LECIDEA| LECIDEACE: 471 
L. amphiplecta Stirt. 1. e—Similar to L. furvella Ny]. 
(Part 2, p. 94), but with a colourless hypothecium, the paraphyses 
concrete and as if reticulate and the epithecium thick, con- 
glutinate, brownish-black. 
With potash the paraphyses become more distinct, as irregular, 
disjointed or nearly moniliform threads. 
Hab. On rocks, Ben Lawers, Perthshire. 
L. daswa Stirt. 1. c—Thallus brown or brownish-black, 
loosely adherent, soft, granulate-furfuraceous or isidioid, diffract- 
areolate almost as in L. furvella Nyl., but sometimes thinner and 
more scattered. Apothecia brownish-black or black, small 
(-2--3 mm. wide) concave, acutely marginate, becoming plane, 
with the margin depressed ; within reddish-brown ; hypothecium 
dark or reddish-brown ; paraphyses irregular, not distinct, the 
apices concolorous, not clavate ; spores 8 in the ascus, colourless, 
spherical, simple, 3°5-4°5 » in diameter ; hymenial gelatine un- 
changed with iodine. 
Considered by Stirton as akin to L. antiloga Stirt. (Part 2, p. 100). 
Hab. On fallen wood, near Ben Lawers, Perthshire. 
L. sanguinaria Ach. (Part 2, p. 105.) 
Subsp. subsanguinaria Stirt. tom. cit. p. 218.—Similar to 
the species, but the thallus within continuously or here and there 
reddish (K—, CaCl—). Spores occasionally 2 in the ascus, 
70-120 p» long, 32-54 p thick. 
Hab. Corticolous, near Kinloch Rannoch, Perthshire. 
BIATORELLA De Not. (Part 2, p. 107.) 
§i. Eupratoretta Th. Fr. Lich. Scand. p. 397 (1874).— 
Thallus evident or indistinct. Apothecia mostly soft and rather 
pale within (biatorine). 
at 
To include spp. 1-6 and also 44 B. campestris Th. Fr. (Part 2, 
p- 358). 
§ ii. Sarcoayne Th. Fr. tom. cit. p. 405. Sarcogyne Flot. in 
Bot. Zeit. viii. p. 382 (1850).—Thallus superficial or immersed. 
Apothecia more or less carbonaceous, with prominent proper 
margins. 
The following species of Biatorella were classified by Crombie 
under Lecanora (Monogr. i. p. 487). They are transferred to the 
lecideine genus because of the absence of gonidia in the apothecium. 
They are numbered in succession to the Biatorellx in Part 2. 
Thallus evident. 
7. Biatorella pruinosa Mudd Man. p. 191, t. 3, fig. 74 
(1861) (inel. var. regularis)—Thallus thin, effuse, furfuraceous ; 
