340 Transactions of the Society. 



looking under a 1/4 objective, like warts, the elaters are also very 

 different, having simple stouter tips and crowded spirals, which are 

 not spinulose, 



* * Bands ivith minute depressions. 



Trichia ahrupta, Cooke, fig. 2. 



Sporangia densely gregarious on a well-developed hypothallus, 

 sessile on a broad base, generally more or less polygonal from mutual 

 pressure, clear pale yellow ; mass of elaters and spores orange ; elaters 

 cylindrical, 8-1 1 /x diameter, spirals rather distant, not prominent, 

 with scattered rudimentary spinules, tij)s smooth and equal in thick- 

 ness to elater for a length of 8-10/i, then abruptly terminating in 

 two or three thin, tapering, straight or curved sptines 8-10 /a long ; 

 spores globose, with numerous slightly raised, straight or curved fiat 

 hands furnished ivith minute depressions in a single row, or rarely 

 irregularly scattered, 10-16 fju diameter. 



Cooke, Ann. Lye. Nat. Hist. N. York, v. xi. No. 12, p. 404; 

 Cooke, Myx. Brit., fig. 256 (without description) ; Sacc, Syll., n. 

 1511. (Type in Herb. Kew.) 



On wood. Britain (Ken Wood, Hampstead ! Scarborough !) 

 Westbrooke, Maine, U.S. ! 



A very distinct and beautiful species, most nearly related to 

 T. Jachii in the spores but distinguished by the more numerous and 

 shorter bands, and by the branched tips of the elaters In the last 

 named character it agrees with T. Balfourii, but in the latter the 

 bands on the spores are not punctate. T. intermedia is distinguished 

 by the presence of ridges on the elaters running parallel to their long 

 axes between the spirals. 



Trichia JacMi, Eost., fig. 5. 



Sporangia generally crowded, sessile on a broad or narrow base, 

 hypothallus well developed ; circular, polygonal, or elliptical in shape, 

 dull yellow ; mass of elaters and spores yellow ; elaters cylindrical, 

 5-7 IX thick, tips smooth, acute, straight or a little bent, spirals not 

 very prominent, distant, smooth or with rudimentary spinules ; spores 

 globose, with a few slightly elevated, broad, fiat hands, which are 

 slightly sinuous, sometimes branched, hut not combined to form a 

 netivorJc, surface of hinds with a central row of minute depressions, 



Eost., Mon., p. 258, f. 242 ; Cooke, Myx. Brit., f. 242 ; Balf., 

 Grev., V. 10, p. 117; Schroeter,p. 113; Sac, Syll., n. 1500; Eaunk., 

 Myx. Dan., p. 69, t. 4, f. 5. 



On wood, &c., Britain (Hassock's Gate, Brighton ! Bishop's Wood, 

 Highgate ! Castle Howard, Yorkshire ! Glamis, N.B. !). Germany ! 

 Italy ! Switzerland ! Denmark ! 



Most nearly related to T. ahrupta, from which it is at once dis- 

 tinguished by the comparatively longer bands on the spores, which 



