100 LICHENACEI. [cONIOCTBK. 



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

 Blair Athole and Aberfeldy, Perthshire. 



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

 what stout, capitulum hemispherical ; otherwise as in the type. — 

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

 viUea, xv. p. 14. — Mucor fu Jims 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. 



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

 land tracts.— Z'/sf/-. Local and scarce in AV. England, and amongst 

 the Central Grampians, Scotland. — B. M. : Oswestr}-, Shropshire. Blair 

 Athole, Perthshire. 



2. C. sulphurea XyL ex Cromb. GreviUea, xv. (1886) p. 14. — 

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

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

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

 0,0025-0,003 mm. in diameter. — Lichen svljjhurevs Eetz. Yet. Ak. 

 Handl. 1769, p. 249. Coniocyhe furfuracea c. sulpTivreXla 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- 

 callv distinct. It definitely and const-mtl)- preserves its own proper type, 

 and it has smaller gonidimia. In the British specimens the thaUus is 

 well developed, with the apothecia somewhat scattered. 



Hab. On semiputrid trunks of old oaks in woi^ded upland tracts. — 

 Distr. Extremely local and scarce, in S. and X. England. — B. M. : Xew 

 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 palUdum Pers, Fst. Ann. 

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

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

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



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

 colour of the tliallus it approximates, by the hyaUne and stout stipes, 

 and the colour of the sporal mass. 



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

 upland tracts. — iJhtr. Only a few localities in Ceutral and X. England, 

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

 where. — B. M. : Tee.sdalp, Durham ; near Hexham, X'orthumberland. 



