334 THE LICHEN-FLORA 



forma commutata, (Ach.) thallus dissolved and pulverulent. 



On trees, beech, and birch, rare. 



Stn :— Ach. L. TJ. 352? Mass. Ric. 136. Mudd Man. 179. 

 Fig :— Mass. Kic. f. 269. 



Exs :— Zw. 373. Hepp 744. Schser. 581 (in part). 

 Geog. Disteib : — Germany. 

 Bot. Pbov:— 2...19...24...28. 

 England : — Sussex ! Mr. Borrer. 



Ibeland : — Cahiriogue ; Ardrum near Cork ; Killaloe, Clare. Mr. Carroll. 

 Armagh near the Obelisk. Adm. Jones. 

 Spores as in the type. 



247. L. globulosa, Flk. greyish-white, thin, effuse, granuloso- 

 leprose, (K — C — ) ; apothecia minute, numerous, scattered, adnate, 

 black, tvherculate or semiglobose, convex, immarginate, internally 

 nigricant ; hypothecium very pale, dirty-clouded ; hymenium of pale 

 bluish nigrescence, paraphyses distinct, apices nigricant ; spores 8, 

 colourless, oblongo-fusiform, 1 -septate, small. 



On trees, not unfrequent. 



Syn :— Elk. Deut. Iich. 181. (1821.) Nyl. Lapp. Or. 149. Crombie Enum. 

 69. T. M. Eries Scand. 575. 



ElG : — Hepp Sporen t. 4. f . 16. 



Exs :— M. & NT 1330. Fries 350. Zw. 89 and 89 C. Anzi It. S. 258. Hepp 16. 

 Eellm. 155. 



Geog. Distbib : — E. Lapland, Germany, Italy, Hungary, Switzerland. 



Bot. Pbov:— 15... 19. 



Scotland : — Loch Katrine ! Lochaber. Bev. J. M. Crombie. 



Ibeland : — Glencar co. Kerry. Mr. Carroll. 



Beadily distinguished from L. .cyrtelia and L. amamala by careful observation 

 and comparison of the above characters and the size and form of the spores 

 .010— .012 mm. long, .003 mm. broad. " Spores .009— .012 mm. long, .002— 

 .003 mm. broad. Gelatina hymenea I blue then vinous." (Nyl.) "Spores 

 .009 — .015 ititti long .002— .0035 mm. broad. Spermatia slender, straightish 

 or slightly curved .004—5 mm. long." (T. M. tries.) 



248. L. denigrata, Fr. fusco-nigricant, somewhat virescent, thin, 

 effuse, minutely granulose, (K — C — ) ; apothecia minute, conglo- 

 merate, sessile, livid-black, convex, sub-immarginate ; hypothecium 

 colourless, pale-yellowish ; paraphyses distinct, darker, somewhat 

 virescent, apices yellowish-fuscescent ; spores 8, colourless, elliptico- 

 oblong or ovate, straight or slightly curved, 1 -septate, small. 



On old pales, posts, <fec, not unfrequent. 1831. 



Stn :— Fr. L. Eur. 270. (1831.) Nyl. Scand. 202. 



Fig :— E. Bot. Suppl. 2711. Hepp Sporen t. 4. f. 14. 



Exs :— Hepp 14. Anzi It. S. 256. Zw. 394, 



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



Bot. Pbov:— 2, 3.. .5.. .10. 



England : — Esher, Surrey ; Henfield and Boxgrove, Sussex. Mr. Borrer. 

 (1851.) Farndale ! near Marskee, Cleveland. Mr. Mudd. Shermanbury ! Sussex. 

 Mr. Larbalestier. Oaksey near Cirencester. Mr. Joshua. Wheatfield Park ! 

 Oxfordshire. Mr. Larbalestier. near Treflach Hall ! Shropshire, and Penzance ! 

 Bet). T. Salwey. Caer Caradoc ! Shropshire. Norton Camp ! Berwick ! near 

 Shrewsbury. 



" Gelatina hymenea I blue. Spores .009 — .013 mm. long, .0025 — .004 mm. 

 broad." (Nyl.) Spores .01 — .011 mm. long, .003 mm. broad. 



249. L. pulverea, Borr. pale-greyish-green, minutely granuloso- 

 pulverulent or mealy, soft, effuse, indeterminate, moderately thick, 

 (K yellow C — ) ; apothecia rather large, scattered or conglomerate, 

 adnato-sessile, black, internally pale, plane, with a paler livid slightly 



