PIIACIDIUM. 391 



On dead holly-leaves. 



Name — Ilex, holly ; growing on holly. 



Common ! 



B. SPORIDIA FUSIFORM OR SUBFUSIFORAL 



7. Phacidiam Calthce. Phil. 



Hypophyllous, congregated or confluent on blown 

 spots, innate, then erumpent ; hymenium plane or convex, 

 brownish or cinereous; asci broadly clavate ; sporidia 8, 

 oblong -fusiform or subclavate, 2-guttulate, 15 — 20 x 5 

 — 7 jul ; paraphyses filiform, occasionally forked at the 

 apices. 



Phacidium Calthce — Phil, in "Grevillea," viii. p. 103. 



On decaying leaves of Caltha palustris. Autumn. 



About ^ to f of a line broad. The epidermis of the 

 leaf forms an indistinct margin, or altogether disappears, 

 leaving the disc exposed. 



Name — Caltha, the generic name of the plant on 

 which it grows. 



Scotland ! (Rev. J. Stevenson). Ruyton-of-the-Eleven- 

 Towns, Salop ! 



8. Phacidium Arctostaphyli. Karst. 



Subgregarious, innate, then erumpent, splitting the 

 epidermis into about five equal, acute, spreading lacinise ; 

 hymenium convex, pale brown, when dry black ; asci 

 clavate ; sporidia 8, elongate-fusiform or oblong-fusiform, 

 straight or curved, with two large guttse, 18 — 22 X 4 — o/u ; 

 paraphyses filiform, coherent, becoming brown at the 

 apices. 



Phacidium Arctostaphyli — Karst., " Symb." p. 256. 

 Propolis phacidioides — Fries, " Summa Veg. Scan.," 

 p. 372. Stictis phacidioides — Fries, " Sys. Myco.," ii. 

 p. 198 ; Berk., " Ann. Nat. Hist.," 162 ; Cooke, " Handbk," 

 2231. Sphceria arbuti — Sow., t. 370, f. 6. Trochila 

 phacidioides — Karst., " Myco. Fenn.," p. 249. 



Exs.— Fries, " Scl. Suec," 297 ; Karst., " Fung. Fenn.," 

 843. 



On leaves of A rctostaphylos Uva- Ursa. 



