TRICHIA.] TEICHIACE^E. 171 



The elaters vary in length in different gatherings ; usually they are 

 long and taper only towards the ends ; sometimes they are short and 

 somewhat fusiform, and either simple or branched. The warts on the 

 spores may be scattered, numbering eight to ten in a line across the 

 hemisphere, or more crowded ; in some American specimens the spores 

 are closely reticulated on one side, and spinulose on the other. The 

 white and rose-coloured plasmodia have not been observed growing 

 together on the same piece of wood, but the sporangia produced from 

 both appear to be identical in every respect ; although shades of 

 difference occur in various gatherings, the colour of the plasmodium 

 cannot be inferred from the ripe fruits. 



Hob. On dead wood. Common. St. Catherines, Somerset (B. M. 387, 

 359, etc.) ; Lyme Regis, Dorset (L-.B.M.141) ; Boynton, Yorkshire 

 (B. M. 1124) ; France (K. 1059); Germany (B. M. 749, 750) ; Iowa 

 (B. M. 836) ; S. Carolina (K. 1053). 



10. T. Botrytis Pers., in Romer, N. Mag. Bot., i., p. 89 (1794). 

 Plasrnodiurn purple-brown, in dead wood. Total height 1*5 to 

 5 mm. Sporangia pyriform or turbinate, stipitate, simple or 

 combined in clusters, 0'6 to 0*8 mm. cliam., red-brown, purple, 

 or black, often marked with paler lines of dehiscence ; mass of 

 elaters and spores yellow-brown, orange, or reddish-brown ; spo- 

 rangium-wall of two layers, the outer charged with granular 

 matter and continued into the stalk, the inner membranous, 

 enclosing the spores. Stalks cylindrical, often combined in clusters 

 of three to eight, furrowed, red or purple-brown, solid, not con- 

 taining spore-like cells. Capillitium of cylindrical or fusiform, 

 pale-brown or reddish-brown elaters, 4 to 5 //, diarn., sometimes 

 branched, gradually tapering to long slender points, marked 

 with three to five flattened or prominent spiral bands, with 

 intervals of about 1 /x. Spores ocliraceous or reddish-yellow, 

 minutely spinulose, 9 to 11 /x, diam. Trichia fragilis Rost., 

 Mon., p. 246 ; Cooke, Myx. Brit., p. 62, figs. 203, 204, 225, 226 ; 

 Blytt, Biclr. K. Norg., Sop. iii. (1892), p. 12 ; Mass., Mon., p. 175. 

 SphtKrocarpus fragilis Sow., Eng. Fung., t. 279 (1803). Trichia 

 pyriformis Fr., Syst. Myc., iii., p. 184. Trichia Decaisneana de 

 Bary, Host., Mon., p. 250; Mass., Mon., p. 185. Trichia lateritia 

 Lev., in Ann. Sc. Nat., Ser.3,v.,p. 167; Rest., Mon., p. 250. Trichia 

 purpurascens Nyl., in Saellsk. Faun. Fl. Fenn., Ny. Ser. (1858, 

 1859), p. 126 ; Blytt, Bidr. K. Korg., Sop. iii. (1892), p. 12 ; Mass., 

 Mon., p. 177. Trichia Garlyleana Mass., in Journ. R. Micr. Soc. 

 (1889), p. 329 ; Mass.. Mon., p. 174. Trichia subfusca Rex, in 

 Proc. Acad. K Sc. Phil (1890), p. 192. 



a. genuina : stalks purple or purple-brown, 1 to T5 mm. long; 

 elaters brown or ochraceous-brown, terminating in a slender 

 tapering point, from 50 to 70 /x long, the spirals disappearing in 

 the last third ; spores yellow. 



Hob. On wood. 



(3. lateritia : stalks red, 2 mm. or more long ; elaters pale 

 burnt-sienna colour, terminating in a more or less abruptly taper- 



