Diderma.] FUNGI. 311 



vate, outer thick shining bay, inner yellow, stems capillary short 

 lax, sporidia blackish. Pers. ! Obs. 1. t 3./ 7. Hook. icot. 2. 

 J). 12. Fr. Si/st. Mrjc. v. S.p. 102. — Leocarpiis vernicosus, Greu. ! 

 Fl. Ed, p. 453. Sc. Crypt FL f. 1 11. — Lij cop. fragile^ Dicks- 

 1. t. 3./ 5. Witk. V. 4. p. 353. Sow. t. 136. Purt. v. 3. 

 p. 273, 



On grass, twigs, mosses, Szc. Not uncommon. 



5. 7). spumari aides, Fr. (Spumariadike Diderma); effused 

 criist-like, peridia subrotiind irregular, outer white, inner glau- 

 cous, often forming by confluence a cellular mass, columella 

 spurious white as well as the flocci, sporidia black. FL Dan, 

 t. 1978./. 2. Fr. Syst, Myc, v. S, p. 104. 



Oil leaves, moss, &c. Botanic Garden, Oxford. 3Ir. Baxter. — The 

 specimen before mc has obovate-oblong distinct peridia, stems arising 

 from the kypoihallas, a cylindrical central white columella and Jiocci of 

 the same colour mixed with the sporidia. In form it exact!} resembles 

 D. ohlongnm, to which it was referred by Klotzsch, but Persooii 

 expressly says that that species has no columella, and I can find nothing 

 in the account of that species given by Fries which agrees with the 

 above description of the contents of the peridium, wliich, on the other 

 hand, exactly tallies with his description of Z>. spumarioides. The 

 stem is entirely formed from the hypothallus and in the specimen before 

 me is iiyaline. It resembles in many respects Diuckaa tlerjanSy which 

 does not appear hitherto to have occurred in this country. 



*** Sessile. 



6. D. Trevelydni, Fr. (J/r. Trevelyan s Diderma) ; sessile 

 Qvato-globose, outer peridium splitting into many linear refloxed 

 lacinia:, inner obsolete, columella minute, sporidia black. Fr. 

 Stjst. Myc. V, 3. p, 105. — Lcaiujium ? Trevelyaniy Grev, Sc. 

 Crypt. FL t. 132. 



On Bryu)ii lirjulatum. Northumberland. W. C. Trevelt/an, Esq. 

 About Edinburgh. Dr. Greville. — In specimens connnunicatcd to 

 Mr. Sowerby by Mr. Trevelyan, there is a very sliort but distinct: 

 cylindrical stem; the peridium at first ajipears under the lens like a 

 coriander seed, pale-brown with pallid stiiir which indicate the points 

 at which it will split, and perfectly smooth. U ithin this is a distinct 

 white inner peridium, lining it very closely and [)rt)l)ably in general 

 breaking otlwith it. llocci greyish. 1 can lind no trace of a colnmclh, 

 and in old plants when the Hocci and sporidia are completely gone, the 

 bottom of the peridiunj within is perfectly even. 



7. D.Carjnichacliiimtm, Wink. (Capt. Carmic^aeFs Diderma) ; 

 perfectly sessile, outer peridium brick-red splitting into many 

 revolute rays, inner white intimately connected with the outer, 

 columella large, sporidia black-brown. 



On moss. Appin. dipt. Carmickacl Perfectly distinct from tiic 



foregoing species. The colnnulla resembles that of 7^. umhilicntum. 



8. D. nitcns^ Kl. (skining Diderma) ; applanato-sessilo round 

 Iremisplaricalcttjspitose, outer peridium crust-liko silvery white 



