CLADONIA.] CLADONIEI. 131 



often also pulverulent at the margins. It is not uncommon in a fertile 

 condition, the apothecia being often confluent. 



Hah. Among mosses on the ground and old walls in maritime and 

 upland districts. — Dtstr. Gener.al and common in Great Britain, and 

 probably also in Ireland, though no specimens have been seen ; rare in the 

 Channel Islands. — 13. M. : Island of Guernsey. Wootton Common, Nor- 

 folk; Epping Forest, Essex; Chislehurst, Kent; Leith Hill, Surrey; 

 Lustleigh Cleeve, Dartmoor, Devonshire; near Penzance and Ilehninton, 

 Cornwall ; Adderbury Church, Oxfordshire ; Hale End, Malvern, ^\'or- 

 cestershire ; Shrewsbury, Shropshire ; Aberdovey and Dolgelly, Merioneth- 

 shire ; Ayton, Newton, and KikLde Moors, Cleveland, Yorkshire ; Mor- 

 peth, Northumberland. New Galloway, Kirkcudbrightshire ; Pentland 

 Hills, Edinburgh ; Appin, Argyllshire ; Raunoch and ]51air Athole, 

 Perthshire ; Durris, Kincardineshire ; Countesswells, near Aberdeen, and 

 Castleton of Braemar, Aberdeenshire ; Loch Linnhe, Inverness-shire ; 

 Lairg, Sutherlaudshire. 



Form 1. lepidophora Plorke, Clad. (1828) p. 70.— Podetia 

 densely covered with minute, crowded, inciso-crenate, glaucous-grey 

 squamules.- — Cromb. Grcvillea, xi. p. 111. — Cladonia j^yxidata (3. 

 chlorophcea c. i)hijlloj;>liora (WaUi'.) Mudd, Brit. Clad. p. 9. 



This form seems quite distinct from the type, but the younger podetia 

 are as in it granulato-pulvernlent. Its distinctive character no doubt 

 depends upon age and the nature of the habitat ; in the type itself podetia 

 sometimes occiu" bearing a few scattered squamules. In the few speci- 

 mens seen the apothecia are not numerous. 



Hah. On old brick walls and thatched roofs in lowland districts. — 

 Dktr. Probably general, though seen only from Central and W. England, 

 N. Wales, and N.E. Scotland. — B. M. : Lechlade, Oxfordshire ; near 

 Cirencester, Gloucestershire ; Conway, Cai-narvonshire. Kinnordy, For- 

 farshire ; Cults, near Aberdeen. 



Form 2. myriocarpa Cromb. GreviUea, si. (1883) p. 111. — 

 Podetia somewhat short, subturbinate ; sejphi subdilated, proli- 

 ferous from the margins, the prolifications narrow, multifid. Apo- 

 thecia sessile, small, aggregato-confluent. — Cladonia pyccidata var. 

 Jimhriata f.myriocarjxi Cocm. Clad. Belg. (1863) n. 53; Mudd, Brit. 

 Clad. p. 10. — Brit. Exs. : Larb. Csesar. n. 58. 



A well-marked form, referred to C.fmh-iata by Coemans,but belonging 

 to this variety of C. injxidafa, from which it is distinguished by the pro- 

 lifications of the scyphi. The apothecia in well-fruited specimens are 

 very numerous and crowded, from pale-brown becoming reddish-brown. 



Hah. On the ground and on wall-tops in maritime and upland situa- 

 tions. — Distr. Local and scarce in the Channel Islands, W. England 

 S. Scotland, and the S. and N. Grampians. — B. M. : St. Ouen's Bay, 

 Island of Jersey. Ozleworth Park, Gloucestershire ; Malvern and Bewd- 

 ley, Worcestershire. Castle Douglas, Kirkcudbrightshire; Achmore, 

 Killin, Perthshire ; Glen Cluny, Braemar, Aberdeenshire. 



5. C. leptophylla Flcirke, Comm. Clad. (1828) p. 19.— Thallus 

 squamulose at the base, pale-greenish; squamules small, scattered, 



k2 



