110 LICHENACEI. [b^OMYCES. 



t. 373. Bceomyces hyssoides Mudd, Man. p, 63. Lichen fungiformis 

 With. Arr. ed. 3, iv. p. 1 4, pro parte. Coralloides funrjiforme saxatile, 

 pallide fuscum Dill. Muse. 78, t. 14. f. 4. Lichenoides funrjiforme 

 terrestre, capitidis fuscis Dill, in Ray Syn. ed. 3, 70. 39. — Brit. 

 Eai-s.: Leight. n. ifS ; Mudd, n. 30; Larb. Caesar, n. 6; Cromb. 

 n. 12; Larb. Lich. Hb. n. 43. 



Usually spreads very extensively, though often suhdeterminate. It 

 varies somewhat in thickness, being either moderate and granulose, or 

 thinnish and almost leprose, and also in colour from greenish-white to 

 dark-greyish, according to substratum and exposure. These minor and 

 accidental differences gave rise to the enumeration of supposed species, 

 none of which, however, can rank even as forms. The apothecia are 

 usually very numerous, simple, or conglomerate, with the stipes occa- 

 sionally branched, and when dry sulcato-corrugate. 



Hub. On sandy and gravelly soil, occasionally on rocks and stones, 

 rarelv on rotten wood, in shady upland situations. — Distr. General and 

 common in most parts of Great Britain, Ireland, and the Channel Islands, 

 but chiefly in hilly and mountainous tracts.— B. M. : Rozel, Island of 

 Jersey ; Island of Sark. Epping Forest, Essex ; Hornsey "Wood, Mid- 

 dlesex ; Leith Hill, Surrey ; Ightham Common, Kent ; Lyndhurst, New 

 Forest, Hants ; Isle of "Wight ; near South Brent, Devonshire ; Penzance, 

 Withiel and near Bocconoc, Cornwall ; Ampthill, Bedfordshire ; Mal- 

 vern, "Worcestershire ; Charnwood Forest, Leicestershire ; Bishop's Castle, 

 Shropshii-e ; "V\'elshpool, Montgomeryshire ; Barmouth and Dolgelly, 

 Merionethshire ; Island of Anglesea ; Ayton, Cleveland, Yorkshire ; 

 Eglestone, Durham ; Keswick, Cumberland ; Grayrigg Forest^, "V^'est- 

 moreland ; Hexham, Northumberland ; Ashby, Cumberland. New Gal- 

 loway, Kirkcudbrightshire ; Leadhills, Lanarkshire ; Pentlaud Hills, 

 near "Edinburgh ; Ashburn, Gourock, Renfrewshire; Craig Calliach, Ben 

 Lawers, and Blair Athole, Perthshire ; Sidlaw Hills, Forfarshire ; near 

 Portlethen, Kincardineshire; Glen Callater, Braemar, Aberdeenshire. 

 Mangerton and Killarney, co. Kerry; Connemara, co. Galway. 



Yar. /3. su"bsquanmlosus Nyl. Flora, 1877, p. 463.— Thallus 

 determinate, granuloso-squamulose in the centre, squamulose at the 

 circumference. Apothecia sessile, minute, simple or conglomerate, 

 dark-brown. — Cromb. Grevillea, xv. p. 15. — Bceomyces rnfus ff. ses- 

 silis et carneus Cromb. Licb. Brit. p. 16. Var. carneus Leight. Lich. 

 Fl. p. 53, et f. sessilis, ed. 3, p. 51. Bceomyces Ugnorum Gray, Nat. 

 Arr. i. p. 413 pro parte. — Brit. Exs. : Larb. Caesar, n. 7 ; Cromb. 

 n. 116. 



Distingidshed by the more squamulose thallus and smaller apothecia. 

 It is subsimilar to B. carneus Flork., which does not occur in our Islands, 

 and which, though generally regarded as a var. of B. riifus, is a distinct 

 species. In B. carneus the thallus is squamulose, with the squamules 

 contiguous, iuciso-crenate, the podetia distinctly, though shortly stipitate, 

 and the thalline reaction K -A yellow, and then immediately saffron-red 

 (vide Nyl. Flora, 1877, p. 462). In this varietv the thallus is usually 

 orbicular and moderate in size, with the apothecia minute and scattered, 

 though two or three often become conglomerate, and in a dry state 

 entirely sessile. 



Hab. On sandy and peaty soil, rarely on putrid wocd, in exposed mari- 



