CLABONIA..] CLADON1EI. 157 



Well distinguished by the minutely foliaceo-squaraulose podetia (which 

 in old age become subdenudate) and b} T their perforate axils with dentate 

 or sublacerate margins. The podetia vary in height from 1 to 3 inches, 

 and are slender or somewhat turgid, simple or repeatedly branched. It 

 is not very common in fruit, but when present the apothecia are cymoso- 

 aggregate, at first plane and margined, at length convex and immarginate. 



Hal). Among mosses on the ground and on rocks in wooded, maritime, 

 and upland tracts. Distr. General, and usually plentiful where it occurs, 

 chiefly in the hilly and mountainous regions of Great Britain and Ireland; 

 rare in the Channel Island*. B. M. : Noirmont Bay, Island of Jersey. 

 Epping Forest, Essex ; near Beckey Falls, Devonshire ; St. Breock, Corn- 

 wall ; Charnwood Forest, Leicestershire ; Dolgelly, Merionethshire ; 

 Conway Falls, Carnarvonshire ; Hafod, Cardiganshire ; Ingleby Park, 

 Cleveland, Yorkshire ; Windermere, Westmoreland ; West Allen Carrs, 

 Northumberland. New Galloway, Kirkcudbrightshire ; Barcaldine, Ar- 

 gyleshire; Bracklin Bridge, Rannoch, and Loch Tay, Perthshire ; Durris, 

 Kincardineshire ; Craig Cluny, Braemar, Aberdeenshire ; Rothiemurchus 

 Woods and Loch Linnhe, Inverness-shire. Black Mountain, near Belfast, 

 co. Antrim ; Doneraile Mts., co. Cork ; Killarney, co. Kerry ; Kylemore, 

 co. Gal way. 



Form 1. ventricosa Fr.Lich.Eur. (1831) p. 231. Podetia stout, 

 subvontricose, the axils and apices dilated, open, infundibuliform. 

 Mudd, Man. p. 56, Brit. Clad. p. 19 ; Cromb. Grevillea, xi. p. 114. 

 Bwmyces sparassus ft. ventricosus Ach. Meth. (1803) p. 347. 

 Lichen ventricosus Huds., as will subsequently be seen, is not, as 

 supposed by authors, referable to this form. Brit. Exs. : Mudd, 

 Clad. n. 40. 



Probably this is to be regarded as but a more robust state of the type 

 (with which it is sometimes confluent) depending upon the nature of the 

 habitat. The podetia are much branched, with the branches often as if 

 scypliii'orm. It is but sparingly seen fertile. 



Hub. Among mosses on moist rocks in wooded upland districts. 

 Distr. Local and scarce in N. Wales, N. England, and the S.W. High- 

 lands of Scotland. B. M. : Conway Falls, Carnarvonshire; Aberdovev, 

 Merionethshire ; Westerdale, Cleveland, Yorkshire. New Galloway, 

 Kirkcudbrightshire ; Barcaldine, Argyleshire. 



Form 2. cucullata Nyl. ex Cromb. Journ. Bot. 1876, p. 360. 

 Tballus with the squamules at the base and on the podetia minute, 

 narrowly laciniate, crenulate and cucullato-revolute. Cromb. Journ. 

 Linn. Soc., Bot. xvii. p. 558 ; Leight. Lich. Fl. ed. 3, p. 21. Ceno- 

 nnjce cucullata Del. in Dub. Bot. Gall. ii. (1830) p. 626. Cladonia 

 squamosa ft. rnicrophyUa Mudd, Man. p. 56. Coralloides scyphi- 

 forme foliis alcicorniformibus cartUayinosis Dill. Muse. 87, t. 14. 

 f. 12 D.Brit. Exs. : Mudd, n. 14, Clad. nos. 33, 50. 



Differs in the form of the smaller squamules, which give it a. rather 

 fine appearance. In the British specimens the podetia are usually short 

 and sterile, rarely more elongate and fertile. 



Hub. On mossy boulders and putrid trunks in wooded upland districts. 

 Distr. Local and rare in W. and N. England, N. Wales, S. Scotland, 

 the W. Highlands, and N.W. Ireland.-B. M.: Near Withiel, Cornwall ; 



