338 Transactions of the Society. 



TricJiia scahra, v. aurea, Cooke, Myx. U. States, in Ann. 

 Lyceum Nat. Hist. N. York, vol. xi. No. 12, p. 403. 



Exsicc. — Ellis and Everh., N. Amer. Fung., 2100! Eoumeg., 

 Fung. Gall. Exs., 1005 ! _ 



On wood, moss, &c. Britain (Queen's Cottage Wood, Kew ! 

 Birmingham ! Taunton, Notts ! Scarboro' !) ! France ! Germany ! 

 Denmark ! United States ! Ceylon ! 



Spores resembling those of T. nitens, but the latter is separated 

 by the polished sporangia and absence of spines on the spirals of the 

 elaters. The last character also separates T. varia from the present 

 species. 



Yar. analogia, Cooke. Elaters with the spirals furnished with 

 only rudimentary spinules, or in some instances entirely absent. 



Cooke, Myx. U. States, in Ann. Lye. Nat. Hist. N. York, vol. xi. 

 n. 12, p. 403. 



On rotten wood. New York ! 



Trichia Decaisneana, De Bary. 



Sporangia pyriform, brownish flesh-colour, shining, stipitate ; stem 

 red then blackish brown, very much plicate, equal ; mass of capilli- 

 tium and spores yellowish flesh-colour, inclosed in an inner membrane 

 connate witli the outer wdl of the sporangium ; elaters cylindrical, 

 inflated near the tips and ending in smooth, tapering, curved spines 

 3-6 times as long as diameter of elater, spirals 5-6, flexuous, spinu- 

 lose, in some cases parts of the elaters have the spirals in the form 

 of distant ridges or wrinkles; spores delicately warted, 10-11 yu, 



/"1 1 p lYi pTpy 



De Bary in Kost., Mon., p. 250, figs. 219, 220 ; Schroet., p. 112 ; 

 Cooke, Brit. Myx., figs. 219, 220. 



On Jungermannia. Germany. 



According to Schroeter the spores measure from 11-13 /x, the 

 elaters have four spirals, and are 4-5 yu, thick. As these measurements 

 differ from those given by the author of the species, the question that 

 naturally suggests itself is, has Schroeter had the true species of 

 De Bary in view ? In Rostafinski's monograph, fig. 220, the spirals 

 of the elaters are represented as broad and flat, no spines are shown 

 in the figure. 



Trichia persimilis, Karst. 



Sporangia aggregated, sessile, spherical or nearly so, yellowish- 

 brown, shining ; elaters cylindrical, yellow, 4-6 /jl thick, tips smooth, 

 commonly curved, twice the length of the diameter of the elater, 

 spirals 3-1, prominent, rather distant, ivith scattered, spreading, 

 curved, hyaline spines 8-10 fi long, and 4-6 /u, thick; spores 

 spherical, ivarted, ochraceous, 13-14 /x diameter. 



Karsten, in Not. Sallsk. pro Faun, et Flor. Fenn. Fork, 1868, 

 ix. p. 353 ; Karst., Myx. Fenn., p. 139 ; Sacc, SylL, n. 1506. 



On birch-wood. Finland. 



