia of Hedwig with Bryum. Meesia, 

 likewise, we have called by the old name of Bryum ; because, 

 although the shortness of the teeth in two of the species be very 

 striking, yet in M. dealbata they are nearly equal in length to 

 the inner peristome. The genus Mnium, we think, cannot be 

 separated from llryum whilst Hypnum undulatum remains with 

 that genus ; whilst Bartramia arcuata, which has a smooth cap- 

 sule, is retained with the other Ear tr amice., having sulcated cap- 

 sules ; and whilst similarly anomalous species are suffered to re- 

 main in many other genera. 



I. Capsules sulcated* 



Br. andro^ynum ; stems nearly simple ; leaves lanceolate, 

 serrated, their margins recurved ; capsules nearly erect, cy- 

 lindrical, sulcated; lid conical. (TAB. XXVIll.) 



Bryum androgynum. Hedw. Sp. Musc.p.\l&. Turn. Muse. Hib. 

 p. 113. Mniinn audrogynum. Linn. Sp. Pip. 1574. Engl Bot. t. 1238. 

 Gymnocephalus -androgymis. Schwaegr. Suppl. pars 2. p. 87. Dill. 

 Mitsc.t.Sl.fA. 



HAB. In woods and on banks. 



Stems from one to two inches in length, slightly branched, 

 erect. Leaves erect, appressed, or subpatent, lanceolate, 

 acute, serrated, especially towards the extremity, the mar- 

 gins recurved ; the nerve reaching nearly to the point ; 

 surface papillose; colour pale-yellow-green, especially when 

 dry. Male flowers, as Hedwig considers them, capitular, 

 terminating an elongated portion of the stem, upon which 

 the leaves gradually become smaller and disappear upwards. 

 Capsule cylindrical, scarcely inclined, sulcated, brown ; lid 

 conical. 



!. Br. palustre; stems much branched; leaves lanceolate, ob- 

 tuse, entire, their margins revolute; capsules ovate, oblique, 

 sulcated; lid conical. (TAB. XXVIll.) 

 i2 



