LECANORA. ] LECANO-LECIDEEI, 41 
88. L. allophana Nyl. Flora, 1872, p. 250, nota 2.-—Thallus 
determinate, unequal, rugose or granulato-corrugate, whitish or 
greyish-white (K + yellowish, CaCl—). Apothecia moderate, plane or 
slightly convex, brown or brownish-black ; the thalline margin entire, 
at length subcrenate and flexuose; paraphyses slender, not discrete 
at the apices ; epithecium continuous (not granulose) ; spores 0,013- 
22 mm. long, 0,008-12 mm. thick ; hymenial gelatine bluish, the 
thecee violet-coloured with iodine.—Cromb. Crevillea, xviii. p. 68.— 
L. subfusca form allophana Cromb. Lich. Brit. p. 51; Leight. Lich. 
Fl. p. 200, ed. 3, p.185. ZL. subfusca n. allophana Ach. Lich. Univ. 
(1810) p. 895. Lichen subfuscus Huds. Fl. Angl. p. 444 pro parte; 
Eng. Bot. t. 219. Liehenoides crustaceum et leprosum scutellis sub- 
fuscis Dill. in Ray Syn. ed. 3, p. 71 pro parte; Muse. 134, t. 18. 
fig. 16.— Brit. Evs.: Leight. n. 116 pro parte ; Bohl. n. 35. 
At one time Nylander, like some other authors, regarded this as the 
type of Z. subfusca. This is so far warranted also by its being Lichen 
subfuscus Linn. (Fl. Suec. 1755, p. 409) pro maxima parte, according to 
specimens in his own herbarium; but it is better to adopt the nomen- 
-clature of Acharius as having a definite signification. It differs from 
L. subfusca chiefly in the more rugose thallus, the form of the thalline 
margin of the apothecia, the more conglutinate paraphyses, the smaller 
spores, and the size of the spermatia, which (fide Nyl. in ditt.) are 0,018- 
24 mm. long. 
Hab. On trunks of trees from maritime to upland districts.—Distr. 
Not uncommon in England; apparently rare in N. Wales, the S.W. 
Highlands of Scotland, and 8.W. Ireland ; probably often overlooked.— 
B.M.: Bury St. Edmunds, Suffolk; Lyndhurst, New Forest, Hants; St. 
Leonard’s Forest, Sussex; Lustleigh, 8. Devon; Windsor Great Park, 
Berkshire ; Twycross, Leicestershire; near Worcester; near Shrews- 
bury, Shropshire; Aberdovey, Merionethshire; Ayton, Cleveland, York- 
shire. Finlarig, Killin, Perthshire; Inverary, Argyleshire. Castle- 
connell, co. Limerick. 
89. L. epibryon Ach. Syn. (1814) p. 155; Nyl. Flora, 1872, 
. 250.—Thallus subdeterminate, verruculose or granuloso-con- 
crescent, white (K+ yellowish, CaCl—). Apothecia somewhat large, 
plane, brown-or reddish-brown ; the thalline margin thin, entire, 
often flexuose; paraphyses slender; epithecium non-granulose; 
spores 0,014-23 mm. long, 0,008-11 mm. thick; hymenial gelatine 
bluish, the thece at length dark-wine-red with iodine—Cromb. 
Grevillea, xviii. p. 68.—Lecanora subfusca var. epibryon pro parte 
Mudd, Man. p. 147; Cromb. Lich. Brit. p. 51; Leight. Lich. Fl. 
p. 203, ed. 3, p. 187. Lichen epibryon Ach. Prodr. (1798) p. 79. 
Usually confounded by British authors with terricolous states of var. 8 
of L. subfusca. It is, however, a plant of a more alpine type, and is well 
characterized by the much larger apothecia and spores. The only British 
specimen is well fertile; but the few spermogones visible have become 
partially abraded. These elsewhere (fide Nyl. in itt.) have the spermatia 
0,015-18 mm. long. 
Hab. On decayed mosses on the ground in mid-alpine situations.— 
