Pl.cell.aph. 4. CENOTHALAMEiE. 120. Phacotr. 4S3 
2. Phacotrum claviculare. Nail-head phacoirum. 
Crust spreading, granular, slightly powdery, greyish; 
apothecia nearly globular, afterwards lentilshape, greyish- 
black; podicils cylindrical, thickish, black. 
Lichen clavieularis, Engl. Bot. 1465. 
Calicium salicinum, Persoon in Ust. Ann. 7, 20. 
Calicium claviculare, Achar. Meth. 90; Lich. 234. 
On beams, rafters, and the bark of old trees. 
3. Phacotrum sphcerocephalum. Round-head phacoirum . 
Crust very thin, smooth, greyish ; apothecia nearly lentil- 
shape ; centre brownish, edge greyish ; podicils threadlike, 
black. 
Coralloides fungiforme arboreum nigrum, vix crustosum, Dillen Muse . 
78. 
Mucor lichenoides, Lin. S. P. 1655. 
Lichen sphaeroceplialus, Sicart. N. Act. Ups. 4 ; Engl. Bot. 414. 
Trichia lichenoides, Sibth. Oxon. 406. 
Clathrus cinereus, Huds. FI. Angt. 631 . 
Calicium claviculare sphserocephalum, Achar. Lich. 255. 
Calicium sphaerocephalum, Achar. Meth. 91. 
On palings. 
4. Phacotrum hispidulum. Roughish phacotrum. 
Crust thin, greenish ; apothecia cupsliape, as well as the 
centre roughish with a flocklike rust-coloured powder. 
Calicium trachelinum hispidulum, Achar. Lich. 237. 
On the bark of trees. 
5. Phacoirum hyperellum. Bark phacotrum . 
Crust cartilaginous, wrinkled in beds, bald, greenish- 
yellow; apothecia lentilshape, rust-colour, powdery; podi- 
cils thick, cylindrical, pitch-black, thickest at bottom. 
Lichen hyperellum, Achar. Prod. 85; Engl. Bot. 1832. 
Calicium hyperellum, Achar. Meth. 93 ; Lich. 237. 
On the bark of trees. 
Sporidia combined in pairs. 
(3. roscidum. Crust granularly wrinkled, greenish or 
greyish ; apothecia lentilshape, with a rust-colour powder, 
underneath greyish, afterwards irregular, conglomerated; 
podicils thick, short, black. 
Lichen graniformis, Dickson Crypt. 1, 10; Engl. Bot. 1464. 
Calicium claviculare roscidum, Achar. Meth. 90. 
Calicium hyperellum roscidum, Achar. Lich. 238. 
On the bark of trees, and timber-work. 
2 i 2 
