GYROPHORA. | @YROPHOREL. 327 
briata of the type. It somewhat resembles G. arctica, but at once differs 
in the smaller and thinner thallus. The apothecia are numerous, though 
small, in our specimens, 
Hab. On granite rocks in alpine situations.—Distr. Very local and 
rare among the N, Grampians, Scotland.—B. M.: Head of Glen Callater 
and Ben-naboord, Braemar, Aberdeenshire, 
3. G. cylindrica Ach. Meth. (1803) p. 107.—Thallus monophyl- 
lous or polyphyllous, moderate or somewhat small, thickish, smooth, 
sinuato-lobed, greyish or greyish-brown, usually greyish-pruinose, 
black-fibrillose at the margins ; beneath pale, here and there blackish, 
more or less fibrillose(medulla K—,CaCl—). Apothecia at first sessile, 
plane, then pedicellate, and at length subglobose, gyroso-plicate, 
thinly margined ; spores 0,010-14 mm. long, 0,006-8 mm. thick.— 
Gray, Nat. Arr. i. p. 477; Hook. Fl. Scot. ii. p.42; Sm. Eng. Fl. 
v. p. 218; Tayl. in Mack. Fl. Hib. ii. p. 155; Mudd, Man. p. 119. 
—Umbilicaria cylindrica Cromb. Lich. Brit. p. 40; Leight. Lich. 
Fl. p. 161, ed. 3, p. 148. Lichen cylindricus Ach. Prodr. (1798) 
p- 148. Gyrophora proboscidea Turn. & Borr. Lich. Br. p. 219. 
Umbilicaria varia w. proboscidea Leight. Ann. Mag. Nat. Hist. ser. 2, 
xvill. p. 291. Lichen proboscideus Huds. Fl. Angl. ed. 2, p. 551 ; 
Eng. Bot. t. 522 (two upper figs.); With. Arr. ed. 3, iv. p. 65. 
Jachen crinitus Lightf. Fl. Scot. ii. p. 360. Lichenoides corneum, 
marginibus eleganter fimbriatis Dill, Muse. 218, t. 29. f. 116 a.— 
Brit. Hws.: Leight. n. 95; Mudd, n. 88. 
Well distinguished from the preceding by the thallus being smooth, 
paler beneath and ciliate at the margins, as also by the absence of any 
medullary reaction. It is commonly monophyllous but often also poly- 
phyllous, very unequally lobed, naked or sometimes covered with a 
caesious ee In other respects it isa rather variable plant, giving 
rise to the forms and varieties that follow. The apothecia are usually 
numerous, as are also the spermogones, especially in otherwise sterile 
specimens, 
Hab. On rocks and boulders from upland to alpine situations.—Distr. 
Rather local in the mountainous tracts of W. and N. England and N. 
Wales; general and plentiful among the Grampians, Scotland ; local in 
W. Ireland.—B. M. : Dartmoor, Devonshire ; Dolzelly and Cwm Bychan, 
Merionethshire ; Glyder Vawr, Carnarvonshire; Cronkley Scary, 
Yorkshire; Teesdale, Durham. Ben Lawers and near Aberfeldy, Perth- 
shire ; Clova, Forfarshire ; Ben-naboord, Morrone, and near Invercauld, 
Braemar, Aberdeenshire; Ben Nevis, Inverness-shire. Mangerton and 
Brandon Mts., co. Kerry ; Connavalla, co. Cork. 
Form 1. denticulata Ach. Meth. (1803) p. 107.—Thallus with 
the margins lacero-laciniate, coarsely fringed and denticulate; other- 
wise as in the type.—Mudd, Man. p. 119.—Umbilicaria cylindrica 
var. denticulata Leight. Lich. Fl. p. 162, ed. 3, p.149. Umbilicaria 
varia e. proboscidea b. denticulata Leight. Ann. Mag. Nat. Hist. 
ser. 2, xvili. p. 293. Gyrophora proboscidea 3. denticulata Turn. & 
Borr. Lich. Br. p. 219. Lichen proboscideus Eng. Bot. t..522 (two 
lower figs.). Lichenoides corncum, marginibus eleganter fimbriatis 
Dill. Muse. 218, t. 29. f. 116 3. 
