394 BRITISH DISCOMYCETES. 



13. Phacidiwm Rubi. Fries. 



Innate, roundish, hemispherical or plane, rugulose, 

 black ; splitting into obtuse, unequal latinise ; disc 

 whitish ; paraphyses curved at the tips ; sporidia linear, 

 rounded at the ends with 6 to 8 nuclei. 



Phacidium Rubi — Fries, " Sys. Myco.," ii. p. 578 ; 

 B. and Br., " Ann. Nat. Hist.," No. 586 ; Cooke, " Handbk," 

 No. 2274. 



Exs.— Fries, " Scl. Suec.," No. 56; Rabh., "Fung. 

 Eur.," No. 1028. 



On dead brarnble-stems. Fries says " on leaves of 

 Rabus Idceus." Gregarious, generally confluent, form 

 and size variable, 1 to 2 lines broad, when fresh shining, 

 when dry opaque. 



"The asci, paraphyses, and sporidia are just the same 

 as in P. coronatum " (B. and Br., I. c). 



Twycross, Warwickshire (Rev. A. Bloxam). 



14. Phacidium coronatum. Fries. 



Gregarious, often confluent, innate-emergent, orbicular, 

 hemispherical-depressed, at first closed, when moist 

 tumid, convex, smooth, shining, black, when dry collapsed, 

 rugose, often umbonate, at length splitting into 5 to 

 10 acute, nearly equal lacinias ; hymenium pallid, livid, 

 or yellowish ; asci cylindraceo-clavate, attenuated at 

 the summit ; sporidia 8, fusoideo-filiform, straight or 

 curved, pseudo-multiseptate, 45 — 70 X 2 — 3/u ; paraphyses 

 numerous, filiform, simple, adherent, flexuous or circinate 

 at the apices. 



Spermogonia intermixed with the above, punctiform, 

 globose-depressed, unilocular, filled with spermatia, 

 which are elongated, straight, colourless, about 65/m long. 



Phacidium coronatum — Fries, " Obs.," i. p. 167 ; in 

 " Vet. Ac. Handl.," 1819, p. 108 ; " Sys. Myco.," ii. p. 577 ; 

 "Summa Veg. Scan.," p. 370; Berk., " Eng. Flo.," v. 

 p. 292; Ditm. in Sturm., "Flo.," pt. iii. (1817), p. 127, 

 t. lxiii. ; Grev., t. 52 ; Berk., " Mag. Zool. and Bot.," vol. i. 

 No. 58, t. 15, f. 5; Corda, "Icon.," iii. p. 31, t. 5, f. 81 ; 



