484 120. Phacotr. 4. CENOTHALAME:. Pl. cell. aph. 
6. Phacotrum chrysocephalum. Gold-head phacotrum. 
Crust granular, conylomerated, lemon-yellow; apothecia 
nearly topshape; centre convex, umber-brown; border 
ellow, powdery; underneath naked, black, shining; podi- 
cils threadlike, brassy, powdery. 
Lichen chrysocephalus, Z'urner in Lin. Tr. 7,88; Engl. Bot. 2501. 
Calicium chlorellum elatinum, Achar. Meth. 95, 
Calicium chrysocephalum « and 6, Achar. Meth. Suppl. 15; Lich, 239. 
On old wood, walls, and the bark of trees. 
7. Phacotrum trabinellum. Board phacotrum. 
Crust thin, greyish-white; apothecia at last lentilshape, 
centre biack-brown, with a grey hoar; border yellow- 
green. 
Calicium trabinellum, Achar, Meth. Suppl. 15. 
Lichen trabinellus, Engl. Bot. 1540. 
Calicium claviculare 6 and y, Achar. Lich, 255. 
Calicium xylonellum trabinellum, 4char. Meth. 95. 
Calicium chlorellum trabinellum, Wahl. Lapp. 487, 
On boarded buildings. 
8. Phacotrum cantherellum. - Beam phacotrum. 
Crust thin, whitish, rather powdery; apothecia lentil- 
shape; centre flesh-colour afterwards reddish, with a white 
hoar; podicils threadlike, naked, pale, growing brownish 
and black. 
Lichen cantherellus, Achar. Prod. 85, 
Calicium pallidum, Persoon in Ust. Ann. 7, 20. 
Caiicium cantherellum, Achar. Meth. 96; Engl, Bot. 2557. 
Calicium peronellum, Achar. Meth. 96. : 
Calicium cantharellum « and 8, Achar. Lich. 240. 
On rotten wood and the bark of old trees. 
9. Phacotrum ferrugineum. Rust-colour phacotrum. 
Crust thin, granular, tartarlike, rusty-white; apothecia 
thick, black, often conglomerate; centre pale rust-colour ; 
podicils short. 
Calicium ferrugineum, Engl, Bot. 2473. 
On pales. 
10. Phacotrum eruginosum. Verdigris phacotrum. 
Crust thin, tartarlike, rather granulated, verdigris-grey ; 
apothecia black, hemispherical, centre very convex, brown- 
ish-black ; podicils slender black. 
Calicium wruzinosum, Engl, Bot, 2502. 
On old boards. 
