168 TJCHEXACKI. [CLADONIA. 



forms. The apothecia are not very common in a rightly developed con- 

 dition. 



Hab. AmoDo- mosses on old trunlcs of trees and on the ground in 

 wooded upland districts. — Distr. General and not uncommon in most 

 parts of Great Britain, rare in the Channel Islands ; not seen from Ireland. 

 — B. M. : Island of Jersey. New Forest, Hants ; Lustleigh, Devonshire ; 

 near AVithiel, Cornwall ; Bradgate Park, Leicestershire ; Cromford Moor, 

 near Matlock, Derbyshire ; Cwm Bychan, Merionethshire ; Ajton and 



Braemar, Aberdeenshire ; Rothiemurchus Woods, Inverness-shire. 



Form 1. styracella Xyl. Lich. Scand. (1861) p. 62.— Thallus 

 foliolose at the base, the leaflets minute, thin, lobed, subimbricate 

 or somewhat scattered ; podetia simple, slender, subuliform, white- 

 pulverulent, the scyphi very minute with entire margin. Apothecia 

 not seen rightly developed. — Cromb. Grevillea, xi. p. 114. — Bceo- 

 myces baciUaris y. stymcellus Ach. Meth. (1803) p. 330. Cladonin 

 coceifera e. maeUeata f. subulata Mudd, Brit. Clad. p. 32. — Brit. 

 Exs. : Mudd, Clad. n. 74 ; Leight. n. 297. 



Differs chiefly in the thinly lobed basal folioles and in the %.va\\ r 

 podetia, which 'are attenuate upwards. The minute scyphi are rarely 

 present, and the apothecia occur only in a young state. 



Hab. On mossy trunks of old trees in mountainous districts. — Distr. 

 Local and rare in S., W., and N. England, more frequent among the 

 Scottish Grampians ; rare in the Channel Islands and in S.W. Ireland. — 

 B. M. : Island of Jersey. Withiel, Cornwall ; Lounsdale, Cleveland, 

 Yorkshire ; NessclifF, Shropshire. Barcaldine, Argyleshire ; Loch Tum- 

 mel, Perthshire; Piothiemurchus "Woods, Inveruess-shu-e. Turk Mt., 

 Killamey, co. Ken-y. 



Form 2. clavata Fr. Lich. Eur. (1831) p. 334. — Podetia thickish, 

 simple, subveutricose, cornute at the apices, white-pulvenilent. Apo- 

 thecia few, minute. — Cromb. Grevillea, xi. p. 114. — Subsp. Cladonia 

 macilenta f. clavata Leight. Lich. Fl. p. 70, ed. 3, p. 64. Bceomyces 

 deformi^ 13. davatiis Ach. Meth. (1803) p. 334. Cladonia coceifera 

 €. macilenta 1. monstrosa Mudd, Brit. Clad. p. 33. Lichen cornutus 

 (]. Liglitf. Fl. Scot. ii. p. 876. Coralloides vix ramosum scypTiis 

 ohscuris Dill. Muse. 90, t. 15. f. 14b, c. — Brit. Exs.: Mudd, Clad, 

 n. 79 ; Leight. n. 403. 



This form is as it were only a more turgid state of the preceding, with 

 which also it agTees in the length of the clavato-Nentricose podetia 

 (though these are sometimes tliick and stunted), which render it easily 

 distinguished. It is apparently everywhere extremely rare with rightly 

 developed apothecia. 



Hub. On the ground among mosses on heatlis and on the dead stumps 

 of ti-ees in wooded upland districts. — Distr. Found only in S.,'\V.,and N. 

 England, N. Wales, and among the Grampians, Scotland. — B. M. : New 

 Forest, Hants ; Long Mynd, Shropshire ; Aherdovey, Merionethshire ; 

 "NVesterdale, Cleveland, "Yorkshire ; near "Whitehaven, Cumberland. 

 Craig Calliach and Piannoch, Perthshire ; Mar Forest, Braemar, Aber- 

 deenshire ; Rothiemurchus, Inverness-shire. 



