OF GREAT BRITAIN. 245 



say I pale -blue then vinous-red. "Spores 0.013 — 15 mm. long, 0.006 — 7 mm. 

 broad." (Nyl.)" 0.012—16 mm. long, 0.005—7 mm. broad." (T. M. Fr.) 

 " .002 to .0025 in. long, by .001 to .00125 in. broad." (Mudd.) " 9—15 mikrm 

 long, twice as long as broad." (Sepp.) .010 — 011 mm. long. .006 — .007 mm. 

 broad. " Spermatia ellipsoid or sub-cylindrical." (Mudd.) The margins of the 

 thalline. squamules are generally thickened and sometimes slightly upturned. 

 There is a paler state of the thallus, iovmapallescens, Th. M. Fries Scand. 414. 



13. L. Friesii, Ach. brownish-olive, cartilaginous, diffuse, 

 glebuloso-squamose, squamules scattered or crowded, cowvexo-gibbous, 

 smooth and polished ; apothecia black, prominently sessile on the 

 squamules, margin thickish, flexuose and incurved ; hypothecium 

 dark-brown ; spores 8, colourless, ellipsoid, simple, minute ; 

 (thallus K— C— .) 



On trees and palings, rare. 1854. 



Sot :— Ach. in Liljebl. Sv. Fl. p. 610. (1816.) Nyl. Scand. 213. L. myrmtcina, 

 Fr. L. Kef. 344. L. Cwadocensis, Mudd (non Leight.) Man. 169. 



Fig :— Ann. and Mag. N. Hist. ser. 3. 14. t. 9. f. 8. 9. 11. 



Exs :— Mudd 142. Fries 28. 



Geog. Distrib ;— Sweden, Norway. 



Bot. Prov :— 10. 



England : — Farndale ! Stogdale ! Kildale ! Baysdale ! Cleveland ; York- 

 shire. Mr. Mudd. 



Paraphyses coherent, apices fuscescent. "Spores 0.007 — 8 long, 0.003—4 

 mm. broad." (Nyl.) " 0.006— 8 mm. long, 0.003— 5 mm. broad." (T. M. Fr.) 

 ".0015 in. long, by .3075 in. broad. Spermogonia prominent, verru- 

 caeform, black, scattered or confluent. Spermatia ellipsoid or subcylindrical, 

 straight." (Mudd.) Spores .007 mm. long, .004 mm. broad. 



14. L. ostreata, (Hffm.) pale-olive, squamulose, squamules imbri- 

 cate, ascending or sub-erect, reniform, smooth, crenate, margins and 

 under surface albo-granulato-pulverulent ; apothecia black, opake, 

 plane, adnate, slightly glauco-pruinose, margin flexuose ; hypo- 

 thecium fuscous ; spores 8, colourless, ellipsoid, simple, minute ; 

 (thallus K — C crimson.) 



On trees and palings, frequent. 1805. 



Stn :-Hoffm. D. Fl. 2. 163. (1795.) Nyl. Scand. 242. L. scalaris, Ach. Syn. 

 52. Mudd Man. 169. 



Fig :— E. Bot. 1501. Mass. Bic. f. 195. 



Exs :—Zw. 77. Mudd 141. Anzi It. S. 236. M. & N. 1326. Schter. 467. Leight. 

 50. Smrft.134. 



Geog. Distrib :— Germany, Sweden, Denmark, Norway, Bavaria, E. Lap- 

 land, Italy, Austria, Switzerland, Scandinavia. 



Bot. Peov:— 3, 4, 5. ..10. 



England :--Near Halesworth, Suffolk. Mr. Turner. Eton. Mr. Gotobed. 

 Henham, Suffolk. Mr. Turner. Oggeray Gill ! Westerdale ! Cleveland. Mr. 

 Mudd. Thorndon Hall Park ! Essex. Mr. Piggott. Hay Park ! Herefordshire. 

 Rev. T. Salwey. Ursenby ! Yorkshire. Mr. Baker, near Worcester. Dr. Holl. 

 Hendon ; Finchley ; Hampstead ; Epping ; Totteridge ; near Lyndhurst, New 

 Forest. Rev. J. M. Cromhie. Keston Common, Penshurst, Sevenoaks, Kent. 

 Mr. Holmes. Caer Caradoc ! Eastern base of Wrekin ! Haughmond Hill ! Shrop- 

 shire. 



Medulla I — . Excipulum externally dark, internally pale. Paraphyses 

 cohserent. "Spores 0.011—12 mm. long, 0.0025—0.0035 mm. broad." (Nyl.) 

 "0.010— 12 mm. long, 0.0020— 35 mm. broad." (T. M. Fr.) " 001 in. long, by 

 .0005 in. broad." (Mudd.) " Gel. hym. I blue. Spermatia cylindrical, straight." 

 (T. M. Fr.) 



15. L. rnamillaris, (Gouan) white, thick, tartareous, verrucoso- 

 or areolato-sqwamulose, areolae sub-lobato-plicate, turgid and convex, 



