58 CYCLOCARPINEZ [COLLEMA 
or dull reddish-brown, scattered, sessile, concave, becoming nearly 
plane, with entire margin; paraphyses slender, free but con- 
glutinate above in a yellow mucilage ; spores 8 in the ascus, 
broadly fusiform or ovoid, 3-septate with one or more cells 
longitudinally septate, 22-27 p long, 10-15 yp thick—dC. der- 
matinum Ach. Lich. Univ. p. 648 (1810)? Borr. in Engl. Bot. 
Suppl. t. 2716, fig. 2 (two upper figs.) (1831); Hook. in Sm. 
Engl. Fl. v. p. 212; Mudd Man. p. 36. C. auriculatum subsp. 
granosum Nyl. ex Cromb. in Grevillea xv. p. 11 (1886) & 
Monogr. i. p. 43. Lichenoides gelatinosum atro-virens, auriculatum 
et granosum Dill. Hist. Muse. p. 140, t. 19, fig. 24 (1741). 
Lichen granosus Scop. Fl. Carn. ed. 2, ii. p. 397 (1772) ; Wulf. in 
Jacq. Coll. ii. p. 131, t. 10, fig. 2 (1789). L. granulatus Huds. 
Fl. Angl. ed. 2, p. 536 (1778) pro parte ; With. Arr. ed. 3, iv. 
p- 73 (non Engl. Bot. t. 1757). Leptogium dermatinum Leight. 
Lich. Fl. p. 29 (1871); ed. 3, p. 32. 
Characterized by the large laciniate subcoriaceous granular lobes. 
Collema granosum has been taken to represent the species as being of 
earlier date than C. awriculatwm. There is some confusion as to the 
identity of Lichen granulatus Huds. with Lichen granosus. Both of 
them are based on the plant collected and described by Dillenius, 
which was determined by Crombie as identical with this species 
(Monogr. i. p. 43), though in an earlier publication he had referred it 
to C. furvum (Journ. Linn. Soe. xvii. p. 566 (1880) ). 
Hab. On calcareous rocks and walls.—Distr. Local and searce in 
S. and W. England, N. Wales and S.W. Ireland.—B. M. Poynings, 
Sussex; Chudleigh, Devon; Cheddar Cliffs and opposite St. Vincent’s 
Rocks, Bristol, Somersetshire; Pentragaer, Oswestry, Shropshire ; 
Llangollen, Denbighshire ; N. Wales. 
Var. auriculatum A. L. Sm.—Lobes of the thallus rather 
larger, somewhat imbricate, irregularly curved and bent, rounded 
and crenate, but not incised and laciniate, otherwise as in the 
species.—Collema auriculatum Hoffm. Deutschl. Fl. ii. p. 98 
(1795); Cromb. in Journ. Bot. viii. p. 96 (1870) ; Leight. Lich. 
Fl. p. 21; ed. 3, p. 17 (excl. var. pinguescens) ; var. membranacea 
Krempelh. Lich. Fl. Bay. p. 92 (1861) ; £. membranacea Cromb. 
in Journ. Bot. xii. p. 333 (1874) ; Leight. Lich. Fl. ed. 3, p. 17. 
C. dermatinum Borr. in Engl. Bot. Suppl. t. 2716, fig. 2 
(lower fig.). 
Exsice. Johns. n. 202. 
Distinguished from the species by the larger more shell-like 
auriculate lobes which are often wrinkled and densely covered with 
isidiose granules. 
Hab, On rocks and old walls, chiefly calcareous, Distr. Local 
and scarce in W. Central and N. England, N. Wales, S.W. Highlands 
and §. Grampians, Scotland.—B. M. Paignton, Devon; Sherbrook 
and Cole Heath, Buxton, Derbyshire ; Grassington, Yorkshire ; 
Keswick and Ashgill Force, Alston, Cumberland; Appin, Argyll; 
Killin, Perthshire. 
