CLADONIA.] CLADONIEI. 135 



gate, cylindrico-subulate or tubaeform, scypliiferous, very thinly 

 pulverulent, white or glaucous - white : scyphi with the margin 

 usually erect and crenate, regular or variously proliferous (K , 

 CaCl ). Apothecia brown, simple or confluent. Cromb. Lich. 

 Brit. p. 19; Grevillea, xi. p. 112. Oladonia pyxidata ft. fimbriata 

 Mudd, Man. p. 53, Brit. Clad. p. 9 ; Leight. Lich. Fl. p. 61, ed. 3, 

 p. 57. Scyphophorus fimbriatus Sm. Eng. Fl. v. p. 243 ; Gray, 

 Nat. Arr. i. p. 419. Cenomgce fimbriata Hook. Fl. Scot. ii. p. 62 ; 

 Tayl. in Mack. Fl. Hib. ii. p. 81. Lichen, fimbriatus Linn. Sp. PI. 

 (1753) p. 1152; Huds. Fl. Angl. p. 456; Lightf. Fl. Scot. ii. 

 p. 870 ; With. Arr. ed. 3, iv. p. 37 ; Eng. Bot. t. 2438. Coralloides 

 scypliiforme gracile, marginibus serratis Dill. Muse. 84, t. 14. f. 8, 

 et Coralloides scypliiforme, tubercidis fuscis, p. 79, t. 3 4. f . 6 A, B. 

 Lichenoides tubulosum proliferum, marginibus serratis Dill, in Hay, 

 Syn. ed. 3, 69. 30. Brit. Kvs. : Leight. nos. 325, 376, 377 ; Mudd, 

 n. 1, Clad. nos. 14, 15, 17, 18 ; Bohl. n. 24. 



From C. pyxidata, to which it is allied, this differs in the podetia being 

 whitish-pulverulent, often more extended, with narrower scyphi. In 

 these respects it is constant, and may with propriety be regarded as speci- 

 fically- distinct. It is a very variable plant in the characters of the 

 podetia. Sometimes they become denudate, and in this case are often 

 longitudinally ribbed (form costata Florke, Mudd, Brit. Clad. p. 11 ; 

 Leight. Lich. Fl. ed. 3, p. 58) ; and at other times they are once or twice 

 proliferous (form prolifera Ach., Mudd, /. c.). The scyphi also are occa- 

 sionally unequally denticulate at the margins (form ilenticulata Florke, 

 Mudd, Man. p. 64, Brit. Clad. p. 10), and more rarely are cyathiform, 

 with the margin squamulose (ptcrygota Florke, Mudd, Brit. Clad, 

 p. 11). These, however, are mere states of the type resulting from the 

 nature of the habitat, and more than one of them may at times be seen 

 on the same specimen. In this country the apothecia are rarely well 

 developed. 



Hub. On the ground, roots of trees, and among mosses on old walls in 

 maritime, lowland, and upland districts. Distr. General and common in 

 Great Britain and Ireland, though seen but from comparatively few 

 localities, the more typical condition being rarer. B. M. : Epping Forest, 

 Essex ; Dorking, Surrey ; New Forest, Hants ; Truro, Cornwall ; New- 

 market Heath, Cambridgeshire ; near Chipping Norton, Oxfordshire ; 

 Barmouth, Merionethshire ; Aber, Carnarvonshire ; Over, Cheshire ; 

 Ayton and Bilsdale, Cleveland, Yorkshire ; Windermere, Westmore- 

 land. New Galloway, Kirkcudbrightshire ; Royal Botanic Gardens and 

 Braid Hills, Edinburgh ; Barcaldine and Appin, Argyleshire ; Killin and 

 Blair Athole, Perthshire ; Countesswells Wood, near Aberdeen ; Castle- 

 toii of Braemar, Aberdeenshire ; Rothiemurchus, Inverness-shire ; Lairg, 

 Sutherlandshire. Kylemore, co. Galway. 



Var. ft. conista Nyl. Lich. Scand. (1861) p. 51. Podetia short, 

 subturbinate, pulverulent, greenish-grey ; scyphi simple, the margin 

 subentire. Cromb. Grevillea, xi. p. 112. Cladonia pyvidata y. 

 fimbriata b. conista Mudd, Brit. Clad. p. 10. Scyphophora conista 

 Gray, Nat. Arr. i. p. 421. Cenomyce fimbriata ft. conista Ach. Syn. 

 (1814) p. 2o7.J3rit. Exs. : Mudd, Clad. n. 13. 



Differs in the size and form of the podetia, and in their simple (never 



