170 LECANO-LECIDEEI [bUELLIA 



seen by Leighton, and those in the British Museum, including Larb. 

 Lich. Hb. n. 34, do not agree with the description of Tuckerman's 

 species ; they are mostly saxicolous forms of B. myriocarpa, but one 

 of the specimens is Biatorina lenticularis, the form of the paraphyses 

 in both these species being very similar. 



nab. On trees, palings and rooks. — Distr. Frequent throughout 

 the British Isles. — B. M. Lignieolous : Jersey ; Lustleigh, Devon ; 

 Lyndhiirst and near Menstrie, New Forest, Hants; St. Leonards, 

 Chiltington and Shermanbmy, Sussex ; Penshurst, Kent ; Bichmond 

 Park, Surrey ; Hammersmith and Hampstead Heath, Middlesex ; 

 Windsor Great Park, Berks ; near Cu-encester, Gloucestershire ; 

 Lewknor and Wheatfield, Oxfordshire; Highbeaoh, Epping Forest, 

 Walthamstow, Hockley "Woods, Ulting, Stansted, Mount Fitchet, 

 Broomfield and Hatford Peverel, Essex; Babraham and Gamlingay 

 (f. so^wqp/wZa) , Cambridgeshire; near Tuddenham, Suffolk; Thetford 

 Warren and near King's Lynn, Korfolk ; near Pixham Ferry, Wor- 

 cestershire ; Polesworth and Leamington, Warwickshire ; near Shrews- 

 bury, Battlefield, Church Stretton, Haughmond Hill and Newport, 

 Shropshire ; Ehnhurst, Staffordshire ; Twycross, Leicestershire ; Bar- 

 mouth and Dolgelly, Merioneth; Bettws-y-Coed, Carnarvonshire; 

 near Stokesley, Cleveland, Yorkshire ; Teesdale, Durham ; Orton, 

 Westmoreland ; Keswick and Ennerdale, Cumberland ; Trillin and 

 Aberfeldy, Perthshire ; Loch Lomond, Dumbartonshire ; Appin, 

 Argyll ; Mar Forest, Braemar and Countesswells, near Aberdeen ; 

 Applecross, Eossshire ; Eiverstown, Glanmhe and Blarney, Cork ; 

 Tore Mt., KiUamey; Ballynagarde, Limerick; Killaloe and Kilkee, 

 Clare ; near Belfast, Antrim. Saxicolous : Fliquet Bay and La Moye, 

 Jersey ; Lewes, Sussex ; Shiere, Surrey ; Goodwiok Bay, Pembroke- 

 shire; Chamwood Forest, Leicestershire; Hale End, Malvern, 

 Worcestershire ; Lyth Hill, Shropshire ; Cliffrigg, Cleveland, York- 

 shire ; Portlethen, Kincardineshire ; Countesswells Woods near Aber- 

 deen (on Bceomyces rufus) ; Inniscarra and KUcnlly, Cork ; Kilkee, 

 Clare; Mweelen, Kylemore, near Salrock and near Lough Feagh, 

 Connemara, Galway. 



Var. chloropolia Th. Fr. Lich. Scand. p. 595 (1874).— 

 Thallus thicker than in the species, greenish-grey, unequal, 

 granular. — Lecidea chloropolia Fr. Summa p. 115 (1846) nomen. 

 L. myriocarpa i. Moropolia Leight. Lich. FI. ed. 3, p. 319 (1879). 

 Lichen pinicola Sm. Engl. Bot. t. 1851 fig. 2 (1808). 



Exsicc. Larb. Lich. Hb. n. 31. 



Scarcely to be distinguished from some forms of the species. The 

 apothecia are somewhat larger, and are comparable to Leighton's 

 f. saprophila. 



Hah. On decorticated trunks and old palings. — Disir. Somewhat 

 rare in the Channel Islands, S., Central and N. England. — B. M. 

 Beaufort, Jersey ; near Bovey Tracey, Devon ; Lyndhurst, New 

 Forest ; Finchley, Middlesex ; Walthamstow, Essex ; near Cambridge. 



11. B. Schasreri De Not. in Giorn. Bot. Ital ii. p. 199 (1846). 

 — Thallus effuse, thin, whitish, minutely granular or pulverulent, 

 sometimes evanescent (K — , CaCl — ). Apothecia minute, black, 

 plane or subconvex, the margin thin, disappearing ; hypothecium 

 bro^^^lish or dark-brown ; paraphyses concrete dark-brown at the 



