CLADONIA.] CLADONIEI. ^ 143 



Cromb. Grevillca, xi. p, 112. — Claclonia pyxidnta l. ochrocTilora 

 a. ceratodes Mudd, Brit. Clad. p. 14. — Brit. Kvs. : Mudd, Clad. n. 23. 



This differs cliiefly in the form of the apices of the podetia, and appa- 

 rently never occurs with apothecia. 



Hab. On putrid trunks and turf-walls in shady upland districts. — Distr. 

 Apparently local and scarce in S.W. and N. England and amonfr the 

 Central Scottish Grampians. — B. M. : Beckey Falls, S, Devon ; near Bud- 

 min, Cornwall; Loundsdale, Cleveland, Yorkshire; Enuerdale, Cumber- 

 land. Rannoch, Perthshire ; Loch Liunhe, Inverness-shire. 



14. C. verticillata Flcirke, Clad. (1S23) p. 26.— Thallus foliaceo- 

 squamulose at the base ; leaflets few, small, laciniiform, creuato- 

 incised, dark-olive or greyish-green ; podetia corticate, glabrous, 

 elougato-turbiuate, scyphit'erous, glaucous- or brownish-green ; 

 scyphi regular, plane, denticulate at the margin, at length repeatedly 

 proliferous (2-4 times) from the somewhat elevated centre (K — , 

 CaCl — ). Apothecia moderate, brown or reddish. — Leight. Lich. Fl. 

 p. 63, ed. 3, p. 59. — Cladonia gracilis subsp. verticillata Cromb. Lich. 

 Brit. p. 19. Cladonia cervicomis ft. verticillata Mudd, Brit. Clad. 

 p. 5. C. gracilis ft. verticillata Mudd, Man. p. 54. Sciiphopliora 

 verticillata Gray, Nat. Arr. i, p. 418. Cladonia pyxidata var. verti- 

 cillata Hoffm. Deutsch. Fl. (1795) p. 122. Lichen pyxidatus ft. 

 pro parte, Huds. Fl. Angl. p. 552 ; With. Arr. ed. 3, iv. p. 36. 

 Lichenoides tuhulosum pyxidatum prolifennn Dill. Muse. 80. t. 14. 

 f. 6 D-H ; in Bay, Syii. ed. 3, 69. 2\).—Brit. Exs. -. Mudd, Clad. 

 n. 3. 



From C. gracilis, of which some make it a variety or subspecies, this is 

 distinguished by the scyphi being at length 2-4 times proliferous fi'om 

 the centre, the uppermost scyphus being shorter and narrower. It 

 approaches also C. verticillaris Mont., but is well separated by the basal 

 thallus. In this country it is rarely fertile. 



Hah. On mossy rocks and boidders in maritime and upland districts. — 

 Didr. Local and scarce in S., W., and X. England, very rare in Scotland 

 andin N. W. Ireland (Connemara, Galway), as also in the Channel Islands ; 

 though it is no doubt more generally distributed. — B. M. • Noirmont, Island 

 of Jersey. Broadwater Forest, Sussex ; St. Breock, Cornwall ; Delamere 

 Forest, Cheshii-e ; Ayton Moor and Eaysdale, Cleveland, Yorkshire ; 

 Swinhope Fell, Northumberland. Glen Lochay, Killin, Perthshire ; 

 Moor of Morrone, Braemar, Aberdeenshii'e. 



Form laciniolata Nyl. ex Cromb. GreviUea, xi. (1883) p. 112. — 

 Laciniae elongate and narrow at the base ; podetia "with the scyphi 

 laciniolose at the margins. 



This may be a distinct variety. It is a luxuriant plant, with the apo- 

 thecia numerous and dark brown. 



Hab. On exposed rocks in moist places in upland districts. — Distr. 

 Found only sparingly in S.W. England and the S.W. Highlands, Scot- 

 land. — B. M. : Cam Galva, near Penzance, Cornwall. Barcaldine, 

 Argyleshire. 



