STICTINA.J ST1CTEI. 267 



El. Hib. ii. p. 151 ; Mudd, Man. p. 89. Lichen crocatus Linn. Mant. 

 (1771) p. 310; Dicks. Crypt, fasc. ii. p. 22; With. Art. ed. 3, iv. 

 p. 52; Eng. Bot. t. 2110. Brit. Exs. : Cromb. n. 34 ; Dicks. Hort. 

 Sic. n. 24. 



The plant is sprinkled with scattered, citrine soredia, situated on the 

 reticulations and on the margins, which contrast with its otherwise 

 darkish colour. The medullary layer is either white or white-citrine. 

 In this conntry neither apothecia nor spermogones occur. 



Ilab. Among mosses on trees and rocks in moist shady places, generally 

 ravines, in subalpiiie tracts. Distr. Extremely local in S.W. England 

 and S. Scotland, more frequent in the W. Highlands ; scarce in S.W. 

 and N. Ireland. B. M. : Walkham River and near Vixen Tor, Dart- 

 moor, Devonshire ; Cam Galva, near Peuzance, Cornwall. Dalmahoy 

 hill, near Edinburgh ; Inverary, Glen Ealloch, and head of Loch Awe, 

 Argyleshire ; ravine at foot of Ben More, and Aberfeldy, Perthshire ; 

 Glen Morriston, Inverness-shire. Pigeon Island in the river Kenniare, 

 co. Kerry ; Cushendall, co. Antrim. 



b. Cypliellatc?. Thallus with thelotremoid or urceolate cyphellse. 



3. S. fuliginosa Nyl. Syn. i. (1860) p. 347. Thallus moderate 

 or small, monophyllous, somewhat rigid, smoothish or unequal, 

 nearly opaque, roundly lobed, cervine or greyish-brown ; beneath 

 tomentose, pale-brown, with whitish or pale cyphelUe ; lobes gene- 

 rally broad and rounded, sprinkled with small brownish-black or 

 black, coralloid isidia. Apothecia small, scattered, plane or slightly 

 convex, reddish-brown, the margin at first piloso-ciliate ; spores 

 1-3-septate, fusiform, colourless, 0,027-40 mm. long, 0,007-8 mm. 

 thick. Cromb. Lich. Brit. p. 30; Leight. Lich. El. p. 116, ed. 3, 

 p. 109. Sticta fuliginosa Gray, Nat. Arr. i. p. 430 ; Hook. El. 

 Scot. ii. p. 59 ; Sm. Eng. El. v. p. 206 ; Tayl. in Mack. El. Hib. ii. 

 p. 152 ; Mudd, Man. p. 88. Lichen fuliginosus Dicks. Crypt, fasc. 

 i. (1785) p. 13; With. Arr. ed. 3, iv. p. 70; Eng. Bot t. 1103. 

 Lichenoides faliginosum et pulverulentum, scutellis i-ubiginosis Dill. 

 Muse. 198, 't. 26. f. 100 A. Brit. Exs.: Leight. n. 142; Larb. 

 Cojsar. n. 61 ; Cromb. n. 133. 



The thallus, which in the larger states expands from a centre, is with 

 us generally smoothish, seldom rugose. It is often covered with the 

 blackish efflorescent isidia, by which at once it may be distinguished 

 from the allied species. The apothecia, which are rare in Great Britain, 

 are at length somewhat biatorine. 



Hal). On mossy trunks of old trees and on rocks in moist shady places, 

 especially by waterfalls, in upland districts. Distr. General and not un- 

 common, though almost confined to the Western part of Great Britain ; 

 apparently rare in W. Ireland and the Channel Islands. B. M. : La 

 Coupe, Island of Jersey; Jerbourg, Island of Guernsey. Lydd, Kent; 

 Isle of Wight ; Walkhampton and Ivy Bridge, near Lustleigh and More- 

 ton, between Chudleigh and Ashburton, and at Beckey Falls, S. Devon ; 

 Boconnoc, Launceston, Camelford, Withiel, and near Penzance, Cornwall ; 

 Annet Island, Scilly ; Malvern, Worcestershire ; Whiteclifte Rocks, near 

 Ludlow, Shropshire ; Hafod, Cardiganshire ; Dolgelly and Aberdovey, 



