LECAJIOKA.] LICCANO-LKClDr.I:;!, 411 



88. L. allophana Nyl. Flora, lb72, \k 2.>(), not a 2.--Thallus 

 deterniiiKito, unequal, rufijosc or granulato-corrugate, wliitisli or 

 groyish-white (K + yellowish, CaCl — ). Apothecia moderate, plane or 

 slightly convex, brown or brownish-black ; the thallinc margin entire, 

 at length subcrcnatc and tlexuose ; paraphyscs slender, not discrete 

 at the apices ; epithecium continuous (not granulose) ; spores 0,01 3- 

 22 mm. long, 0,008-12 mm. thick ; hy menial gelatine bluish, the 

 thecffi violet-colonrcd with iodine. — Cromb. Grevillea, xviii. p. 08. — 

 L. suhfasca form (dlophana Cromb. Lich. lirit. ]). 51 ; Leight. Lich. 

 Fl. p. 200, ed. 3, p. 185. L. siih/nsca t}. nUoplwna Ach. Lich. Univ. 

 (1810) p. 395. Lichen suhfuscus Huds. Fl. Angl. p. 444 pro parte ; 

 Eng. Eot. t. 219. Lichenoides crustaceum et leprosum scutellis suh- 

 fuscis Dill, in Ray 8yn. ed. 3, p. 71 pro parte; Muse. 134, t. 18. 

 fig. 10. — Brit. Exs. : Leight. n. 110 pro parte ; Bohl. n. 35. 



At one time Nvlander, like some other authors, regarded this as the 

 iy^Q oi L. suhfusca. This is so far warranted also by its h^-m^ Lichen 

 stibfuscits Linn. (FI. Suec. 1755, p. 400) 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 signifii ation. It differs from 

 L. siibfwsca chiefly in the more rugose thallus, the form of the thalline 

 margiu of the apothecia, the more conglutinate paraphyses, the .-mailer 

 spores, and the size of the spermatia, which {Jide Nyl. in litt.) are 0,018- 

 24 mm. long. 



Hab. On trunks of trees from maritime to upLmd districts. — Di.sfr. 

 Not uncommon in England ; apparently rare in N. AN'ales, the S.W. 

 Highlands of Scotland, and S.W. Ireland ; probably often overlooked. — 

 B. M. : Bury St. Edmuud s, Suffolk ; Lyudhurst, New Forest, Hants : St. 

 Leonard's Forest, Sussex; Lustleigh, S. Devon; Windsor Great Park, 

 Berkshire; Twycross, Leicestershire; near AVorcester ; near Shrews- 

 hxwy, Shropshire ; Aberdovey, Merionethshire ; Ayton, Cleveland. York- 

 shire. Fiularig, Killiu, Perthshire ; Inverary, Argyleshire. Castle- 

 connell, co. Limerick. 



89. L. epibryon Ach. Syn. (1814) p. 155: Nyl. Flora, 1872, 

 p. 250. — Thallns 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-grannlose ; 

 spores 0,014—23 mm. long, 0,008-11 mm. thick : hymenial gelatine 

 bluish, the thee® at length dark-wine-red with iodine, — Cromb. 

 Grevillea, xviii. p. 68. — Lecanora siihfusca var. epihryon pro parte 

 Mudd, Man. p. 147; Cromb. Lich. Brit. p. 51; Leight. Lich. Fl. 

 p. 203, ed. 3, p. 187. Lichen epihryon Ach. Prodr. (1798) p. 79. 



Usually confounded by British authors with terricolous states of var. /3 

 of L. subfiisca. 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 speimogones visible have become 

 partially abraded. These elsewhere (Jide Nyl. m litt.) have the spermatia 

 0,015-18 mm. long. 



Hab. On decayed mosses on the ground in mid-alpine situations. — 



