454 LICHENACEI. [LECANORA. 



148. L. nitens Ach. Syn. (1814) p. 335; Nyl. Flora, 1869, 

 p. 298. Thallus indeterminate, thickish, subsquamulose, badiotis- 

 brown, shining (K. , CaCl ); hypothallus black, little visible. 

 Apothecia moderate, appressed, plane, brownisb-black, the thalline 

 margin entire, paler ; spores oblong, 0,009-0,018 mm. long, 0,0035- 

 45 mm. thick. Cromb. Journ. Bot. 1882, p. 274. Patellaria 

 nitens Pers. Ann. Wetter, ges. Nat. xi. (1810) p. 12. 



Intimately related to L. badia, from which it differs chiefly in the form 

 and size of the spores, whence Nylander /. c, is inclined to regard it as 

 specifically distinct. The specimens gathered are well fertile, with the 

 apothecia numerous, crowded, at times 2-3 confluent. As previously 

 observed (p. 85), it is one of the hosts of Sphinctrina kylemoriensis. 



Hub. On schistose rocks in a maritime district. Distr. Very local, 

 though plentiful where it occurred in one of the Channel Islands. B. M. : 

 Chateau Point, Island of Sark. 



149. L. torqnata Nyl. Act. Soc. Linn. Bord. ser. 3, t. i. (1856) 

 p. 338. Thallus continuous, smooth, rimoso-diffract, pale-murine 

 or fumose (K ); hypothallus black, limiting the thallus. Apothe- 

 cia submoderate, sessile, brownish-black ; the thalline margin pale, 

 persistent entire, or flexuose ; spores narrowly ellipsoid, 0,005-7 

 mm. long, 0,003-5 mm. thick. Cromb. Journ. Bot. 1874, p. 147; 

 Leight. Lich. PL ed. 3, p. 200. Parmelia torquata Fr. PL Horn. 

 (1825) p. 284. 



In general appearance suhsimilar to Lecidea kockictna, hut separated by 

 the lecanorine apothecia. These, according to Fries (Lich. Europ. p. 147), 

 are at times obsoletely pruinose, a character not apparent in the two 

 British specimens seen. 



Hob. On moist rocks in a maritime district. Distr. Only very spar- 

 ingly in the Channel Islands. B. M. : Island of Alderney. 



I. Apothecia lecanorine : spores 8nae, pluriseptate, colourless. 

 Spermogones with simple sterigmata and arcuate spermatia. 

 (Hcematomma Mass. Bich. (1852) p. 32.) 



150. L. coccinea Cromb. Grevillea, xviii. (1890) p. 70. Thallus 

 effuse, thinnish or moderate, farinose or leprose, sulphur-coloured 

 or white-yellowish (K-|- yellow) ; hypothallus fibrillose, white. 

 Apothecia innate or subsessile, moderate, plane or somewhat con- 

 vex, crimson (K + violet-purplish ); the thalline margin whitish- 

 pulverulent, often little conspicuous ; spores elongato-fusiform, 

 3-7-septate, 0,030-60 mm. long, 0,005-7 mm. thick, paraphyses 

 not discrete; hymenial gelatine deep blue with iodine. Lichen 

 coccineus Dicks. Crypt, fasc. i. (1785) p. 8, t. 2. f . 1 ; With. Arr. 

 ed. 3, iv. p. 16 ; Eng. Bot. t. 223. Hcematomma cocciimim Mudd, 

 Man. p. 157. Lichen licematomma Ehrh. Hanov. Mag. 1786, 

 p. 285 ; Eng. Bot. t. 486. Lecanora Jicematomma Hook. Fl. Scot. 



