136 



THE LICHEN-FLORA 



f. muscigena, (WMnb.) darker, cervino-fuscescent, generally albo- 

 coesio-pruinose, lacinice shorter, more distinct, ascending. 

 On moss. 1861. 



Stn :— WMnb. El. Lapp. 422. (1812) Ach. Syn. 212. Nyl. Syn. 420. Mudd 

 Man. 110. „ 



Exs :— Schasr. 486. Am, 64, Anzi Langob. 54. B. Venet. 21. Hepp 875. 

 Geog. Distklb : — Europe. 

 Bot. Pbov : — 15. 



Scotland : — Craig Tullocb. Bev. J. M. Crombie. 

 " Spores .024—30 mm. long, ,011—15 mm. broad," (Nyl.) 



f. venusta, (Ach.) cervine, epruinose, margin of apothecia crowned 

 with laciniolm or horizontal thalline lobtdce. 

 On trees. 1724. 



Stn :— Ach. Meth. 211. (1803.) Syn. 212. Nyl. Syn. 420. 



Fig :— Ach. Meth. t. 8. f . 5. E. Bot. 2063. 



Exs:— M. &N.162. (in part) Schaer. 356, (in part) Maudon 33 Hepp 874. 

 (in part). Anzi It. S. 123. Bohl. 69. Mudd 82. 



Geog. Distbtb : — Europe. 



Bot. Pkov:— 1...3,4 : 5...7...10...U...15...19. 



England :— Yorkshire I Mr. G. Dixon, near Ayton ! Cleveland. Mr. Mudd. 

 Wrenbury, S. Devon. Dr. Holl. Cambridge. Bev. B. Relhan. Oxford, Dr. Sib- 

 thorp. East Allendale and Haydon Bridge, Northumberland. Bev. W. Johnson. 

 Haughmond Hill ! Ensdon, near Shrewsbury ! 



Scotland : — Lochaber. Bev. J. M. Crombie. 



Ireland : — Blarney I and near Cork. Mr. Carroll. 



Wales : — Bettws-y-coed churchyard ! 



All the various forms or states of P. pulveruJemta are readily recognized by 

 the thallus generally or the apices of the lacinise being clothed with minute 

 albo-granulose pruina and the chemical reaction of medulla K — C — . 



" Spores .026—36 mm. long, .012—20 mm. broad." (Nyl.) 



7. P. obscura, (Ehrh.) olivaeeo-viresceni or fuscescent, sub-orbicu- 

 lari-stellate, oppressed, lacinias narrow, inciso-lobate, plane, smooth, 

 margins often sorediate, under surface nigro-fibrilloso-ciliate ; apo- 

 thecia nigro-fuscous, naked, margin pale entire ; spores 8, fuscous, 

 elliptico-oblong, 1-septate ; spermatia very minute, oblong ; (me- 

 dulla white K— C— ). 



On trees, &e. 1808. 



Stn :— Ehrhart Crypt. 177. (1785.) Nyl. Syn. 427. P. cydosdis, Aeh. Syn, 216. 

 Mudd Man. 109. 



Eig :— E. Bot. 1942. Hepp Sporen t. 68. f. 596. 



Exs :— Nyl. 33. Hepp 597. Schasr. 355. Anzi It. S. 125. Mudd 80. Leight. 80. 

 Smrft. 68. 



Geog. Distrib : — Europe, Asia, Africa, Australasia. 



Bot. Prov:— 1, 2, 3, 4, 5...7, 8...10, 11...14 ..16...(19— 30.)...31. 



England : — Lakenham ; Seething, Norfolk ; Gisleham, Suffolk. Sir J. E. 

 Smith. (1808.) Sussex. Mr. Borrer. Yarmouth. Mr. Turner, near Ayton ! and 

 Easby! Cleveland. Mr. Mudd. Northumberland and Durham. Mr. Winch. 

 Kelvedon, Essex. Mr. Varenne. Gopsall Park, Leicestershire. Bev. A. Bloxam. 

 Penzance. Dr. Soil. Upton Magna ! and other places near Shrewsbury; Llany- 

 mynech ! 



Scotland : — Appin Argyleshire. Gapt. Ga/rmichad. near Colinton. Dr. 

 Greville. 



Ireland : — Common on rocks and trees. Mr. Ca/rroll. 



Wales : — Edderton I Montgomeryshire. 



Channel Islands :— Guernsey. Bev. T. Salwey. common on all the Islands. 

 Mr. Larbalestier. 



"Spores .004 to .005 in. long, .00175 in. broad." (Mudd.) "Spores .018— 

 25 mm. long, .009— .011 mm. broad." (Nyl.) " Spores .015-25 mm. long, 

 .009—12 mm. broad." (T. M. Fr.) 



