GYKOI'HOIU.J tiVKOl'lIOKr.l. 'A'S) 



mm. long, 0,008-10 mm. thick. — Miukl, Man. p. 120 ; Cromb. Joiirn. 

 Linn. 8oc. Bot. xvii. p. 57o. — UmhUlcaria grisea Lcight. Lif;h. Fl. 

 p. 157, ed. 3, p. 147. UnihiUcarla varia rj. (/risn Leight. Ana. 

 Mag. Xat. Hist. ser. 2, xviii. p. 28S. Lk'hsn griseus Sw. in Westr. 

 Vet. Ak. Handl. 1793, p. 52. (fi/rophu'a manna Ach. Eng. Bot. 

 t. 248(5 ; Gray, Xat. Arr. i. p. 478 ; Sm. Eng. Fl. v. p. 218. Lichrn 

 DWeaii With. Arr. ed. 3, iv. p. 03. L'chsn deustus Huds. Fl. Angl. 

 p. 455. Lichenoidi's coriacemn cinereain, pdtis atris compressis Dill. 

 Muse. 219, t. 30. f. 117. Lirheaoi les saxatile foliis minus dlciiiis, 

 citiereo-fuscum DiU. in Hay, Syii. ed. 3, p. 73, n. GG. 



Hcis its nearest ally in G. hirsuta Ach., wliich is unluiown in this 

 country. It is easily recoir.iizfd tr.)Tn tlie allied Rvitish species by tlie 

 colour of the thallus, which is generally mon )phylloiis, and by the cha- 

 racters of its upper and lower surfaces. With us it is not seen fertile. 



Hah. Oil rock-i in maritime districts. — Distr. Fouu.l onlv verv sp.vrin;rlv 

 in the Channel Islands and S.W. E.i.rlanl (lib. Huddle)".— li. M.": 

 Beauport, Island of .Jers-iy. 8t. Vincent's Rocks, Bristol, Gloucestershire. 

 There is also a specimen marked ? Glyder Vawr, X. Wales, where it is 

 not likely to have been gathered, 



2. G. proboscidea Ach. Meth. (1803) p. 105.— Thallus mono- 

 phyllous, somewhat thin, nearly moderate or small, crenate or 

 slightly lobed at the margin, reticulato-rugose (esp3cially in the 

 centre), blackish-brown or blackish, greyish-pruinose in the centre ; 

 beneath smooth, naked, pale-greyish or partly dark-greyish (K^^, 

 CaCl_''^ ^* ). Apothecia at first thinly margined and somewhat 



plane, at length immarginate, convex, gyroso-plicate ; spores 0,012- 

 18 mm. long, 0,000-8 mm. thick. — Eng. Bot. t. 2484 ; Gray, Nat. 

 Arr. i. p. 470 ; Hook. Fl. Scot. ii. p. 41 : Turn. & Borr. Lich. Br. 

 p. 222 ; Sm. Eng. Fl. v. p. 217; Mudd, Man. p. l\^.~UmhiUcaria 

 proboscidea Cromb. Lich. Brit. p. 40 ; Leight. Lich. Fl. p. 100, ed. 3, 

 p. 147. Lichen proboscideus Ach. Prodr. (1798) p. 147. UmbiJi- 

 caria varia d. deusta Leight. Ann. Mag. Xat. Hist. ser. 2, xviii. 

 p. 289. Lichen deastios Huds. Fl. Angl. p. 455 ; Lightf. Fl. Scot. ii. 

 p. 801 ; With. Arr. ed. 3, iv. p. 03. 



Distinguished from allied species by the thallus being more or less 

 reticulato-corrugate on the upper surface, with the rogte more distinct in 

 the centre and less visible towards the circumference, where it is some- 

 times nearly smooth. The thallus is closely appressed to the sub- 

 stratum, thinnish, somewhat rigid and brittle, varying in other respects 

 as in the forms and variety that follow. It is generally well fertile, with 

 numerous and small, or fewer and nearly moderate apothecia. The 

 spermogones are rare, with the spermatia about 0,004 mm. long, 0,001 

 mm. thick. 



Jfab. On rocks and stone walls in upland and subalpine regions. — 

 Distr. Somewhat local in X. Wales, X'. England, and in S. Scotland ; 

 general and plentiful amongst the Grampians ; reported also (but doubt- 

 fully) from S.W. Ireland. — B. M. : Cader Idris, 5lerionethshire ; Snow- 

 don, Carnarvonshire ; Cardiganshire ; Teesdale, Durham. Xew Galloway, 

 Kirkcudbrightshire; Ben' Lawers and Ben More, Perthshire; Clova, 



