CLADOXIA.] CLADOXIEI. 171 



N. England, but no doubt to be detected elsewhere. — B. M. : Kildale 

 Moor, Cleveland, Yorkshire. 



Form 2. carcata Xyl. Lich. Scaiid. (1861) p. 62.— Podetia 

 moderate, granulate-pulverulent and partly squamulose, simple or 

 subdivided at the apices ; apothecia solitary or conglomerate. — 

 Cromb. I.ich. Brit. p. 21 ; Leight. Lich. Fl. p. 70 pro parte, ed. 3, 

 p. 6-t pro parte (cfV. Cromb. Grevillea, xi. p. 1 1 5 ). — ? Cenomyce 

 carcnta Ach. Lich. L'niv. (1810) p. b^'6. 



The original specimen gathered in Enghmd by Turner liaving disap- 

 peared from lleib. Ach., at Helsingfors, it is very doubtful what Acharius 

 T'ally memt by his carcata, which in Syn. p. 2Gt) he refers to Cenomijce 

 bncillaris as a variety. If really referable to this latter, Xylander suggests 

 1/2 litt. that it may be the same as his var. sulcoronata. Probably, 

 however, it is nothing very typical, and if belonging to the present variety, 

 is only a simpler condition, and such as sometimes occurs in this country. 



Hah. On mossy boulders in wooded mountainous districts. — Dislv. 

 Very local and scarce (at least in its more characteri.^tic state) in 8.\\'. 

 and X. England and the Highlands, Scotland. — B. M. : Dartmoor, S. 

 Devon; Wark, Xorthumberland. Barcaldine, Argyleshire; Falls of 

 Bruar, Blair Atliole, Perthshire; Craig Cluny, Braemar, Aberdeenshire. 



Tar. c. ostreata Xyl. Lich. Par. (1855) n. 108. Syn. i. p. 225. 

 — Thallus with the basal squaraiiles ascending, subimbricate, 

 usually subrotundate, white-pulverulent at the margin and on the 

 under surface ; podetia small, wliite-pulverulent, the scvphi narrow. 

 Apothecia minute, very rare.— Cromb. Grevillea, xi. p. 115. — Cla- 

 donia diqitata var. macilenta f. ostreatiformis Leight. Lich. Fl. p. 70, 

 ed. 3, ^.'64.— Brit. Exs. : Mudd, Clad. n. 69; Leight. n. 371. 



Readily recognized by the basal squamules bearing a very considerable 

 resemblance to those of Lecidea ostreata, from which when sterile it i.s 

 distinguished by the different reaction with K. In our British specimens 

 the podetia are usually short, somewhat coruute at the apices, or when 

 l)etter developed narrowly scyphiferous. The apothecia are extremely 

 rare, though the spermogones are not unfrequent. 



Hob. On old mossy stumps of trees in upland wooded districts. — Di'^tr. 

 Found sparingly only here and there throughout England. — B. M. : 

 Epping Forest, Essex: Xew Forest. Hants ; Charuwood Forest, Leices- 

 tershire : Wrekin Hill, Shropshire ; Battersby, Cleveland, Yorkshire. 



36. C. bacillaris Xyl. ex Cromb. Linn. Soc. Journ., Bot. xvii. 

 (Io80) p. 55y. — Thallus minutely .squamulose at the base; squa- 

 mules incised and crenate, greyish-white above, white beneath ; 

 podetia slender, cylindrical, simple or shortly branched at the apices, 

 very rarely narrowly scyphiferous, greyish-white, granuloso-pulve- 

 rulent (K — , CaCl — ). Apothecia small, discrete or conduent. — 

 Cromb. Grevillea, xi. p. 115. — Cladonia Floerliana var. bacillarls 

 Leight. Ann. Mag. Xat. Hist. ser. 3, xviii. p. 417 pro parte; Lich. 

 Fl. p. 71, ed. 3, p. 65 pro parte. Cladonia Floerhinna var. hacillaris 

 Cromb. Lich. Brit. p. 2], Scypliophora bacillaris Gray, Arr. i. 

 p. 422 pro parte. BiTomiics bacillaris Ach. Meth. (1803) p. 329. 



