PELTIGERA.] PELTIGEREI. 287 



1. P. malacea Fr. Lich. Eur. (1831) p. 44. Thallus moderate, 

 smooth, opaque, thickish, usually very minutely punctato-tomen- 

 tellose, or obsoletely adsperso-pulverulent, livid-brown when moist, 

 greyish-glaucous or glaucous-brown, or partly brownish when dry ; 

 beneath densely tomentose, with confluent nerves and without 

 veins, brownish-black, broadly whitish at the margin. Apothecia 

 moderate, orbicular, or nearly transverse, vertically adnate, brownish- 

 red, the margin crenulate ; spores elongato-t'usiform, 3-5-septate, 

 0,058-74 mm. long, 0,005-6 mm. thick. Cromb. Journ. Bot. 1874, 

 p. 147 ; Leight. Lich. Fl. ed. 3, p. 102 pro min. parte. Peltidea 

 malacea Ach. Syn. (1814) p. 240 pro parte. 



A very distinct species, though having a superficial resemblance to 

 some states of P. rufescens. The apothecia, which are not very numerous 

 in our few British specimens, are adnate on short, somewhat broad thai- 

 line lobules. 



Hab. Among mosses on rocks and about the roots of trees in moun- 

 tainous regions. Distr. Gathered only in the S.W. Highlands and the 

 N. Grampians, Scotland; may be found elsewhere. B. M. : Inverary, 

 Argyleshire ; Craig Cluny, Braemar, Aberdeenshire. 



/3. microloba Nyl. ex Lamy, Bull. Soc. Bot., xxv. (1878), p. 378. 

 Thallus smaller, more divided ; the lobes short, crisp, narrow. 

 Apothecia smaller, at length incurved. 



Smaller in all its parts, and might be mistaken for P. polydactyla var. 

 hymenina. In consequence of the thallus being more repeatedly lobed, 

 the apothecia are more numerous than in the type. 



Hab. Among mosses on walls in upland tracts of mountainous dis- 

 tricts. Distr. Found only in the S. Grampians, Scotland. B. M. : Glen 

 Lochay, Killin, Perthshire. 



2. P. canina Hoffm. Deutsch. Fl. ii. (1795) p. 106. Thallus 

 large, impresso-unequal, opaque, more or less adpresso-tomentellose, 

 of moderate thickness, roundly lobed, brownish-green when moist, 

 greyish when dry : beneath whitish, with prominent, concolorous or 

 pale nerves, and long white rhizinae. Apothecia moderate, sub- 

 rotundate, at length revolute, brown or brownish-red, the margin 

 nearly entire ; spores elongato-t'usiform, 3-5-septate, 0,066-70 mm. 

 long, about 0,004 mm. thick. Mudd, Man. p. 82, t. 1. fig. 22 ; 

 Cromb. Lich. Brit. p. 29 ; Leight. Lich. Fl. p. 107, ed. 3, p. 101. 

 Peltidea canina Gray, Nat, Arr. i. p. 428 ; Hook. Fl. Scot. ii. p. 60; 

 8m. Eng. Fl. v. p. 215 ; Tayl. in Mack. Fl. Hib. ii. p. 153. Lichen 

 caninus Linn. Fl. Suec. (1755) n. 1109: Huds. Fl. Angl. p. 454; 

 Lightf. Fl. Scot. ii. p. 845 ; With. Arr. ed. 3, iv. p. 69 ; Eng. Bot. 

 t. 2299. Lichenoides digitatum cinereum. latucce foliis sinuosis Dill. 

 Muse. 200, t. 27. f. 102 E. Liclienoides peltatum terrestre cinereum 

 ma jus, foliis divisis Dill, in Ray, Syn. ed. 3, p. 76, n. 78. Most of 

 the above, however, include also the following variety. Brit. 

 Exs. : Leight. n. 141 ; Mudd, n. 59. 



The most common and best -known species of the genus, easily dis- 

 tinguished by the large thallus, with its tomentellose and (when dry) 



