01? GKEAT BRITAIX. 



331 



Mr. Holmes. South Cerney near Cirencester. Mr. W. Joshua. Yewbarrow Hill 

 Grange, Lancashire. Miss Attwood. Llanymynech Hill ! Shropshire. 



Scotland :— Highlands. Bev. J. Lightfoot, (1772. ) Ben Lawers. Dr. BoU. 

 Craig Guie ! Appin ! Craig Tulloch. Bev. J. M. Grombie. 



Ireland : — North Wall, Dublin. Mr. Broion. near Baldoyle. Dr. Taylor. 

 near Cork and Middleton. Mr. Carroll. North of Ireland. Dr. Moore. 



Wales : — Puffin Island, Anglesea. Bev. A. Bloxam. Great Onne's Head ! 

 Eglwyseg rocks ! 



Channel Islands : — Quenvais ! Jersey ! Cobo, Guernsey. Mr. Larbalestier. 



"Spores .003— .0035 in. long, by .00075 in. broad." (Mudd.) " Spores .018 

 — 30 mm. long, .002—4 mm. broad." (Nyl.) " Spores .014 — 25 mm. long, 

 .002 — 4 mm. broad. Gelatina hymenea I blue then vinous-red. Spermatia 

 filiform, arcuate." (T. M. Fries.) A section of the apothecium shows the 

 hymenium to rest on a nigro-fuscous hypothecium, subtended by a pale mass, 

 with an external thickish nigro-fuscous excipulum. Spores .0145 mm. long, 

 .0035 mm. broad. 



■•;<* Hypothecium colourless. 



t Apotheeia black. 



238. L. sub-nigrata, Nyl. cinereo-nigricant, furfuraceo-diffract, 

 granulose, (K — C — ) ; apotheeia fuscous-black, convex, immarginate, 

 generally conglomerate, internally colourless ; hypothecium colour- 

 less ; spores 8, colourless, ellipsoid, 1-septate, small ; paraphyses 

 i ndistinct. 



On alpine rocks, rare. 1866. 



Syn :— Nyl. in Flora 1866. p. 370. 



Geog. Distrib :— Europe. 



Bot. Prov — 5.. .7. ..11.. .15. 



England : — Force Garth, Teesdale. Dr. Soil. Bathampton ! Mr. Joshua. 

 Abdon Burf ! Shropshire. 



Scotland :— Ben Lawers ; Crainlarick. Dr. Soil. Craig Tulloch. Bev. J. M. 

 Crombie. 



Wales : — North side of Cader Idris ! (1866.) Crib Coch ! Snowdon ! Aran 

 Mowddwy ! 



" Vix separanda a L. denigrata" Nyl. " Spores .009 — .011 mm. long,. 004 — 5 

 mm. broad, Epithecium darkly lutescent." (Nyl. I Spores .010— .013 mm. 

 long, .004— .005 mm. broad. 



239. L. subviridis, Nyl. greenish or dusky-dark-green, thin, 

 continuous, granulato-rugulose, (K — C — ) ; apotheeia black, minute, 

 scattered, sessile, distinctly margined; hypothecium colourless, lateral 

 excipulum brownish ; epithecium plane, brown ; spores 8, colourless, 

 oblong or oviform, 1-septate; paraphyses moderate, apices rather 

 large, roundish, dark-brown ; gelatina hymenea bluish, then tawny- 

 red with iodine. 



On siliceous stones. 1873. 



Syn:— Nyl. in Flora 1873. p. 289. 300. 



Bot. Prov :— 31. 



Channel Islands :— Noirmont Bay, Jersey. Mr. Larbalestier. 



"Belongs probably to the section of L. arlhoniza. Spores .011 — 16 mm. 

 long, .005— 7 mm. broad," (Nyl.) Spores .009- .010 mm. long, .003—4 mm. 

 broad. 



240. L. melastigma, Tayl. reddish-black, thin, continuous, minu- 

 tely granulato-areolate, hypothallus predominating, areola? greenish 

 when wet, (K — C — ) ; apotheeia black, minute, scattered, sessile, 

 plane, with a thickish margin, at length convex and immarginate ; 

 hypothecium pale-yellow, lateral excipulum nigro-fuscous ; hymenium 

 pale-blue in the lower part, paler or nearly colourless above, para- 



