Bryum.-} D I PL O PERI ST OM I. 203 



We have no doubt of this being the " B. palustre complicatum 

 rubens, capsulis turbinatis pendulis" of Dillenius, and this is the 

 authority for Hedwig's Mnium turbinatum. How far it merits 

 to be distinguished as a species from B. ccespiticium on the one 

 hand, or B. ventricosum on the other, must still remain a ques- 

 tion. Mohr is disposed to think them the same, and also, that 

 Pohlia inclinata is no other than Webera intermedia) of which 

 he says " nee forte ab insequente specie (B. ccespiticio) sepa- 

 rata esset, si rite peristomium esset investigandum." In another 

 place he doubts if B. boreale and B. pollens are different from 

 B. ccespiticium; and Schwaegrichen informs us that his B. 

 pallescens was considered by Mohr as the same with B. boreale. 

 Of these plants, indeed, we are so unfortunate as to possess no 

 authentic specimens ; but we think that Mohr's opinion upon 

 them is fully confirmed by the figures above quoted, and lately 

 published by Schwaegrichen; for they differ in no essential 

 point from our B. turbinatum, which, as we have already ob- 

 served, is by Mohr united with B. c&spiticium. We have fur- 

 ther added to our list of synonyms the B. Schleicheri and B. 

 longisetum ; the former, indeed, approaching nearer to B. ven- 

 tricosum in its leaves, but agreeing with our plant in its cap- 

 sules ; thus being, as it were, exactly intermediate ; and the 

 latter differing from B. turbinatum in nothing but the length of 

 the fruitstalk. 



All the states of B. turbinatum are more or less furnished 

 with innovations, as may be expected from plants growing in 

 wet places, and the stems vary much in their length. The 

 capsule, too, varies somewhat in figure, but is always pyriform ; 

 and the whole plant is subject to great difference in colour, 

 according to its exposure and to the soil in which it grows. 



16. B. nutans ; stems short, leaves erect lanceolate acuminated 

 serrated above nerve reaching to the point, capsule oblongo- 

 pyriform pendulous. (TAB. XXIX.) 



Bryum nutans. Schreb. FL Lips. p. 81. Turn. Muse. Hib. p. 117. 

 Smith, Fl. Brit. p. 1347. Engl. Sot. t. 1240. Moug. et Nestl. n. 220. 

 and n. 134. (B. oespiticium. ) Hook. Fl. Scot. P. II. p. 151. Hob- 

 son, Brit. Mosses, v. 1. n. 107. Drummond, Muse. Scot. v. 1. n. 99. 

 Am. Disp. Muse. p. 47. 



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