332 Transactions of the Society. 



Trichia ][>ur'purascens, Nyl. 



Sporangia stipitate, ovate or splierico-ovate, solitary or gregarious, 

 purplish-red, opaque ; stem striato-rugose (when dry), erect or 

 cernuons, rather firm and thickish, coloured like the sporangium, 

 •which it equals in length ; elaters yellow, 5 /i thick at the centre, 

 attenuated at each end into a smooth, rather jiexuous, very long, 

 tapering apiculus, about 45 fx long ; spirals three, rather prominent, 

 separated by interstices from two to three times their width ; spores 

 globose, verruculose, yellowish ochre ; yellowish under the Microscope, 

 9-11 jx diameter. Nylander, in Sallsk. pro Faun, et Flor. Fenn. 

 notis. Ny. Ser. H, I, p. 126; Sacc, SylL, 1508; Myx. Fenn., iv. 

 p. 137. 



On old fir- wood, Helsingfors, Finland. 



Of the above species I have seen no authentic specimen, but, 

 judging from the description, it appears closely related to, if really 

 distinct from Trichia fragilis. 



Trichia fallax, Eost, figs. 21 and 27. 



Sporangia pyriform or broadly clavate, stipitate, ochraceous, olive- 

 yellow, or sometimes with a tinge of olive-green, dull or shining ; 

 stem darh, usually wrinkled longitudinally, filled with cells which 

 towards the apex pass by degrees into normal spores ; mass of elaters 

 and spores yellow ; elaters simple or branched, fusiform, 5-6 fi at 

 thickest part, ending in long, smooth, tapering tips, spirals rather 

 close, not prominent ; spores globose, minutely verruculose, 10-13 /u, 

 diameter. 



The following forms are recognized by Eostafinski, but they do 

 not appear to be so well defined as the forms of some other species. 



a. minor. Sporangia pyriform or clavate, dirty ochre or brownish, 

 about 1 ■ 5 mm. high, 



/3. genuina. Sporangia pyriform or clavate, ochraceous or olive- 

 green, 2-3*5 mm. high. 



7. cerina. Sporangia pyriform, usually olive-yellow, very thin, 

 and when empty shining, 4-5 mm. high, elaters simple or branched. 



Eost., Mon.. p. 243, figs. 211, 221, 222, 233-236 ; Cooke, Myx. 

 Brit., p. 61, figs. 211, 221, 222, 233-236 ; Sacc, Syll, v. 7, part i., 

 n. 1493 ; Schroeter, p. Ill ; Eaunk., Myx. Dan., p. m, t. 4, f. 4. 



Exsicc. — Fuckel, Fung. Ehen., 1435 {Trichia fallax, var. mifior) ; 

 Jack, Leiner u. Sitzenberger, Krypt. Badens, 420 ; Eab., Fung. Eur., 

 1666 ; Moug. and Nestler, 284 (as Trichia clavata) ; Eoum., Fung. 

 Sel. G-alL, 42 (as Licea circumscissa, Pers., var. pannosa, Eoum.). 



On rotten wood. Britain, (King's Cliffe, Norths. ! Kew ! Bristol ! 

 Scarborough ! Carlisle ! Linlithgow and Glamis, N.B. ! Coed Coch !) ; 

 France ! Germany ! Switzerland ! Denmark ! TJnited States ! Cuba ! 



A well-marked species, characterized externally by the pyriform 

 sporangium supported on a dark-brown or almost black, longitudinally 

 wrinkled stem. The microscoj»ic characters are also well marked, — spores 



