Plitelleaph. 4. CENOTHALAMEA. 116.Gyroph. 477 
Lichen proboscideus, Lin. S. P. 1617. 
Lichen deustus, Lightf. Scot. 861. 
Lichen exasperatus, Gun. Norv. 
Lichen mesenteriformis, EArh. Crypt. 89. 
Umbilicaria mesenterica, Schrad. Germ. 163. 
Umbilicaria corrugata, Hoffm. Germ. 112. 
Gyromium proboscideum, Wahlenb. Lapp. 483. 
Gyrophora Jacquinia, Achar. Meth. 104, 
Gyrophora proboscidea «, 8, and y, Achar, Meth. 1053; Lich. 220. 
Upon rocks. : 
3. Gyrophora arctica. Arctic brain-moss. 
Thallus thick, hard, stiff, with raised dots, wrinkled, 
brown-olive afterwards blackish; underneath naked, bald, 
pale ochre-yellow, blackish in the middle: apothecia nearly 
globular, very much wrinkled. 
Gyrophora arctica « and 8, Achar, Meth. 106; Lich. 221. 
Gyromium proboscideum arcticum, Washlenb. Lapp. 483. 
On alpine rocks. 
4, Gyrophora cylindrica. Cylindrical brain=moss. 
Thallus rather naked, livid grey, plaited and. lobed, 
fringed; underneath smooth, pale with branched fibrils; 
apothecia raised, flattish, circularly and meanderingly 
plaited. 
Lichen cylindricus, Lin. Amen. -4cad. 
Lichen crinitus, Lightf. Scot. 360. 
Michen proboscideus, Hedwig Crypt.1; Engl. Bot. 522, 
Umbilicaria crinita, Hoffm. Germ. 112. 
Gyromium cylindricum, Wahlenb. Lapp. 483. 
Gyrophora cylindrica, Achar. Meth. 107; Lich. 223. 
‘Upon mountains and rocks. 
6. fimbriata. Thallus many-leaved, folded up, lobes 
round, underneath fibrilled, edge with very close, short, 
branched fringe; apothecia saucershape, nearly plain. 
Gyrophora cylindrica fimbriata, Achar. Lich, 224. 
5. Gyrophora erosa. Torn brain-moss. 
Thallus wrinkled, olive-brown ; circumference perforated, 
sivelike, irregularly jagged; underneath greyish, bald, ra- 
ther granular, slightly fibrilled; apothecta rather convex, 
meanderingly plaited. 
‘Lichenoides rugosum durum pullum, peltis atris verrucosis, Dillen 
Musc. 220. 
Lichen torrefactus, Lightf. Scot. 862. 
Lichen erosus, Weber Gott. 259. 
Unmbilicaria torrefacta, Schrad. Germ. 1, 104, 
Umbilicaria erosa, Hoffm. Germ, 111. 
Gyromium erosum, Waklenb. Lapp. 482. 
Gyrophora erosa, Achar. Meth, 103; Lich, 224; Engl. Bot, 2066, 
