PHACIDIACEI. 



765 



2307. Colpoma quercinum. Wallr. " Oak-tvrig Colpoma." 



Simple, gregarious, elongated, flexuose, at first closed, prui- 

 nose, blackish cinereous, at length open ; disc broad, pallid ; 

 asci clavate ; sporidia filiform. — Duly. Hyst.p. hO. Fchl.exs.no. 

 760. Cooheexs. no. 397. Cenangium quercinum, Eng.Fl. v. p. 212. 

 Berk. exs. no. 26. Clithris quercinum, Fr. S.M. ii.p. 189. Bull. t. 

 452,/. 4. Tode. t. S,f. 64. ^foug. exs. no. 367. Sphceria collapsa, 

 Sow. t. 373, f. 3. Hyst. quercinum, Nees.f. 300. Schm. exs. no. 65. 



On oak twigs. Common. [Mid. Carolina.] 



(Fi^. 361 .) 



Gen. 327. 



AZLOGRA.PBUM, Lib. 



Perithecia minute, linear, or 

 elliptico-linear, simple or branched, 

 opening with a narrow, longitu- 

 dinal fissure ; asci sacciform, 

 OToid-oblong. — Lib. Exs. no. 272. 

 Duhy Hyst. p. 37. {Fig. 362.) 



Fi^. 362. 



2308. 



Ailogzaphum vagum. Besmz. " Holly-leaf 

 Ailographum." 



Perithecia innato-superficial, scattered, elliptical, or linear- 

 ovate, simple or forked, black, opaque ; lips closely connivent, 

 acute ; asci ellipsoid, attenuated from the base ; sporidia very 

 minute, oblong. — Ann. So. Nat. xix./). 362. Desm. exs. no. 1529. 

 Duhy Hyst. p. 38. A. Hederce, Lib. exs. 272. Rabh. exs. no. 1055, 

 ii. 710. 528. Hyst. micrographum, Be Not. Micro. Ital. iv./. 3. 



On dry coriaceous leaves. (Shere, M.C.C.) 

 The perithecia are scarcely visible to tlie ^ aked eye. 



2309. 



Ailographum maculare. B. d- Br. " Spot 

 Ailographum." 



Perithecia mostly simple, sub-concentric, disposed in orbicular 

 spots ; asci short, oblong; sporidia oblongo-clavate. — Br. ^ Br. 

 Ann.N.H.no. 968, ^ 16,/. 21. 



On an old mat made of Typha. May. Hainault Forest. 



Forming little orbicular black patches, in which the perithecia are dig- 

 posed in a somewhat concentric fashion ; perithecia mostly simple ; asci 

 short, oblong; sporidia oblongo-clavate ('OOOo in.) •0125 m.m. long. My- 

 celium matted, brown, producing here and there dark patches ; very distinct 

 in habit, and in the longer asci. {Fig. 362.) 



