487 
PL cell. aph. 5. IDIOTHALAMEAE. 
E. Thallus crust like ; apothecia flat , bordered , linear. 
Opegraphidae. 
Perithecium simple Graphis. 132. 
Apothecia hollow* grooved or flat ; 
edges open ; perithecium 0 Alexoria. 133. 
Apothecia slitlike ; edges swollen ; 
perithecium 0 Hysterina. 134 . 
A. Rhizomorphid^:. Thallus leatherlike, shrubby; 
apothecia tubercular; perithecium 0. 
I. 122. SPPLEROPHORON. Persoon. Ball-moss. 
Thallus crustlike, cartilaginous, branched, shrublike; 
inside towlike, rather solid ; apothecia nearly globular, 
sessile, terminating the branches of the thallus, and formed 
of it, which tearing open shows a black, powdery, globular 
mass included with it. 
1 . Sphcerophoron coralloides. Coral-like ball-moss . 
Thallus pale chestnut, scarcely divided ; branches lateral, 
long, weak, divaricated, forked, pointed, fibrilled ; apothecia 
nearly globular, smooth. 
Lichenoides non tubulosum, ramulis scutellis nigris terminatis, Dillen in 
j R aii Syn. 66, 13. 
Lichen globiferus, Lin. Mant. 133. 
Lichen globosus, Huds. FI. Angl. ed. 1, 460. 
Lichen fragilis /3, Huds. FI. Angl. 558. 
Stereocaulon globiferum, Hojfm. Germ. 151. 
Sphaerophoron coralloides, Achar. Meth. 134; Lich. 585. 
On mountain-heaths, and on the roots of fir-trees. 
2. S peer op hor on fragile. Brittle ball-moss. 
Thallus greyish, branched ; branches forked, short, 
crowded, eventopped, naked, cylindrical, bluntish ; apo- 
thecia globular topshape, rather warty. 
Lichen fragilis, Lin. S. P. 1621. 
Lichen casspitosum, Roth 1'ent. 
Coralloides fragile, Hoffni. Lich. 2,34. 
Stereocaulon fragile, Hoffm. Germ. 131. 
Sphaerophoron fragile, Achar . Meth. 135 ; Lich. 585 ; Engl. Bot. 2474. 
On stones, and mountains among mosses. 
3. Sphcerophoron compressum . Compressed ball-moss . 
Thallus whitish, branched ; branches compressed, twig- 
ged, rather fibrilled, naked; apothecia nearly globular, 
rather depressed above, smooth. 
