130 LICHENACEI. [CLADONIA. 



distinguisli this form. In tlie British specimens the apothecia are very 

 sparingly present, though the spermogones are not uncommon. 



Hah. On the gi'ound in maritime and upland districts. — Diatr. Local 

 and scarce in S.VV. England and the Highlands of Scotland; probably 

 overlooked. — B. M. : St. Breock, Cornwall. Barcaldine, Ai'gyleshire ; 

 Rauuoch, Perthshire. 



Form 2. epiphylla Xyl. Lich. Scand. (18G1) p. 50.— Podetia ex- 

 tremely short or wanting. Apothecia subsessile on the basal squa- 

 mules, conglomerate. — Cromb. Lich. Brit. p. 18 ; Grevillea, xi. 

 p. 111. — CJadonia pijxidata /3. cJtlorophcea g. epiphylla Mudd, Brit. 

 Clad. p. 9. Liclien epiphyllus Ach, Prodr. (1798) p. 185. 



This distinct form, or probably variety, is characterized by the podetia 

 being abortive or nearly so, and by the apothecia being consequently 

 more or less sessile on the basal thallus. A single British specimen has 

 been seen ; it has a few very minute, scattered podetia. 



Hah. On the ground in upland tracts. — Distr. Extremely local and 

 scarce in E. England ; not recently found. — B. ]\J. : Epping Forest, Essex. 



Yar. fj. pocillnm Fr. Sum. Yeg. (1845) p. 110. — Squamules at 

 the base somewhat large, firm, usuaEy appressed, subimbricate, 

 pale-greyish ; podetia short, turbinato-scyphiferous, corticate, gra- 

 nulato-verrueose. Apothecia small, dark-brown. — Mudd, Man. 

 p. 53 ; Brit. Clad. p. 7; Cromb. Lich. Brit. p. 18; Grevillea, xi. 

 p. 111.— Bceomyces Pocillum Ach. Meth. (1803) p. 336, t. 8. f. 6. 



In this variety the basal thallus, which is occasionally orbicular, is as if 

 crustaceo-appressed to the substratum, and is sometimes of a cervine or 

 lurid-cervine colour (form cervina Nyl. S^^l. p. 193). The podetia are 

 more or less scattered, and the apothecia, rare in our specimens, are mar- 

 ginal on the scyphi. 



Hah. On sterile soil on baulvs and heaths in maritime and upland 

 tracts. — iJistr. Probably general and common, though seen only from 

 comparatively few localities in England, Scotland, and the Channel 

 Islands. — B. M. : The Yale, Island of Guernsey. Near Bodmin, Corn- 

 wall ; Bathampton Downs, Somersetshire ; Charnwood Forest, Leicester- 

 shire; Barmouth, Is. Wales; Eedcar, Cleveland, Yorkshire. Tongland, 

 Kirkcudbrightshire; Killin and Rannoch, Perthshire; Burns, Kincar- 

 dineshire; Coimtesswells and Castletou of Braemar, Aberdeenshire ; Glen 

 Nevis, Inverness-shire. 



Yar. y. chlorophsea Florke, Clad. (1828) p. 70. — Squamules at 

 the base somewhat small ; podetia elongato-turbinate, greenish or 

 sulphur-coloured, granulato-pulverulent, scyphiferous ; scyphi usually 

 narrow, simple or variously proliferous. — Mudd, Clad. p. 8 ; Leight. 

 Lich. Fl. p. 60, ed. 3, p. 57 ; Cromb. Grevillea, xi. p. 111. — Ceno- 

 myce cliloropliaa Florke in Somm. Suppl. Lapp. (1826) p. 130. — BHt. 

 Exs.: Mudd, Clad. nos. 7-11; Leight. n. 399; Larb. Lich. Hb. 

 n. 206. 



Characterized by the granulato-pulverulent podetia, in which it ap- 

 proaches C. Jimhiata. When less developed the basal squamules are 



