OF GBBAT BRITAIN, 47 



Exs :— M. & N. 1162. Am. 317. 



Geog. Distrib : — Switzerland, Sweden . 



Bot. Prov :— 10. 



England : — Brantsdale, Yorkshire. Mr. Mudd. (1865) 



" Spores .0025— .004 mm. diam." (Nyl.) Spores .003— 004 mm. diam. 



IV. TRACHYLIA. Fr. pr. p. Nyl. 



Thallus thin, granulose, or subleprose, or foreign. Apothecia 

 black, sessile, cupuliform, open, sporal mass black. Spores nigri- 

 cant or fuscous-black, ellipsoid or oblong, 1-septate, rarely pluris- 

 eptate. Spermatia oblong or ellipsoid. 



1 . T. tigillaris, Fr. Jlavo-virescent or citrine, granulose or granu- 

 loso-areolate ; apothecia black, innate or slightly prominent ; spores 

 fusco-nigricant, oblong or ellipsoid, 1-septate. (K — ) 



On old posts, pales, &c, rare. 1805. 



Syn :— T. tigillaris, Fr. Soand. p. 282. Nyl. Syn. 165. Mudd Man. 254. 



Fig :— E. Bot. t. 1530. Nyl. Syn. t. 5. i. 29. 



Exs :— M. & N. 1067. Schaer. 451. Hepp 159. Kab. 214. Zw. 284. Anzi It. S. 

 44. Mudd 240. Smrft. 139. Beich. & Schub. 56. 



Geog. Distrib :— Scandinavia, Germany, Switzerland, Italy. 



Bot. Prov:-3, 4. 



England : — Enfield Chase, Mr. Dickson. (1805). Walthamstow, Loughton, 

 Essex. Mr. E Forster. Soutbtown, near Yarmouth, Mr. D. Turner. Herring- 

 fleet, Suffolk. Rev G. R. Leathes. Colchester. Rev. J. M. Crombie. Felixtow, 

 Suffolk. Mr. Larbalestier. 



"Spores .003 to .0035 in. long, by .00175 to .002 in broad," (Mudd). "Spores 

 .015—25 mm. long, .008 — .011 mm. broad, spermatia ellipsoid. "(Nyl.) 



2. T. tympanella, Fr. albicant or cinerascent, granulose or 

 granuloso-concrescent ; apothecia black, prominent, margin of 

 excipulum cinereo-or albo-suffused, sporal mass black, slightly 

 cinereo-pruinose ; spores fuscous, oblong, 1-septate. (K + ) 



On posts, palings, &c, very common. 1800. 



Stn :— T. tympanella, Fr. Scand. 282. Nyl. Syn. 166. Mudd Man. 254. 



Fig :-E. Bot. 810. Nyl. Syn. t 5. £ 32. 



Exs :— M. & N. 859. Schaer. 438. Hepp 330. 331. Anzi It. S. 45. Langob. 211. 

 Leight. 88 Mudd 240. 



Geog. Distrib :— Scandinavia, Switzerland, Italy, Algeria. 



Bot. Prov :-2, 3, 4, 5.. .10.. .31. 



England :— Yarmouth. Mr. D. Turner. (1800). Parton, Gloucestershire. Mr. 

 W. Joshua. Penshurst ; Brasted ; near Egerton ; Dunk's Green, near Hadlow, 

 Kent. Mr. Holmes. Essex. Mr. Sowerby, Ayton, Bosedale, Yorkshire ! Mr. 

 Mudd. Oswestry, Shropshire. Rev. T. Salwey. Eppicig Forest. Rev. J. M. 

 Crombie. Exminster Marshes, Devon. Mr. Parfitt Haughmond Hill ! Wrekin ! 

 Sutton ! near Shrewsbury ! Aymestrey ! Herefordshire. 



Ireland : — Curraghmore,.near Waterford. Adm. Jones. 



Channel Islands :- Jersey. Mr. Larbalestier. 



" Spores .003 to -0035 in. long, by .0015 to .00175 in broad." (Mudd). " Spores 

 .010—18 mm. long, .007— .012 mm. broad." (Nyl.) 



3. T. stigonella, Fr. parasitic on Pertusariae ; apothecia scarcely 

 prominent, entirely black, plane ; spores fusco-nigricant, ellipsoid, 

 1-septate, obtusely rotundate at the apices. 



On old oaks. 



In T. stigonella, the reaction K is at first bright yellow, then changing to 

 sanguineous. 



Syn:— T. stigonella, Fr. Scand. p. 282, Nyl. Syn. 167. Mudd Man. 254. 



Fig :— Nyl. Syn. t. 5. f. 33. 



Exs :— M. & N. 858. Hepp 332, Schasr. 502. Nyl, 17, Zw. 209, Leight, 226. 

 Am. 905. Crombie 11. 



