Pl. cell.aph. 5. IDIOTHALAME. 124. Variolar. 491 
Variolaria globulifera, Turner in Lin. Tr. 9,139; Ackar. Lich. 322. 
Lichen globuliferus, Engl. Bot. 2008. 
On the bark of trees. 
4. Variolaria communis. Common smallpox-moss. 
Crust cartilaginous, smooth, whitish, growing uneven 
and grey, sprinkled with white, unbordered  soredia; 
apothecia spheroid, powdery; nucleus rather membrana- 
ceous, flattish, pale, at length becoming naked. 
Variolaria communis, Achar. Lich. 322. 
‘On the bark of trees, old wood and stones. 
Thallus nearly insipid, varying from white to grey ac- 
cording to the age; soredia nearly globular, convex or flat. 
8. orbiculata. Crust thin, granular, rather radiately 
cracked, marked with zones, grayish-white; soredia cen- 
tral and scattered, flattish, scarcely bordered, similar in 
colour. 
Verrucaria orbiculata, Hoffm. Germ. 170. 
Lichen pallescens? Wulf. in Jacq. Coll, 3. 
Variolaria orbiculata, Achar. Meth. 13. 
Variolaria communis orbiculata, Achar, Lich. 323. 
On wood and barked trees. 
y. faginea. Crust rather spreading, bald, wrinkled and 
cracked, whitish ; soredia hemispherical, scattered, not bor- 
dered, rather solid, powdery, very white. 
Lichen fagineus, Lin. S. P. 1608. 
Variolaria faginea, Persoon in Uster nn. 7; Achar. Meth, 32. 
Verrucaria tubercularia, Heffm. Germ. 170. 
Variolaria communis faginea, char. Lich. 323. 
On the bark of trees, especially on beech, also on stones. 
0. aspergilla. Crust tartarlike, cartilaginous, regular, 
greenish; circumference smooth, cracked in rays; soredia 
scattered, superficial, flat, very slightly bordered, whiter 
than the thallus. 
Variolaria aspergilla, Achar. Meth. 13; Lich, 325; Engl. Bot, 2401. 
On rocks and stones. 
5. Variolaria amara. Bitter smallpox-moss. 
Crust wrinkled, cracked, uneven, rather powdery white, 
slightly greyish; apothecia pressed close, plano-concave, 
bordered, bearing soredia, similar in colour to the thallus. 
< Lichen fagineus, Engl. Bot. 1713. 
Variolaria amara, Achar. Lich. 324, 
On the bark of trees. 
