398 



THE LICHEN-FIORA 



Exs :— Nyl. 80. Hepp 47. Zw. 7. Schser. 633. 



Geog. Distrib : — France, Switzerland, Germany. 



Bot. Pbov : — 5, 



England :— Red Hill ! Weir Coppice ! near Shrewsbury. (1870.) 



6. 0. atra, Pers. thallus very thin, forming smooth, pale-yellow 

 or whitish ocellate patches ; lirellas densely crowded towards the centre 

 of the thallodal spot, sessile, depressed, lying in all directions or 

 sub-parallel, linear, generally simple or confluent, fleiuose ; epi- 

 thecium narrow, uniform, rimseform, more or less open and canali- 

 culate ; proper margin thick, elevated, wavy ; spores 8, colourless, 

 obovato-fusiform, somewhat pointed at the extremities, 3-septate, 

 very minute. 



On trees, common. 



Syn :— Pers. in TJst. Ann. Bot. st. 7. p. 30. (1794.) Nyl. Scand. 254. Leight. 

 Br. Graph, p. 18. Mudd Man. 232. 



Eig :— Hoffm. En. t. 3. f. 2. c. Leight. Br. Graph, t. 5. f. 11. 



Exs :— Anzi It. S. 335. 



Geog. Distrib : — France, Switzerland, Germany, Hungary, Italy, Asia, 

 Africa, America. 



Bot. Pbov:— 1, 2, 3...5...7, 8...14, 15...19...30, 31. 



England : — SusBex ! Mr. Borrer. Gopsall ! Leicestershire. Rev. A. Bloxam. 

 Budleigh Salterton. Dr. Dickie, Eordham, Essex. Mr. Varenne. Plymouth and 

 Edenbridge, Kent. Mr Holmes. St. Leonard's Forest ; New Forest ; Epping 

 Forest. Sev. J. M. Crombie. Weir Coppice ! near Shrewsbury, Shropshire. 

 ' Scotland : — Near Edinburgh ! Dr. Greville. near Stirling ; Callander ; Blair 

 Athole ; Lochaber. Rev. J. M. Grombie. 



Ireland: — Dunkettle ! Cork. Mr. Carroll. Knocknagoney ! Colin Glen! 

 Belfast ; Massareene Park ! co. Antrim. Mr. Thompson. 



Wales : — Craig Breidden ! Montgomeryshire ; Gwydir Woods ! Bettws-y 

 coed, Trefriw ! 



Channel Islands : — Jersey and Guernsey. Mr. Larbalestier. 



" Spores .003 to .0035 in. long, .00075 ih. broad." (.Mudd.) " Spores .015— 

 17 mm. long, .004—6 mm. broad." (Nyl.) Spores .0145— .020 mm. long, .004 

 mm. broad. 



forma denigrata, (Ach.) lirellas more or less crowded and numer- 

 ous, irregularly scattered, simple or branched. 

 On ash and sycamore trees, common. 



Syn :— Ach. Meth. 27. (1803.) Syn. 75. Mudd Man. 232. 



Fig :— E. Bot. 1753. (in part). 



Exs :— Nyl. 143. Schasr. 461. Mudd 208. M. & N. 469. 



Geog. Distrib : — France, Switzerland, Sweden, Hungary. 



Bot. Prov:— 1, 2, 3.. .6, 7...10...15...(19— 30)...81. 



England : — Near Ayton ! Cleveland. Mr. Mudd. Exeter. Mr. Parfttt. Marks 

 Hall, Essex. Mr. Varenne. New Forest. Rev. J. M. Crombie. Nesscliffe Hill ! 

 Shropshire. 



Scotland : — Near Stirling. Rev. J. M. Grombie. 



Ireland : — Frequent. Mr. Carroll. 



Wales : — Craig Breidden ! Montgomeryshire. Gwydir Woods ! Bettws-y- 

 coed. Trefriw ! Builth ! Fishguard ! Pembrokeshire. 



Channel Islands : — Jersey and Guernsey. Mr. Xiorbalestier. 



forma nigrita, Leight. UreUce densely crowded and confluent 

 into irregular black central masses. 



On ivy, yew, ash, sycamore, frequent. 



Syn :— Leight. Br. Graph. 18. in part. (1853.) Mudd Man. 232. 



Fig :— Chev. Hist. Graph, t. 3. f. 6. d. 



Exs -.—Leight. 193. Mudd 210. 



Geog. Distrib : — Belgium. 



Bo*. Prov:— 1, 2, 3...5...7...10...15...16. 



England :— Netley Abbey ! Hants. Mr. Lyell. Sussex ! Mr. Borrer. East- 



