Pl.cell.aph. 4. CENOTHALAMEiE. 113. Urceol. 459 
Lichen cinereus, Lin. Mant. 132 ; Engl. Bot. 1751, not 820. 
Verrucaria ocellata, Hoffm. Germ. 183. 
Urceolaria ocellata, Florke in Berl. Mag. 1810, 317. 
Urceolaria cinerea, Achar. Meth. 143 ; Lich. 336. 
On stones and mountains. 
Thallus sometimes white, sometimes smoke-grey; beds 
flat or convex ; apothecia few, or very numerous, when old 
elevated, sometimes with a very small border. 
6. Urceolaria scruposa. Rugged pitcher-moss. 
Crust wrinkled, plaited, granulated, greyish white; pro- 
ligerous flake pitchershape, black ; thalloid border swollen, 
bent in, rather wrinkled, drawn over the centre. 
Lichenoides crustaceum et leprosum, scutellis nigricantibus majoribus 
et minoribus, var. /S, Dillen Muse. 133.' 
Lichen scruposus, Schreb. Germ. 1 133 ; Engl. Bot. 266. 
Lichen excavatus, Relhan Cant. 426.. 
Patellaria scruposa, Hoffm. Germ. 186. 
Urceolaria scruposa, Achar. Meth. 147 ; Lich. 338. 
On the ground, and on stones and rocks. 
Proligerous flake has a border of its own. 
7. Urceolaria calcarea. Calcareous pitcher-moss. 
Crust determinately figured, very thin, rather cracked, 
slightly powdery, very white, at last greyish ; proligerous 
flake minute, rather concave, black, with a little hoary 
whiteness ; thalloid border slightly prominent, discoid, thin, 
at length separate, not cut. 
Lichen calcareus, Lin. Syst. Nat. ed. 12, 2, 709. 
Verrucaria contorta, Hoffm. Germ. 186. 
Urceolaria contorta nivea, Florke in Berl. Mag. 1810. 
Urceolaria cinerea, FI. Dan. 1432. 
Urceolaria calcarea, Achar. Meth. 142 ; Lich. 340. 
Thallus very variable; proligerous flake with a border of 
its own. 
8. Urceolaria Hoff manni. Hoffmann' s pitcher-moss. 
Crust thin, cracked in beds, smooth, dirty greyish ; fer- 
tile beds raised in the middle, lead-white ; proligerous flake 
slightly concave, black, with a greyish hoar ; thalloid border 
wrinkled, powdery, whiter. 
Lichen rupicola, Hoffm. Lich. 1, 97. 
Urceolaria contorta, Fiorke in Berl. Mag. 1810. 
Urceolaria Hoffmanni, Achar. Meth. 145 ; Lich. 353. 
On stones and rocks of different kinds. 
