474 CYCLOCARPINE [BIATORELLA 
clavus DC. FI. Fr. ii. p. 348 (1805). Lecidea eucarpa Nyl. in 
Bot. Not. 1853, p. 163. Lecanora eucarpa Stizenb. Lich. Helv. 
p- 134 (1881-2); Cromb. in Grevillea xix. p. 58 (1891) & 
Monogr. i. p. 488. IL. glaucocarpa f. eucarpa Leight. Lich. 
Fl. p. 183 (1871); ed. 3, p. 168. Cathisinia concinna Stirt. in 
Scott. Nat. iii. p. 307 (1888). 
Distinguished by the large apothecia with rugose margins. 
Hab. On granitic rocks in maritime districts or by inland waters. 
—Distr. Rare in the Channel Islands and in Scilly, and among the 
Scottish Grampians.—B. M. West Coast of Guernsey; St. Mary’s, 
Scilly ; Loch Rannoch, Perthshire. 
ll. B. privigna A. L. Sm.—Thallus indistinct or obsolete. 
Apothecia moderate in size, generally congregate, rounded or 
angular from pressure, the disc plane, reddish when moist, 
blackish when dry, brick-red under the outer black crust, the 
margin prominent, persistent, generally entire; hypothecium 
pale-coloured ; paraphyses slender, conglutinate, thickly septate, 
reddish-brown upwards ; spores many, minutely ellipsoid, 3-4 p 
long, 1°5 » thick; hymenial gelatine blue then dull-greenish or 
tawny with iodine.—Lichen simplex Sm. Engl. Bot. t. 2152 (two 
right hand figs.) (1810) (non Dav.). Lecidea privigna Ach. 
Meth. Lich. p. 49 (1803); Hook. in Sm. Engl. FI. v. p. 184. 
Endocarpon smaragdulum var. privigna Leight. Angioc. Lich. 
p- 16 (1851). Lecanora fuscata var. privigna Cromb. Lich. Brit. 
p- 56 (1810). L. squamulosa f. privigna Leight. Lich. Fl. p. 185 ; 
ed.3, p. 170. L. privigna Nyl. in Bull. Soc. Linn. Norm. sér. 2, 
vi. p. 288 (1872) ; Cromb. Monogr. i. p. 489. 
Easice. Johns. n. 277 ; Larb. Lich. Hb. n. 254. 
Distinguished from B. clavus especially by the smaller apothecia 
and by the pale colour of the hypothecium. 
Hab. On arenaceous and granitic rocks inwmaritime and upland 
districts.—Distr. Rare but widely distributed in the British Isles.— 
B. M. Alderney; St. Brelade’s, Jersey; Shanklin, I. of Wight; Bywell, 
Northumberland; Bay of Nigg, Kincardineshire; Woodside, near 
Aberdeen. 
12. B. simplex Br. & Rostr. Lich. Dan. p. 115 (1869).— 
Thallus deeply immersed. Apothecia minute, concave or plane, 
variously corrugate, black, the margin prominent, flexuose and 
irregularly crenate ; paraphyses very slender, flexuose, sometimes 
branched and septate, slightly clavate and brown at the tips ; 
spores many in the ascus, minute, ellipsoid, 5-4 w long, 1-2 p 
thick ; hymenial gelatine blue then quickly wine-red with iodine. 
—Lichen simplex Dav. in Trans. Linn. Soe. ii. p. 283, t. 28, 
fig. 2 (1794); With. Arr. ed. 3, iv. p.5; Engl. Bot. t. 2152 
(two left-hand figs.). L. simplex Hook. in Sm. Engl. FIL. v. p. 179 
(1833); Tayl. in Mackay F). Hib. ii. p. 124. Rinodina privigna 
S. F. Gray Nat. Arr. i. p. 450 (1821). Acarospora cervina var. 
a aes ee oS re ee a 
