GYROPHORA| GYROPHORACER 391 
Cromb. Lich. Brit. p. 40; Leight. Lich. Fl. p. 160; ed. 3, p. 147. 
U. varia var. deusta Leight. in Ann. Mag. Nat. Hist. ser. 2, 
xviii. p. 289 (1856). 
Exsicc. Croall n. 100. 
Differs from other species of the genus in the wrinkled corrugate 
upper surface, more marked towards the centre of the thallus, other 
parts of the thallus being frequently almost smooth; the lower 
surface is smooth and generally lighter in colour. The apothecia are 
usually abundant. 
Two of the specimens in the Linnean herbarium labelled Lichen 
proboscideus belong to G. cylindrica, a third is typical G. proboscidea 
(fide Wainio in Medd. Faun. & Fl. Fenn. xiv. p. 7 (1888)). Linnzus’ 
description refers to the latter. 
Hab. On rocks and stone walls in upland and subalpine regions.— 
Distr. The mountainous regions of N. Wales, N. England, 8.W. and 
the Grampians, Scotland, reported also from HE. and 8.W. Ireland.— 
B. M. Cader Idris, Merioneth ; Snowdon, Carnarvonshire; Cardigan- 
shire; Teesdale, Durham; New Galloway, Kirkcudbrightshire; Ben 
Lawers and Ben More, Perthshire; Clova, Forfarshire; Craig 
Coinnoch, Lochnagar, near Invereauld, Ben-naboord, Glen Callater, 
Ben Macdhui and Glen Cluny, Braemar, Aberdeenshire ; Ben Nevis, 
Invernessshire. : 
Form corrugata Mudd Man. p. 118 (1861) (incl. £. mesenteri- 
formis (non Wulf.)).—Upper surface of thallus with deeply 
marked reticulate ridges or corrugations, otherwise as in the 
species.— Var. exasperata Ach. Meth. Lich. p. 105 (1803); 
f. ewasperata Cromb. Monogr. i. p. 326. G. deusta var. corrugata 
and var. mesenteriformis (non Wulf.) Turn. & Borr. Lich. Brit. 
p. 222 (1839). Lichen exasperatus Gunn. Fl. Norw. ii. p. 131 
(1766) fide Th. Fr. (excl. Syn. Dill.). Uwmbilicaria corrtgata 
Hoffm. Pl. Lich. p. 65, t. 43, figs. 4-7 (1794). U. varia var. 
deusta ff. corrugata, mesenteriformis Leight. in Ann. Mag. Nat. 
Hist. ser. 2, xviii. pp. 290, 291 (1856). U. proboscidea var. 
exasperata Cromb. Lich. Brit. p. 40 (1870); ff. corrugata and 
mesenteriformis Leight. Lich. Fl. pp. 160, 161 (1871); ed. 3, 
p. 148. 
’ 
Connected with the species by intermediate stages; it represents 
an extreme northern or alpine form. 
Hab. On rocks and boulders in alpine places.—B. M. Ben-naboord, 
Braemar, Aberdeenshire. 
Form fimbriata Mudd Man. p. 118 (1861).—Thallus sparingly 
fibrillose or rhizinose at the margin and occasionally on either 
surface ; otherwise as in the species.—Cromb. Monogr. i. p. 326 ; 
var, deplicans Cromb. in Journ. Bot. xx. p. 273 (1882) & Monogr. 
i. p. 326. G. deusta var. fimbriata Turn. & Borr. Lich. Brit. 
p. 222 (1839). Uwmbilicaria proboscidea var. deplicans Nyl. Lich. 
Scand. p. 116 (1861); f. fimbriata Leight. Lich. Fl. p. 160; ed. 3, 
p. 147. 
