142 CYCLOCARPINEA | PARMELIA 
Fl. Hib. ii. p. 149; Mudd Man. p. 102; Cromb. Lich. Brit. 
p. 34 & Monogr. i. p. 249; Leight. Lich. Fl. p. 140; ed. 3, 
p. 129. Lichen multifidus Dicks. Pl. Crypt. fase. iii. p. 16, t. 9, 
fig. 7 (1793). With. Arr. ed. 3, iv. p. 28. D. incurvus Pers. in 
Ust. Ann. Bot. vii. p. 24 (1794). 
Distinguished from allied species in the ineurved apices of the 
lobes, and generally in the gnarled and twisted aspect of the whole 
plant. Apothecia are rare, but spermogones are frequent, with 
spermatia 5-7 long, 1 p thick. 
Hab. On granite rocks and boulders in subalpine and alpine 
places.— Distr. Local and rare in 8.W. Ireland and §. Scotland, more 
frequent among the Grampians.—b. M. New Galloway, Kirkeud- 
brightshire ; Craig Coinnoch, Ben-naboord, Morrone and Upper Glen 
Dee, Braemar, Aberdeenshire. 
ce. Thallus dark-green, olivaceous or brown. 
30. P. acetabulum Dub. Bot. Gall. ii. p, 601 (1830).—Thallus 
orbicular, coriaceous-membranaceous, smooth or wrinkled, lobate, 
dark-green or dull-olivaceous, the lobes imbricate, rounded, 
appressed at the circumference, ascending, crumpled or undu- 
lating in the centre; beneath pale-brown, sparingly rhizinose 
(K 5 yettowish, then rea, CAC1-). Apothecia becoming rather large, 
brownish-red, the margin crenulate, inflexed; spores 12-16 p 
long, 8-10 » thick—Mudd Man. p. 99; Cromb. Lich. Brit. 
p. 35; Leight. Lich. Fl. p. 136; ed. 3, p. 125. P. corrugata 
Ach. Meth. Lich. p. 215 (1803); 8. F. Gray Nat. Arr. i. p. 438 ; 
Hook. in Sm. Engl. Fl. v. p. 201. Lichenoides acetabulis cutaneis 
et rugosis Dill. Hist. Muse. p. 185, t. 24, fig. 79 (1741). Lichen 
acetabulum Neck. Delic. Gallo-Belg. p. 506 (1768). L. corrugatus 
Sm. in Trans. Linn. Soc. i. p. 83, 1791 & Engl Bot. t. 1652. 
Exsicc, Cromb. n. 142; Leight. n. 362. 
Distinguished by the dull dark green or brown colour of the 
corrugate thallus. Apothecia are rather rare; spermogones are 
abundant, with spermatia about 7 » long, 1 » thick. 
Hab. On the trunks of old trees in woods and parks in lowland 
districts. —Distr. Not general nor common throughout England, 
rare in Scotland, not seen from Ireland.—B. M. Okehampton, Devon ; 
near Netley Abbey, Hants; St. Leonard’s Forest, Poyning’s Hill, 
Hayward'’s Heath, Bramber Castle and Beeding Priory, Sussex ; 
Maidstone and Broome Park, Kent; near Chelmsford and Epping 
Forest, Essex; Somerford Keynes, Wiltshire; near Cirencester and 
lairford, Gloucestershire; near the Ketch, Worcestershire ; Rendham 
and near Bury, Suffolk; Harboro’ Magna, Warwickshire; near 
Buckingham; Nesscliff, Shropshire; Ayton and Stokesley, Cleve- 
land, Yorkshire ; Auldbar, lorfarshire. 
31. P. olivacea Ach. Meth. p. 213 (1803).—Thallus orbicular, 
appressed, lobate, wrinkled, olive- or deep umber-brown, the 
lobes plane rounded and crenate ; beneath dark-brown, sparingly 
