COLLEMA. | COLLEME1. 49 
\ 
Hab, On sandy soil in maritime tracts.—Distv. Loca] and rare; the 
oo ‘ica and 8.W. England.—B. M.: Coast of Herm. St. Minver, 
ornwall, 
14. C. concinnum Flot. Linnea, 1849, p. 361; 1850, p. 157. 
—Thallus somewhat small, orbicular, variously inciso-lobed, olive- 
brown or dark-glaucous ; lobes narrow, round, more or less ascending 
or depressed. Apothecia submoderate, plane, reddish, the margin 
entire; spores ovoid, 3-septate or submurali-locular, 0,014—-20 mm. 
long, 0,006-9 mm. thick.—Cromb. Journ. Bot. 1882, p. 272. 
From C. crispum this is distinguished by the smaller thallus and spores. 
The British specimens belong chiefly to 8. deplanatum Flot., with the 
lobes dopieated, but this is evidently a mere state. The apothecia are 
numerous, nearly moderate, or smaller, with the margin sometimes in- 
curved. 
Hab. On rocks and wall-tops in maritime districts.—Distr. Local and 
rare in 8.W. England, N. Wales, and W. Ireland; but no doubt occurring 
elsewhere.—B. M.: Plymouth, S. Devon; near Penzance, Cornwall ; 
Barmouth, Merionethshire. Achanure Castle, co. Galway. 
15. C. cheileum Ach. Lich. Univ. (1810) p. 630.—Thallus imbri- 
cato-lobed or crenato-granulose, greenish-black or dark-olive; lobes 
round, or minute and crenate, variously divided. Apothecia mode- 
rate, or somewhat large, plane, dark-reddish, the thalline margin 
granulato-crenate ; spores oblongo-ellipsoid, 3-septate or submurali- 
divided, 0,025-40 mm. long, 0,010-16 mm. thick.—Sm. Eng. FI. 
v. p. 208; Mudd, Man. p. 40, t.i.f.4; Cromb. Lich. Brit. p. 6; 
Leight. Lich. Fl. p. 20, ed. 3, p. 20.—Lichen cheileus Ach. Prodr. 
(1798) p. 184. nchylium crispum Gray, Nat. Arr. i. p. 396. 
Lichen crispus Huds. Fl. Angl. p. 447; Lightf. Fl. Scot. ii. p. 820 ; 
With. Arr. ed.3, iv. p. 76. Lichen marginatus Bernh., Dicks. Crypt. 
fasc. iv. p. 25. Lichenoides gelatinosum atro-virens, crispum et 
rugosum Dill. Muse. 139, t. 19. f. 23.—Hudson’s name, Lichen cris- 
pus, has priority, but to set aside the established name of Acharius 
would lead to great confusion.— Brit. Ews.: Mudd, n. 3; Larb. 
Cesar. n. 52, Lich. Hb. n. 203. 
The thallus is occasionally somewhat effuse, and varies in the character 
of the lobes, being eitherdeterminate and orbicular, lobate, with the lobes 
very small in the centre and explanate at the circumference, or some- 
times little developed and crenato-granulose. ‘lhe gonimia are usually 
scattered, though some are occasionally moniliform, and the filaments 
are but scanty. The apothecia are chiefly central, with the margin 
persistent. 
Hab. On the mortar of old walls, rarely on calcareous rocks, chiefly in 
upland situations.—Distr, General and usually common in the Channel 
Islands, and most parts of Great Britain and Ireland, but frequently 
parren. —B. M.: Quenvais, Island of Jersey. Thetford, Norfolk; Wal- 
thamstow,.Essex ; Shanklin, Isle of Wight; near Plymouth, Devonshire; 
St. Minver, Cornwall ; Bathampton Downs, Somersetshire ; Milton, Ox- 
fordshire; near Cirencester, Gloucestershire; Cradley, near Malvern, 
Worcestershire ; Oswestry, Shropshire; near Barmouth, Merioneth ; 
EB 
