HYPNUM. 487 



33. Hypnum micans Wils. (Tab. LIX. J.). 



Extremely slender, prostrate, 1-2 inches long, with few, 

 procumbent or ascending filiform branches, forming glossy flat 

 patches of a yellowish or reddish green. Leaves erecto-patent or 

 secund, pointing upwards, minute, hardly \ line long, rounded- 

 ovate, shortly and broadly but acutely pointed, slightly concave ; 

 margin narrowly reflexed below, distinctly denticulate , principally 

 in the upper half ; nerve short and double, or none. Cells short, 

 linear, rather incrassate, 6-10 times as long as wide, angulai 

 rather large, quadrate, pellucid, covering a considerable space 

 and reaching almost to the nerve, forming distinct triangular 

 bands rather than auricles. Dioicous. Fruit unknown. 



Hab. On the face of wet rocks, near waterfalls. Very rare ; South o 

 Ireland ; Borrowdale ; Inverness-shire. 



This extremely rare and pretty species is doubtfully placed here, but no more 

 satisfactory position can be assigned to it until the fruit is discovered ; in its rounded 

 apiculate, serrulate, two-nerved leaves it is quite distinct from any of our mosses. Ii 

 forms delicate patches somewhat resembling H. cuptesszfor/ne var. filifor?ne, but off 

 more golden colour, and quite different on closer inspection. Mitten considers i 

 allied to H. molluscnm. 



It has been found in several localities in the South-west of Ireland, and once ir 

 Borrowdale, and this year (1896) at the time of writing, in Moidart, Inverness-shire 

 by Mr. S. M. Macvicar, but nowhere else in Britain nor in any other country. 



E. CALLIERGON. 



Plants usually tall and erect, often slender, usually slightlj 

 branched. Leaves rarely secund, usually large, broad, obtuse oi 

 apiculate merely, glossy. Usually growing in bogs or on the 

 ground, rarely on rocks. 



{Ls. single-nerved half-way or more : 

 Ls. nerveless or shortly 2-nerved 1 



(Ls. imbricate when dry ; stem almost simple ; 



\ Ls. scarcely imbricate ; stem more or less branched 



{Ls. roundish, very obtuse, brownish; auricles indistinct 35. trifariur, 

 Ls. oblong, yellowish ; auricles distinct 34. stramineun 



/Ls. more or less oblong, usually apiculate, older ls. red 38. sarmentosmt 



''\Stem leaves wide, cordate-ovate, obtuse, usually green 



/Branches few ; auricles not distinctly marked 36. cordifoliut, 



-> \ Branches numerous ; auricles distinct and swollen 37. gigantem 



( Stem green (except when young) ; branches cuspidate ; ls. with hyaline auricles 



6-j 3g. cuspidatut, 



^Stemred; ls. with yellowish auricles 40. Schrebet 



34. Hypnum stramineum Dicks. (Amblystegium stra 

 mineum De Not.). (Tab. LIX. K.). 



Slender; stems erector ascending, not denuded at base no 

 radiculose, simple or slightly divided; divisions straight o 



