138 LTCHENACET. [CLADONIA. 



cerate. Apothecia not seen. Cladonia pyxidata y. Jtmbriata k. 

 abortiva Mudd, Brit. Clad. p. 11. Scypliophora Jtmbriata y. abortiva 

 Gray, Nat. Arr. i. p. 420. Gapitularia pyxidata /3. longipes B. 

 abortiva Florke in Web. et Mohr, Beitr. ii. (1810) p. 294. 



Seems to be only a form of this subspecies, next to which it was 

 placed by Acharius, Syn. p. 255. It is distinguished chiefly by the apices 

 of the podetia and by being always sterile. In the British 'specimens the 

 scyphi are not well developed, and only a few spermogones are visible. 



Hob. On semiputrid stumps in upland districts. Distr. Local and 

 scarce in N. England and the S.W. Highlands, Scotland. B. M. : Near 

 Ayton, Cleveland, Yorkshire. Barcaldine, Argyleshire. 



Var. /3. snbcornuta Nyl. ex Cromb. Grevillea, xi. (1883) p. 112. 

 Podetia elongate, simple or sparingly branched above, white- 

 pulverulent, subulate and more or less cornute at the apices. Cla- 

 donia fimbriata subsp. subcornuta Nyl. in Flora, 1874, p. 318. Cla- 

 donia pyxidata fl.firnbriataA. cornuta Mudd, Man. p. 53; Brit. Clad. 

 p. 12. Scyplioplwra fimbriata rj. cornuta Gray, Nat. Arr. i. p. 420. 

 Lichen cornutus Ligbtf. Fl. Scot. ii. p. 876 3 Eng. Bot. t. 1836. 

 Coralloides vix ramosum, scypliis obscuris Dill. Muse. 90, t. 15. 

 f. 14 D, v.J3rit. Exs. : Mudd, Clad. nos. 19, 20, 21 ; Bohl. n. 48. 



Distinguished from C.fibula\>y the form of the apices of the ascyphous 

 podetia. In this it closely resembles states of C. cornuta, with which it 

 has often been confounded, but is distinguished by the podetia being 

 pulverulent throughout. Only spermogones are present in our specimens. 



Hob. On the ground among mosses in upland districts. Distr. Appa- 

 rently not very common in Great Britain and Ireland. B. M. : Epping 

 Forest, Essex ; Ayton and Baysdale, Cleveland, Yorkshire ; Teesdale, 

 Durham. Leadhills, Lanarkshire; Killin, Perthshire; Countesswells, 

 near Aberdeen ; Kinnordy Moss, Forfarshire ; Morrone, Braemar, Aber- 

 deensh'ire. Near Cork ; Blaris Bridge, Belfast, co. Antrim ; Kylemore, 

 co. Galway. 



Form 1. nemoxyna Nyl. ex Cromb. Grevillea, xi. p. 112. Podetia 

 slender, branched; branches divided, subuliform. Apotbecia not 

 seen. Cladonia pyxidata e. cornuta 1. nemoxyna Mudd, Brit. Clad. 

 p. 13. Scyplioplwra Jimbria ta . nemoxyna Gray, Nat. Arr. i. p. 420. 

 Eaomyees radiatus ft. nemoxynus Ach. Metb. (1803) p. 342. Coral- 

 loides scypliiforme cornutum Dill. Muse. 92, t. 15. f . 16 B, D, E. 



Differs in the subuliformi-branched podetia, with the branches usually 

 of unequal length. It occurs only spermogoniiferous. 



Hob. On the ground among heaths in upland tracts. Distr. Local and 

 scarce in E. and N. England and among the S. Grampians, Scotland ; 

 probably to be detected elsewhere. B. M. : Epping Forest, Essex ; 

 Ayton Moor, Cleveland, Yorkshire. Killin, Perthshire. 



Form 2. tortuosa Nyl. ex Cromb. Grevillea, xi. (1883) p. 112. 

 Podetia somewhat stout, flexuose, divaricately branched ; branches 

 short, subulate, or thickened and obtuse at the apices. Cladonia 



