498 



THE LICHEN-FLORA 



V. STRIGULA, Fries. 

 Thallus hypophlaeodal. Apotheoia solitary, sub-innate ; peri- 

 thecium sub-globose, collapsing, at length, dehiscent by an irre- 

 gular fissure or pore ; nucleus gelatinous when moist, black and 

 rigid when dry ; paraphyses indistinct. Spores colourless, 3-sep- 

 tate. 



1. S. Babingtonii, Berk, greyish, thin, filmy ; apothecia dark- 

 brown or nearly black, minute, scattered, depressed ; spores 8, 

 colourless, sub-cymbiform, 3-septate. 



Parasitic on coriaceous perennial leaves, as laurel, box, arbutus, 

 rare, 



STK:-Berk. E. Bot. Suppl. t. 2957. (1849.) Leight. Ang. 1 ich. 70. Mudd 

 Man. 309. 



Pig :— E. Bot. Suppl. t. 2957. 



Exs :- Leight. 35. 



Gkog. Distrib : — Europe. 



Bot. Pkov :-2...4, 5...7, 8.. .10, 11. 



England : — Cambridge! Rev. Prof. Ch. Babington. Gopsal ! Leicestershire. 

 Rev. A. Bloxam. Hurstpierpoint ! Mr. Mitten. Ormsby ! Cleveland ; Rokeby, 

 Durham. Mr. Mudd. Cirencester. Mr. Joshua. 



Wales : — Downing ! Flintshire. Rev. Prof. Ch. Babington. 



'•Spores .0035 to .004 in. long, by .001 in. broad, t. 5. f. 130." (Mudd. J 

 Spores .018— .023 mm. long, .005— .007 mm. broad. 



VI. MELANOTHECA, Fee. 



Thallus scarcely any. Apothecia verrucaroid, not simple but 

 numerous, 3-10 or more confluent, hymenia scai-cely distinct; 

 perithecium black. Spores 8, variously internally divided. 



1. M. gelatinosa, (Chev.) pallescent, macular, determinate ; 

 apothecia round or oblong, opake, depressed, unequal, internally 

 white ; perithecia numerous, minute ; spores 8, colourless, oblougo- 

 ovoid, 3-septate, small ; paraphyses none ; hypothecium colourless. 



On young trees, frequent. 



Stn -.—Arthonia, Chev. Journ. Phys. 1822. p. 54. Nyl. Pyren. 70, 



Exs :— Leight. 223. 358. Mudd 232. Eabh. 780. 



G-eog. Distbib : — Switzerland, Prance. 



Bot. Prov :— 1, 2...5...7...10...15...(19— 26— 30). .31. 



England : — Sussex ! Mr. Borrer. Baysdale ! Cleveland. Mr. Mudd. Tor- 

 quay ! J>r. Deakin. Stableford ! Kaglith ! Downton Castle woods ! Shropshire. 



Scotland : — Glen Cluny, Braemar ; Glen Lochay, Breadalbane. By side of 

 the Garry. Rev. J. M. Crombie. 



Ireland :— Not frequent. Mr. Carroll. Lough Derryclare ! Kylemore ! co. 

 Galway. Mr. Larbalestier. 



Wales :— Woods at Glyn ! and opposite Tanybwlch Hotel, Capel Curie ! 

 Dolgelley ! 



Channel Islands :— Kozel, Jersey. Mr. Larbalestier. 



" Spores .023—27 mm. long, .007— .010 mm. broad." {Wi/l.) 



2. 21. diffusa, Leight. pallido-glaucesctnt or pallido-cinerascent, 

 diffuso-macular, indeterminate ; apothecia large, irregularly round, 

 or linear i-oblong, numerous, diffuse and sub-confluent, opake, de- 

 pressed, unequal, internally colourless ; peritliecia numerous, pro- 

 minent and large; spm-es 8, fuscous, lineari-oblong, 1-septate, con- 

 stricted in the middle, large. 



On young trees, rare. 1865. 



