OF GREAT BRITAIN. 177 



"Spores .002 to 0025 in. Ions, by .001 in. broad." {Mudd.) " Spores .010—14 

 mm. long, .005—8 mm. broad.'* (Nyl.) "Spores. 009—11 mm. long, .005—6 mm. 

 broad." (T. M. Fr.) 



21 . L. varia * leptacina, (Smrft.) straw-coloured, thin, granulato- 

 squamulose, granules smooth, crenate ; apotheeia plane, olivaceous 

 or nigricant, obsoletely irrorato-pruinose, thalline margin persistent, 

 thickish. (Kfy C y) 



Amongst mosses on boulders in alpine places, rare. 1871. 



Syn :— Smrft. Suppl. 96. (1826.) Tb. Fr. Soand. 260. Crombie in Journ. Bof 

 n. s. 2. 134. L. varia f, terrestris, Leight. Lieh. Fl. 193. 



Exs :— Smrft. 145. 



Geog. Distrib :— Scandinavia. 



Bot. Prov :— 15. 



Scotland :— Summits of Ben Lawers ! and Ben-naboord. Rev. J. M. Crombie. 

 (1871.) 



"Spores .010—12 mm. long, .0045—60 mm. broad." (T. M. Fr.) 



22. L. subintricata, {Nyl.) externally intermediate between L. 

 scepincola and L. intricata, but best distinguished by the minute 

 spores and very slender paraphyses. It is often crustaceous with 

 biatorine apotheeia varying in color from pallido-lutescent, oliv- 

 aceous or olivaceous-black, at length convex, entirely concolorous, 

 (younger apotheeia plane with lutescent margin). 



On wood and bark. 1872. 



Syn :— Nyl. in Flora 1868. p. 478. Th. Fr. Lich. Soand. 265. Crombie in 

 Journ. Bot. n. s. 2. 133. 



Fia :— Hepp Sporen t. 21. f. 192. 



Exs: — Fehm. 133. Hepp 192. 



Geog. Distrib :— East Lapland, 



Bot. Prov :— 15. 



Scotland :—(/. obscurior, Nyl.) Killin & Blair Atbole. Rev. J. M. Crombie. 

 (1872). 



" Spores .007—010 mm. long, .0030— .0035 mm. broad." (Nyl.) 



23. L. atra, (Huds.) whitish or albido-cinerascent, granulose, or 

 granulato-unequal ; apotheeia black, internally nigricant, thalline 

 margin entire, flexuose or sub-crenulate ; spores 8, colourless, 

 ellipsoid, simple ; section of apothecium K black, thallus K yellow 

 C yellow. 



On rocks and trees, frequent. 1762. 



Syn :— Huds. Fl. Angl. ed. 1. 445. (1762.) Ach. Syn. 146. Nyl. Scand. 170. 

 Mudd Man. 145. 



Fig :— E. Bot. 949. Hepp Sporen t. 20. f. 182. and t. 70. f. 613. 



Exs :— Hepp 613. 182. Breutel 401. Fellm. 140. Zw. 63. Anzi It. S. 168. 189. 



Geog. Distkib : — Europe generally, Italy, Switzerland, Hungary, E. Lap- 

 land, Sweden, Tyrol Alps, Algeria. 



BoT. Pkov :-l, 2, 3, 4, 5...10,11...15...18...(19— 30,)-31. 



England :— Airyholme Wood ! Cleveland. Mr. Mudd. Northumberland and 

 Durham. Mr. Winch. Kelvedon, Essex. Mr. Varenne. Croyde Bay, N. Devon. 

 Mr. Parfitt. Midland Counties. Mr. Purton. Cambridge. Rev. R. Relhan. 

 Oxford. Dr. Sibthorp. Bedfordshire. Rev. C. Abbot. Moreton and North Bovey. 

 Devon. Rev. J. P. Jones. Guestling, Sussex. Rev. E. M. Bloomfield. Edenbridge, 

 Bexley, Hythe, Canterbury, Kent. Mr. Holmes. Pontesford Hill ! Abdon ! 

 Shropshire ! Stannor Hill ! Herefordshire. 



Scotland : — Kinnoul Hill ! Birnam Hill, Callernish and Garynahine, Lewis ; 

 Stennis, Orkney. Dr. IAndsay. Isle of May, Firth of Forth. Mr. Sadler. 



Ireland: — Common. Mr. Carroll. Kylemore Castle ! Mr. Larbalestier. 



"Wales :— Between Corwen and Bala ! Borth ! Llyn Cwlyd ! Gtyn ! near 

 CapelCurig ; Eglwyseg rooks ! Craigforda ! Moel-y-Goifa 1 Goodwiok Bay ! near 

 Fishguard. Castel Dinas Bran ! Tenby ! Crib Cooh 1 



