96 



THE LICHEN-FLORA 



sor-ediate ; apothecia spadiceo-fuscous or rufescent, margin crenu- 

 late, sorediate ; spores 8, colourless, oblong or oblongo-ovoid, 

 simple, straight ; thallus K + C — , medulla K yellow. 

 On posts, palings, &c. not uncommon. 1793. 



Sra:-Web. Spic. 250. (1778). P. aleurUes, Ach. Prodr. 117. (1798). Syn. 

 208. NyL Scand. 105. Mudd Man. 98. Farm, placorodia, Ach. Syn. 196. NyL 

 Scand. 106. 



Fig :— E. Bot. 858. Dicks. Cr. Br. t. 9. f. 6. Hffm. PI. t. 65. f. 2. Hepp 

 Sporen t. 98. 859. 



Exs :— Zw. 54. Schser. 489. 376.- M. and N. 739. Mudd 71. Hepp 859. Anzi 

 Langob. 50. 



Geog. Distbjb : — Denmark, Sweden, Finland, Switzerland, Italy, Bavaria, 

 Germany. 



Bot. Pbov :— 3, 4, 5. . .8. . .10. . .15. 



England :- -Croft @astle Park, Herefordshire. Mr. Dickson. (1793). Henham, 

 Suffolk. Mr. D. Turner, near Windsor. Dr. <?. H. Noehden. Oswestry ! Hay 

 Park near Ludlow ; Oteley Park near Ellesmere. Rev. T. Salwey. Kosedale ; 

 Farndale ; Bransdale ; Baysdale ! Kildale ; Ingleby Park, Yorkshire. Mr. 

 Mudd. GopsalL Leicestershire. Rev. A. Bloxam. Haughmond Hill ! Shropshire, 

 very fine and abundant. 



Scotland : — Scotch Highlands, Rev. J. Dalton. 



"Spores .0015 in. long, by .00075 in. broad." {Mudd.) " Spores .011— 12 

 mm. long, .003 — 4 mm. broad." {Ifyl.) "Spores .006—9 mm. long, .005—6 

 mm. broad." (T. M. Fr.) 



B. Spermatid ellipsoid. 



7. P. commixtum : Nyl. pallido-spadiceous or spadiceo-fuscous i 

 effuse, smooth, irregularly lineari-laciriiate or divided, lacinios plane 

 ascending and entangled, margins not elevated, apices obliquely trun- 

 cate and furcate, concolorous or paler beneath, (K medulla — ) ; 

 apothecia fuscous or fusco-rufous, receptacle plicato-rugose, margin 

 granulose ; spores 8, colourless, oblong, simple, small ; spermatia 

 short, oblongo-ellipsoid or fusiform-ellipsoid. 



On alpine rocks. 



Attention to the form of the apices of the imbricate laciniBB of the thallus, 

 and the spermatia, will at once separate this from P. FaMunense. 



Syn :— NyL Syn. 310. (1858). Crombie in Journ. Bot. n. s. 1. p. 234, 



Fig :— NyL Syn. t. 8. f. 43. E. Bot. t. 653. 



Exs :— Dicks. 23. M. and N. 350. Ati^j Langob. 417. Zw. 184. 



Geog. Distrib : — Central Europe and Scandinavia. 



Bot. Pbov :— 7...9...15. 



England :— Lancashire. Mr Hudson. 



Scotland: — Scotch Mountains! Mr. Dickson. Ben More; Ben-na-boord ; 

 Ben Lawers ; Rev. J. M. Crombie. Loch-na-gar 1 Braemar. Dr. W. L. Lindsay. 

 Bocks north side of Ben Lawers ! Mr. Carroll. 



Wales .-— North Wales. Mr. Griffith. 



" Spores .009— .011 mm. long, .004—5 mm. broad." (Nyl.) Spores .009 mm. 

 long, .005 mm. broad. 



C. Spermatia acicular cylindrical, incrassate at one apex. 



8. P. jwnipervtvwm, (L.) citrino-Jlavescent or pale flavo-virescent 

 or glauco-flavescent, lobato-laciniate, lacinice eroso-crenate, crowded, 

 crisped, smoothish, beneath yellow, rugulose, medulla citrine (K — 

 C+) ; apothecia badio-rufous or badio-fuscous, margin corrugate 

 or crenulato-denticulate ; spores 8, colourless, oblongo-ellipsoid, 



. simple. 



On the earth and trees, in alpine districts. 

 Syn :— Linn. Fl Suec, 1093 NyL Syn. 312. Mudd Man. 79. ' • 



