CLADONIA. | CLADONIEI. 17) 
N. England, but no doubt to be detected elsewhere.—B. M.: Kildale 
Moor, Cleveland, Yorkshire. 
Form 2. carcata Nyl. Lich. Scand. (1861) p. 62.—Podetia 
moderate, granulato-pulverulent and partly squamulose, simple or 
subdivided at the apices; apothecia solitary or conglomerate.— 
Cromb. Tich. Brit. p. 21; Leight. Lich. Fl. p. 70 pro ‘parte, ed. 3, 
p. 64 pro parte (¢fr. Cromb. Grevillea, xi. p. 115).—? Cenomyce 
earcata Ach. Lich. Univ. (1810) p. 568. 
The original specimen gathered in England by Turner having disap- 
peared from Herb, Ach., at Helsingfors, it is very doubtful what Acharius 
really meant by his carcata, which in Syn. p. 266 he refers to Cenomyce 
bacillaris as a vaviety. If really referable to this latter, Nylander suggests 
in litt. that it may be the same as his var. subcoronata. 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. 
Hab. On mossy boulders in wooded mountainous districts.—Distr. 
Very local and scarce (at least in its more characteristic state) in S.W. 
and N. England and the Highlands, Scotland.—B. M.: Dartmoor, 8. 
Devon; Wark, Northumberland. Barcaldine, Argyleshire; Falls of 
Bruar, Blair Athole, Perthshire; Craig Cluny, Braemar, Aberdeenshire. 
Var. 5. ostreata Nyl. Lich. Par. (1855) n. 108, Syn. i. p. 225. 
—Thallus with the basal squamules ascending, subimbricate, 
usually. subrotundate, white-pulverulent at the margin and on the 
under surface; podetia small, white-pulverulent, the scyphi narrow. 
Apothecia minute, very rare.—Cromb. Grevillea, xi. p. 115.—Cla- 
donia digitata var. macilenta {. ostreatiformis Leight. Lich. Fl. p. 70, 
ed. 3, p. 64.— Brit. Exvs.: 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 is 
distinguished by the different reaction with K. In our British specimens 
the podetia are usually short, somewhat cornute at the apices, or when 
better developed narrowly scyphiferous. The apothecia are extremely 
rare, though the spermogones are not unfrequent. 
Hab. On old mossy stumps of trees in upland wooded districts.— Distr. 
Found sparingly only here and there throughout England.—B. M.: 
Epping Forest, Essex ; New Forest, Hants; Charnwood Forest, Leices- 
tershire ; Wrekin Hill, Shropshire ; Battersby, Cleveland, Yorkshire. 
36. C. bacillaris Nyl. ew Cromb. Linn. Soc. Journ., Bot. xvii. 
(1880) p. 559.—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 confluent.— 
Cromb. Grevillea, xi. p. 115.—Cladonia Floerkiana var. bacillaris 
Leight. Ann. Mag. Nat. Hist. ser. 3, xviii. p. 417 pro parte; Lich. 
Fl. p. 71, ed. 3, p. 65 pro parte. Cladonia Floerkiana var. bacillaris 
Cromb. Lich. Brit. p. 21. Scyphophora bacillaris Gray, Art. i. 
p. 422 pro parte. Bewomyces bacillaris Ach. Meth. (1803) p. 329. 
