360 YORKSHIRE NATURALISTS UNION. 



2540. Chondrioderma physanioides Rost. 

 N.W. — Rokeby, on rotten wood (F.F. '04). 



DIDYMirM Schrad. 



2541. Didymium fapinaceum Schrad. [D. melanopus 

 Fr. ; D. Iiciiiisphericum Ft.; etc.]. 



N.E. — Scarboro'(Mass.,Mon. Myx.,p. 219, pi. 2, figs. 29-33). 



S.W.— Swinefleet (Lees' Fl.). Huddersfield (F.F. '95). 

 Ovenden ; Hebden Bridge : Barkisland ; Skircoat ; Elland,. 

 on bark, leaves, wood, etc. (Fl. Hx.). Sowood, Dewsbury, 

 in a colony of about 500 fructifications, equally distributed 

 over 10-12 square inches, which they had built on the under 

 surface of a blue roofing slate resting on decayed wood 

 troughing on an outhouse, May '02 (P. F. Lee). 



Mid W. — Leeds district (Lees' Fl.). Selby '03. 



N.W. — Masham, on leaves and moss (' Nat.' May '03). 



2542. Didymium squamulosum Fr. 



Common on rotten wood, leaves, especially sycamore, moss,. 

 etc., and very variable. Distribution general. Recorded for 

 all the county divisions. 



2543. Didymium micfocappon Rost. [Physayum uiicvo' 

 carpon Fr. ; P. nigripes Link ; D. nigripes Fr. ; etc.] . 



N.E. — Scarboro' (Tr. iv.). Egton Bridge (F.F. '02). 

 Oxdale, on wood (*' Nat.' Jy. '04). Mulgrave Woods (Tr. 

 B.M.S. '05). 



Mid \V. — Church Fenton ; Leeds district (Lees' Fl.). 



S.E.— Pond Wood, Boynton (W.W.S.). 



S.W. — Owston, on twigs, leaves, etc. (F.F. '99). 



2544. Didymium spumarioides Fr. [Clwudvioderma 

 spumanoidcs Rost. ; C. stromateum Rost. ; etc.] . 



N.E. — Scarboro', on leaves, moss, etc. (Mass., Mon. Myx.). 



2545. Didymium serpula Fr. 



N.E. — Scarboro', on leaves (Mass., Mon. Myx., p. 234, pi. 2, 

 figs. 55-57). Mulgrave Woods (F.F. 1900). Egton Bridge '02. 

 S.W. — Bingley, on dead leaves (Lees' I'l.) 



2546. Didymium confluens Rost. [/). r;'»s/rtf^»/// Fr.j- 

 N.E.— Castle Howard (Mass., Mon. Myx.). Buhner. 



Trans. V.N.U., 1905 (pub. 1905K Bot. Series, Vol. 6. 



