LECANORA. | LEGANO-LECIDEEI. 481 
P. Apothecia lecanorine, more or less immersed; thece myrio- 
spored; spores (very rarely 8-32ne) simple, usually small, 
colourless; hymenial gelatine variously tinged with iodine. 
Spermogones with simple sterigmata and minute oblongo- 
ellipsoid spermatia. (Acarospora Mass. Rich. (1852) p. 27 
pro maxima parte.) my 
182. L. glaucocarpa Ach. Vet. Ak. Handl. (1810) p. 151.— 
Thallus squamulose, opaque, pale-livid or lurid-brown, white 
beneath ; squamules somewhat erect or depressed, thickish, scattered 
or rarely subimbricate, free and crenate at the margins (K —, 
CaCl —). Apothecia somewhat large, nearly plane, cesio-pruinose 
or naked, thick, reddish-brown ; the thalline margin thick, entire ; 
spores oblongo-bacillar, 0,003-6 mm. long, 0,0015-25 mm. thick ; 
hymenial gelatine intensely and persistently bluish with iodine.— 
Cromb. Lich. Brit. p. 56; Leight. Lich. Fl. p. 182, ed. 3, p. 168.— 
Lichen glaucocarpus Wahl. Vet. Ak. Handl. 1806, p. 143, t. iv. f. 4. 
A well-marked plant easily recognized by the characters of the thalline 
squamules and of the apothecia. In the British specimens the thallus is 
somewhat scattered, at times little developed and visible chiefly around 
the apothecia (form discreta, Krempelh. Lich. Fl. Bayer. p. 17). These 
are occasionally somewhat aggregate with the margin flexuose. Itisa 
somewhat variable plant, of which the British forms may be included 
under the variety that follows. 
Hab. On calcareous and schistose rocks in mountainous regions.— 
Distr, Local in N. England and on the Grampians, Scotland.—B. M.: 
Craig-y-Rhiw, Oswestry, Shrophire; Teesdale, Durham. Ben Lawers 
and Craig Tulloch, Perthshire ; Craig Guie, Braemar, Aberdeenshire. 
Var. 6. depauperata Cromb. Journ. Bot. 1873, p. 134; Grevillea, 
xix. p. 58.—Thallus obsolete. Apothecia sublecideine, variable in 
size, naked or pruinose, scattered or crowded, the margin more or 
less thickish.— Leight. Lich. Fl. ed. 3, p. 169.— Acarospora cervina y. 
glaucocarpa *depauperata Koerb. Syst. Lich. Germ. (1855) p. 155. 
Confluent with less developed states of the type, but differs in being 
ecrustaceous and in the variable apothecia. According to the differences 
in these it presents two well-marked forms. 
Form 1. pruinifera Cromb. Grevillea, xix. (1891) p. 58.— 
Apothecia moderate, scattered or crowded, casio-pruinose, the 
margin entire or undulate.—The trivial name prutnosa given to 
this by Krempelhuber (Lich. Fl. Bayer. (1861) p. 172) is not to be 
retained, having been previously applied to an allied species. 
Characterized by the pruinose apothecia, which give it much the 
appearance of L. pruinosa (Sm.) Nyl. When more crowded they often 
become angulose. 
Hab. On calcareous rocks in mountainous districts—Distr. Only 
sparingly on the Central and N. Grampians, Scotland.—B. M.: Craig 
Tulloch, Blair Athole, Perthshire; Craig Guie and Morrone, Braemar, 
Aberdeenshire. i : 
I 
