872 SPH^EIACEI. 



Parasitic on Tarious species of Diatrype. 



Asci clavate. Sporidia often swollen on ono side, like the fmstules of 

 £unotia, at length multiseptate, with one or two vertical dissepiments 

 (•00083-;0005in.) •02--0125m.m. The perithecia are sprinkled over with 

 short stiff bristles, they appear at first like the ostiola of the Diatrype. It 

 approaches very near to Dotkidea. 



2613. Sphaeria apotheciorum. Mass. " Lichen-cup 



Sphseria." 



CoNiDiA. — Gymnosporium physcicB, Kalchhr. Szep. Gomh. Jeg. 

 B56. Fcld. exs. no. 100. 



AscoPHORE. — Stroma black, rugulose, ratter rough ; peri- 

 thecia aggregated, subrotund, papillate, confluent ; asci some- 

 what obtuse, paraphyses sub-clavate ; sporidia elliptic, bilocular, 

 diaphanous. — Mass. Lich. p. 2Q,f. 41. B. S,- Br. Ann. N.H.no. 

 871. Sphceria epicymatia, Wallr. Fl. Germ. ii. /).775. Nyl. Prod, 

 p. 85. Syn. p. 42. SphcBvia lichenicola, Smrf. Lapp. 218. Fl.Dan. 

 t. 9b6,f. i. E p icy matia vulgaris, Fckl. Sym. Myc.p. 118. 



On apothecia of Parmelia subfusca, &c. N. Wales, &c. 



Berkeley states that the fruit is just like that of Phacopsis varia, Tul. If 

 so the sporidia are triseptate, and ('00035 in.) "009 m.m. long ('00U3 in.) 

 '00714 m.m. broad. 



2614. Sphaeria thallophila. Cooke. '' Sunken Lichen 



Sphffiria." 



Scattered or gregarious, semi-immersed in the lichen thallus ; 

 perithecia subgiobose, carbonaceous, papillate, pierced; asci 

 cylindrical ; sporidia uniseriate, elliptical, uniseptate, not con- 

 stricted, hyaline, at length pale greenish-yellow. 



On thallus of Lecanora subfusca. Glenshee. Aug., 1856. 

 (Dr. L. Lindsay.) 



Sporidia ('0004 in.) '01 m.m. long. It is not improbable that this is a 

 naked Sjjhceria springing from the wood beneath, and perforating the thin 

 lichen thallus. A single small specimen is all we have seen, and that was 

 insufficient to satisfy us on this point. 



2615. Sphaearia ventosaria. Linds. " Lindsay's Lichen 



Spheeria." 



Perithecia seated on thalline cones, as stellate points girt by 

 a sort of thalline exciple, smooth and black, or pruinose ; spori- 

 dia simple, then uniseptate, broadly ellipsoid or oval and con- 

 stricted, brown. — Lindsay, Trans. Roy. Soc. Ed. xxiv. p. 439. 

 XXV. p. 357. Trans. Linn. Soc. xxvii. p. 346, t. 50, /. 10. Quart. 



