100 LICHE^ACEI. [CONIOCTBK. 



Durham ; Bassenthwaite Lake, Cumberland. Calderbauk, near Glasgow ; 

 Blair Athole and Aberfeldy, Perthshire. 



Form fulva Fr. Lich. Eur. (1831) p. 382. Stipes short, some- 

 what stout, capitulum hemispherical ; otherwise as in the typo. 

 Mudd, Man. p. 262; Leight. Lich. Fl. ed. 3, p. 46 ; Cromb. Gre- 

 villea, xv. p. 14. Mucor fulvus Linn. Sp. PI. ed. 3 (1764) p. 1655. 



This form differs only in the shorter, stouter stipes and the form of the 

 capitulum. Where the" plant is abundant, transition-states may be seen 

 in the same specimen. 



Hob. On dead stems and mosses on walls and on the ground in up- 

 land tracts. Distr. Local and scarce in AV. England, and amongst 

 the Central Grampians, Scotland. B. M. : Oswestry, Shropshire. Blair 

 Athole, Perthshire. 



2. C. snlphurea Nyl. ex Cromb. Grevillea, xv. (1886) p. 14. 

 Thallus effuse, leprose, very thin, greyish or greyish-white, often 

 obsolete. Apothecia small, sulphureo-pulverulent ; stipes short, very 

 Blender ; capitulum minute, globose ; sporal mass yellow ; spores 

 0,0025-0,003 mm. in diameter. Lichen mlpliureus Eetz. Vet. Ak. 

 Handl. 1769, p. 249. Coniocyke furfuracea c. sulphuretta Fr. Mudd, 

 Man. p. 262 ; Cromb. Lich. Brit. p. 14 ; Leight. Lich. Fl. p. 47, 

 ed. 3, p. 46. 



Though regarded as a variety of the preceding, differing chiefly in the 

 colour of the thallus and the smaller apothecia, this appears to be specifi- 

 cally distinct. It definitely and constantly preserves its own proper type, 

 and" it has smaller gonidimia. In the British specimens the thallus is 

 well developed, with the apothecia somewhat scattered. 



Hob. On semiputrid trunks of old oaks in wooded upland tracts. 

 Distr. Extremely local and scarce, in S. and N. England. B. M. : New 

 Forest, Hants ; Teesdale, Durham. 



3. C. pallida Fr. Sched. Crit. i. (1824) p. 3. Thallus very thin, 

 leproso-pulverulent, white, often obsolete. Apothecia small ; stipes 

 moderate, stout, hyaline or yellow, rarely brownish above ; capitu- 

 lum globose ; sporal mass white or pale : spores 0,004-10 mm. in 

 diameter. Mudd, Man. p. 262 ; Cromb. Lich. Brit. p. 14 ; Leight. 

 Lich. Fl. p. 47, ed. 3, p. 46. Calicium pallidum Pers. Ust. Ann. 

 (1794) p. 20, t. 3. if. 1, 2. Calicium peronellum Turn. & Borr. Lich. 

 Br. p. 158; Sm. Eng. Fl. v. p. 141. Phacotium canthereUum Gray, 

 Nat. Arr. i. p. 484. Lichen caniharellus Eng. Bot. t. 2557. 



This may easily be recognized from the preceding, to which in the 

 colour of the thallus it approximates, by the hyaline and stout stipes, 

 and the colour of the sporal mass. 



Hab. On stumps and trunks of old decayed trees in shady places in 

 upland tracts. Distr. Only a few localities in Central and N. England, 

 though what appears to be the barren thallus has been met with else- 

 where. B. M. : Teesdale, Durham ; near Ilexham, Northumberland. 



