LEPTOGIUN. | COLLEMEI. 73 
Var. y. crenatum Nyl. Flora, 1875, p.106.—Thallus small, smooth 
or subsmooth ; lobes short, crowded, somewhat crenato-incised at 
the margins. Apothecia small, scattered——Cromb. .Grevillea, xv. 
p. 13. 
A marked variety, at once distinguished by the entirely smooth thallus, 
only a few lobes here and there being slightly rugulose. Its small 
crowded lobes suggest L. pulvinatum. In the only fertile specimen seen, 
the apothecia are but few. 
Hab. On the ground among schistose rocks in subalpine localities. — 
Distr, Extremely local and scarce among the S. Grampians of Scotland. 
—B. M.: Craig Vore and Ben Lawers, Perthshire, 
14. L. palmatum Mont. Pl. Cell. (1840) p. 128, in Webb & Berth. 
Canar.—Thallus Jaciniate, thin, greenish- or glaucous-brown; lacinize 
sublinear, suberect, corniculato-convolute. Apothecia small, sessile, 
pale-red, the thalline margin elevated, entire, concolorous ; spores 
ellipsoid or attenuate at the apices, variously septate and divided 
(irregularly murali-locular), 0,028-40 mm. long, 0,016-18 mm. 
thick.—Nyl. Syn. i. p. 126; Mudd, Man. p. 48; Cromb. Lich. Brit. 
p. 9; Leight. Lich. FI. p. 34, ed. 3, p. 31.—Collema palmatum Sm. 
Eng. Fl. v. p. 210. Scytenium palmatum Gray, Nat. Arr. i. p. 398. 
Lichen palmatus Huds. Fl. Angl. ed. 2 (1778), p. 536; With. Arr. 
ed. 3, iv. p. 74; Eng. Bot. t. 1635. Lichenoides pellucidum fuscum 
corniculatum Dill. Muse. 148, t. 19. f. 30. Lichenoides gelatinosum 
tenertus laciniatum ex fusco purpurascens Dill. in Ray, Syn. ed. 3, 
72. 54, 
The thallus is ceespitose, moderate or small, often tinged purplish, and 
rather brittle when dry. It somewhat resembles var. 8 of the preceding 
in the herbarium, but is distinguished by its nearly erect laciniz, revo- 
lute at the margins. The apothecia are rare, and are but few when 
present. On the thallus is sometimes found the parasitic Odryzwm cor- 
niculatum. 
Hab. Among mosses and short grass in sandy and gravelly places in 
maritime and upland tracts.—Dzstr. General in the Channel Islands and 
England, rare in Scotland and Ireland—B. M.: St. Brelade’s Bay, 
Island of Jersey; Island of Herm. Yarmouth, Norfolk; Hale End, 
Epping Forest, Essex ; near Stony Cross, New Forest, Hants; Swanage, 
Dorsetshire ; Lustleigh Cleeve, Bottor Rock, and near Okehampton, 
Devonshire; Hales End, near Malvern, Worcestershire; Coatham, Cleve- 
land, Yorkshire. Sands of Barrie, Forfarshire; Castleton of Braemar. 
Aberdeenshire. Luggelaw, co. Wicklow. 
15. L. tremelloides Gray, Nat. Arr. i. (1821) p. 400.—Thallus 
lobed, thin, somewhat smooth, dull olive-green or glaucous leaden- 
coloured ; lobes oblong, imbricate or crisp, entire at the margins. 
Apothecia moderate, urceolate or plane, reddish or pale-red, the 
margin thick, entire; spores ovoid, or often ellipsoid, narrowed at 
either apex, 3-septate, irregularly murali-locular, 0,021-27 mm. 
long, 0,008-9 mm. thick.—Nyl. Syn. i. p. 124, t. i. f.7; Mudd, 
Man. p. 48; Cromb. Lich. Brit. p. 8; Leight. Lich. Fl. p. 28, 
