232 ON SOME UNDESCRTBEB MUSCI 



of the peristome. — Plate XI, B. fig. 1, plant, nat. size ; 2, perichsetial 

 leaves; 3, cauMne ditto; 4, capsule : — all magnified, 

 4. Bryum rubens, sp. nov. ; dioicum, caule breviusculo, foliis ellipticis 

 ovatisve nervo excurrente mucronatis tenui-marginatis apicem versus 



serratis e cellulis satis raagnis elongatis limitibus angustis firmis 

 areolatisj perichsetialibus angustioribus, theca clavato-oblonga, oper- 

 culo raagno brevi couico acuto, peristomio normali. 

 Hab, Througbout the temperate parts of Europe, Asia, and North- 

 west America, 



Very variable in size, but easily distinguished from B, sanguineum, 

 Brid. (B. erythrocarpum^ Schw.), by its leaves being twice as wide as 

 the margin, distinctly not recurved, the serratures larger, the areola- 

 tion composed of cells of about the same length, but double the width. 

 The capsules are not quite so slender, but in other respects nearly re- 

 semble those of B. sanguineum. "When old, the whole plant becomes 

 of a deep red colour. 



This species has been confused with its near ally B, sanguineum^ and 

 with some others. The following is a summary of the specimens ex- 



amined : 



^ 



In sylvis 



Blankenburgicis. 



jB. erythrocarpum, Istria, Mueller. 



B, longisetum^ from near Hamburg. 



B. turbinatum, Dickson, in Herb. Hooker. 



B, Morisii, Bruch, MSS. Sardinia, Mueller. 



It is possible that B. rubens is B. radiculosum, Brid., but in the 



opkm 



B. ery- 



throcarpum is given, B. radiculosum is enumerated as a slight variety, 

 and not figured. Bridel, too, compares his Moss to B. carneum^ from 

 which it may be assumed that it must be something different; the 

 geniculate seta can scarcely be supposed to be a character worth 

 notice. 



B. sanguineum, Brid., is in habit and appearance a miniature resem- 

 blance to B. alphmm, but B, miens in the same respects approaches 

 more to JS. caspiticium, without however being so nearly allied to it as 

 to B, sanguineum. 



B, Morisii, Bruch, MSS., is in De Notaris' ' Syllabus' enumerated 

 as B, tomentostim. Brid.. but nnw nnnsirlfiTA/l hv fhp author to be a 



