46 COLLEMACTI. [coLLEMA. 
Var. 3. pulposulum Nyl. ex Cromb. Journ. Bot. 1874, p. 147.— 
Thallus smaller, granuloso-lobulate, scattered or but little developed. 
Apothecia rather small, numerous; spores oblong or fusiformi-oblong, 
8-septate, with 1 or 2 longitudinal septules, 0,020-28 mm. long, 
0,007-0,010 mm. thick.—Leight. Lich. Fl. ed. 3, p. 19.—Collema 
pulposulum Nyl. Act. Soe. Linn. Bord. xxv. (1864) p. 7. 
A distinct variety well characterized by the granulose, dispersed thallus, 
and the form of the spores, It is much smaller than the type, though 
externally similar. 
Hab, On old walls in shady upland situations.—Distr, Local and scarce 
in W. England, though no doubt overlooked elsewhere.—B. M.: Near 
Cirencester, Gloucestershire. 
11. CG. tenax Ach. Syn. (1814) p. 314.—Thallus imbricato- 
lobed, thickish, dark-glaucous or dark-greenish ; lobes round, obtuse, 
inciso-crenate or subpalmate at the margins (I+reddish). Apo- 
thecia moderate, innate, concave, reddish, the margin entire, scarcely 
. prominent; spores ovoid or oblong, 3-septate, with a longitudinal 
septum, 0,018-25 mm. long, 0,009-10 mm. thick—Sm. Eng. Fl. 
v. p. 209; Mudd, Man. p. 39; Cromb. Journ. Bot. 1874, p. 333.— 
Collema pulposum var. tenax Cromb. Lich. Brit. p.4; Leight. Lich.. 
Fl. p. 19, ed. 8, p. 19. Enchylium tenaw Gray, Nat. Arr. i. p. 397. 
Lichen tenax Swrtz. N. Act. Ups. iv. (1784) p. 249.—Brit. Hws. : 
Leight. n. 105, 290 ; Mudd, n. 1; Larb. Lich. Hb. n. 201. 
Distinguished from C. pulposum by the inciso-dentate or subpalmate 
thalline lobes, the innate apothecia, the less prominent receptacle, the 
larger spores, and the reaction with iodine. The apothecia are usually 
scattered and not numerous. 
Hab. Among mosses on rocks, and on the bare ground in upland 
districts.—Distr. Local and rather scarce where it occurs, throughout 
England, in S. Wales, the S. and W. Highlands, Scotland, and in 
N.W. Ireland.—B. M.: Runton and Cromer, Norfolk; near Ightham, 
Kent; Reigate, Surrey; Luccombe, Isle of Wight; the Mendips, Somer- 
setshire; Hathrop Castle, Gloucestershire; near Bewdley, Claines, and 
Malvern, Worcestershire; Pentregaer, Oswestry, Shropshire; Tenby, 
Pembrokeshire; near Ayton, Oleveland, Yorkshire; near Brigsteer, 
Westmoreland; Keswick, Cumberland. Appin and Island of Lismore, 
Ayrgyleshire; Killin, Perthshire. Kylemore, co. Galway. 
Var. 3. coronatum Koerb. Par. (1865) p. 413.—Thallus rather 
thinner and more appressed ; apothecia sessile, plane or slightly con- 
vex, with subentire margin, often large and confluent.—Cromb. Journ. 
Bot. 1882, p. 272.—Collema pulposum var. cristatum Mudd, Man. 
p- 39. Collema cristatum Sm. Eng. Fl. v. p. 208; Tayl. in Mack. 
Fl. Hib. ii. p. 108. Lichen cristatus Huds. Fl. Angl. p. 447; 
Lightf. Fl. Scot. ii. p. 821; With. Arr. ed. 3, iv. p. 75. Lichenoides 
gelatinosum folvis imbricatis et cristatis Dill. Musc. 140, t. 19. f. 26, 
A, B,D. Lichenoides foliis pilosis crassioribus, obscure virentibus 
Dill. in Ray, Syn. 74. 68. 
