144 CYCLOCARPINE® [PARMELIA 
Britain and Iveland.-—B. M. Withiel, Cornwall; New Forest, Hants; 
Danny and Tilgate, Sussex; Gad’s Hill, Kent; Cricklade, Wiltshire ; 
Pembridge, Herefordshire ; Crowle, Worcestorhines near Dolgelly, 
Merioneth ; Island of Anglesea ; Ayton, Cleveland, Yorkshire; Eggle- 
stone, Durham ; near Kendal, Westmoreland ; New Galloway, Kirk- 
cudbrightshire ; Largs, Ayrshire ; Pentland Hills, near Edinburgh ; 
Appin, Argyll; Glen Calliach and Glen Lochay, Perthshire; 8. of 
Fort William, Invernessshire ; Kilravock, Nairnshire ; Applecross, 
Rossshire ; Glencar and Mangerton, Kerry; Killery Bay, Connemara, 
Galway. 
33. P. omphalodes Ach. Meth. p. 204 (1803).—Thallus 
orbicular, sometimes widely spreading, rather smooth and shining, 
laciniate-lobate, the lobes generally narrow, crowded variously 
subtruncate or retuse at the apices, dark-brown to purplish- 
black, often with whitish dotted reticulations ; beneath densely 
black-rhizinose (K + peli, than rea, CaCl—). Apothecia often 
numerous, moderate in size or large, up to about 2 cm. across, 
dark reddish-brown, the amphithecium and margin thin and 
light-coloured ; spores 12-16 p» long, 6—7 » thick—S. F. Gray 
Nat, Arr. i. p. 440; Hook. Fl. Scot. ii. p. 53 & in Sm. Engl. 
Fl. v. p. 199; Tayl. in Mackay Fl. Hib. ii. p. 145; f. czsio- 
pruinosa Nyl. ex Stiz. in St. Gall Nat. Ges. 1876, ?P. 206 ; 
Cromb. in Journ. Bot. lxv. p. 272 (1882) & Monogr. i. p. 214. 
P. saxatilis var. omphalodes Fr. Lich. Eur. p. 62 (1831) ; Mudd 
Man. p. 95; Cromb. Lich. Brit. p. 34; Leight. Lich. Fl. p. 138 ; 
ed. 3, p. 127 ; var. levis Nyl. Syn. Lich. i. p. 389 (1860). 
Subsp. omphalodes f. czxsio-pruinosa Ny]. ex Norrl. in Not. Siillsk. 
Faun. & Fl. Fenn. Forh. xiii. p. 324 (1873). P. suleata var. 
levis Cromb. in Journ. Bot. lviii. p. 140 (1875) & Monogr. i. 
p. 242. Lichenoides saxatile tinctorium, foliis pilosis purpureis 
Dill. in Ray Syn. ed. 3, p. 74, n. 70 (1724) & Hist. Muse. p. 185, 
t. 24, fig. 80 (1741). Lichen omphalodes L. Sp. Pl. p. 1143 
(1753); Huds. Fl. Angl. p. 446; Lightf. Fl. Scot. ii. p. 818; 
With. Arr. ed. 3, iv. p. 34; Engl. Bot. t. 604. 
Exsice. — n. 18; Croall nos. 389, 390; Dicks. Hort. Sicc. 
fasc. xvii. n. 22; Johns. n. 188 ; Larb. Cesar. n. 19; Leight. 
n. 7; Mudd n. 67. 
Closely allied to P. saxatilis, of which along with P. sulcata it is 
frequently classified as a variety. It differs in the more shining 
generally much darker thallus, less marked reticulations, and in the 
entire absence of soredia or isidia. P. sulcata var. levis is similar, 
but somewhat lighter in colour. Occasionally the thallus is bluish- 
white as if pruinose (f. cwsioprwinosa). It often spreads extensively, 
covering large boulders. Spermogones are not uncommon. 
Hab. On rocks, boulders, ete., in maritime, upland and alpine 
regions.— Distr. Widely distributed and common throughout the 
British Isles, especially in hilly regions.—B. M. Guernsey ; Alderney ; 
Jersey; near Penzance, Camelford, Temple Moor, and Helminton, 
Cornwall; Lynton, Dartmoor, Hay Tor and Lustleigh Cleeve, 
Devon ; Malvern Hills, Worcestershire ; Barmouth, Rhewgreidden, 
