ALECTORIA | USNEACEE 187 
margin entire, at length excluded, the dise dull subfuscous ; spores 
small, colourless, 6-9 » long, 4-5 p thick.—S. F. Gray Nat. 
Arr. i. p. 408 ; Hook. Fl. Scot. ii. p. 67 & in Sm. Engl. Fl. v. 
p. 227; Tayl. in Mackay Fl. Hib. ii. p. 86; Mudd Man. p. 70 
pro parte; Cromb. Lich. Brit. p. 24; Leight. Lich. Fl. p. 88; 
ed. 3, p. 80. Muscus corallinus saxatilis faniculaceus Dill. in 
Ray Syn. ed. 3, p. 65 (1724). Usnea jubata nigricans Dill. Hist. 
Muse. p. 64, t. 12, fig. 7 (1741). Lichen jubatus L. Sp. Pl. 
p. 1155 (1753) pro parte; Huds. Fl. Angl. p. 461 pro parte ; 
Lightf. Fl. Scot. ii. p. 891 pro parte ; With. Arr. ed. 3, iv. p. 46 ; 
Engl. Bot. t. 1880 pro parte. 
Exsice. Bohl. n. 83; Croall n. 397; Cromb. n. 128; Johns. 
n. 247; Leight. n. 72; Mudd n. 37. 
Erect when young, but becoming pendulous and often very much 
tangled. The colour varies very considerably. Small prominent 
rimmed soralia are frequent on the stouter branches. Spermogones 
are rare; they are enclosed in scattered thalline tubercles; the 
“spermatia minute, 6-7 p long, °05 p thick. 
Hab. On the trunks and branches of old trees, chiefly pine and 
larch, more rarely on boulders among mosses, in wooded upland and 
subalpine regions.—Distr. General and sometimes abundant in hilly 
and mountainous regions—B. M. Roughton, Cornwall; Hay Tor 
and Vixen Tor, Dartmoor, Devon; New Forest, Hants ; Tunbridge 
Wells, St. Leonards, Balscombe and Pond Leigh, Sussex; Charn- 
wood Forest, Leicestershire ; Rhewgreidden, Dolgelly and near Bar- 
mouth, Merioneth; Anglesea; near Kingley, Warwickshire; near 
Oswestry, Shropshire ; Malvern, Worcestershire ; Chatsworth, Derby- 
shire; Baysdale and near Great Ayton, Yorkshire; Teesdale, 
Durham ; Keswick and Alston, Cumberland; The Cheviots, North- 
umberland ; New Galloway, Kirkcudbrightshire ; Beld Craig, Moffat, 
Dumfriesshire ; Pentland Hills, near Edinburgh ; Appin, Argyll; Glen 
Falloch, Killin, Ben Lawers and Knock of Crieff, Perthshire ; Deerhill 
Wood and Rossie Moor, Forfarshire; Ballochbuie Forest, Ballater, 
Craig Cluny, Mar Forest and Morrone, Braemar and Countesswells 
Wood, Aberdeenshire ; Rothiemurchus Woods, Glen Nevis and Glen 
Moriston, Invernessshire ; Cawdor, Nairnshire; Lairg, Sutherland. 
Var. lanestris Ach. Lich. Univ. p. 593 (1810).—Thallus 
smaller, decumbent, rather soft, sparingly soraliate, the branches 
numerous, short, slender, densely entangled.—Form lanestris 
Cromb. in Journ. Bot. x. p. 233 (1872); f. tenerrima Cromb. in 
Grevillea xv. p. 48 (1886). 
A small prostrate variety to which Crombie has referred the upper 
figure in Engl. Bot. t. 1880. Form tenerrima is still shorter and 
more tangled, somewhat resembling Ephebe in appearance. No 
fructification has been observed. 
Hab. On fir palings and trunks of birch trees.— Distr. Rare in 
upland districts.—B. M. Helsby Hill, Cheshire; Killin, Perthshire ; 
Ballochbuie Forest and Morrone, Braemar, Aberdeenshire. 
Subsp. subcana Nyl. ex Cromb. in Journ. Bot. xiv. p. 360 
(1876).—Thallus pendulous, slender, of moderate length, much 
