PARMELIA| PARMELIACE® Lays 
the examination of the types by Wainio (1. c.) has definitely decided 
the point of nomenclature. In P. perforata Ach. the lobes are naked 
at the edge of the under surface. 
Hab. On mossy rocks and the trunks of old trees chiefly in mari- 
time districts.—Distr. Rather uncommon in the Southern and 
Western counties of the British Isles.—B. M. Rozel, Jersey ; Alder- 
ney; Penzance and Withiel, Cornwall; South Brent, Devon; Lyme 
Regis, Dorset; Carisbrooke, I. of Wight; Nannau, Dolgelly and 
Tan-y-Croes, Merioneth; Barcaldine, Argyll; Dunkerron, Kerry; 
near Kylemore, Connemara, Galway. 
24. P. levigata Ach. Syn. Lich. p. 212 (1814).—Thallus 
suborbicular, horizontal, lobate, the lobes sinuate at the axils, 
multifid, narrow or rather broad, spreading (divaricate), partly 
imbricate, often with turgid soralia at the apices, glaucous-white 
or whitish ; beneath blackish, densely rhizinose up to the margin 
(K+ velow, CaCl, medulla K (CaClf)+red). Apothecia moderate 
in size or large, reddish-brown, the margin becoming crenulate or 
sorediate ; spores 6-8 in the ascus, 17-23 p long, 10-14 p thick 
with a stout epispore.—S. F. Gray Nat. Arr. i. p. 443 ; Hook. 
FI. Scot. ii. p. 55 & in Sm. Engl. Fl. v. p. 200; Tayl. in Mackay 
Fl. Hib. ii. p. 148; Cromb. Lich. Brit. p. 33; Leight. Lich. FI. 
p. 189; ed. 3, p. 128. P. sinuosa var. levigata Scher. Enum. 
p. 43 (1850); Mudd Man. p. 95. Lichen levigatus Sm. Engl. 
Bot. t. 1852 (1808). 
Exsice. Cromb. n. 141; Larb. Cesar. n. 64 & Lich. Hib. 
n. 124; Mudd n. 69. 
Distinguished by the sinuous rounded axils and the rather blunt 
square tops of the lacinie. The apothecia are very rare and imperfect. 
The spore sizes have been taken from Nylander’s description (Syn. 
Lich. p. 384), there being no material wherewith to verify them. 
Spermogones are more frequent; they are minute, blackish with 
spermatia about 5-7 p long, 1 p» thick. 
Hab. On rocks, boulders, and trunks of trees, chiefly in maritime 
aud mountainous districts.—Distr. General and not uncommon in 
the Southern and Western districts of the British Isles.—B. M. 
Jersey; Guernsey; Penzance and near Withiel, Cornwall; Okehamp- 
ton, Lustleigh Cleeve, Dartmoor, Lynton and Bolt Head, Devon ; 
New Forest and Bournemouth, Hants; near Dolgelly, Aberdovey, 
and Barmouth, Merioneth; Llanberis and Beddgelert, Carnarvon- 
shire; Beaumaris, Anglesea; Asby, Cumberland; Inverary and Bar- 
caldine, Argyll; Trossachs, Perthshire; Ben Nevis, Invernessshire ; 
Glen Ach-na-Shilloch, Rossshire; Gougaumbara, Cork; Killarney, 
Kerry ; Connemara, Galway; Achill Island, Mayo. 
Var. dissecta Oliv. Lich. d’Eur. i. p. 189 (1907).—Thallus 
yellowish, small, deeply dissected and isidiiferous ; beneath with 
short rhizine (medulla K(CaCl) + red). Apothecia unknown.— 
Parmelia dissecta Nyl. in Flora Ixv. p. 451 (1882) ; Cromb. in 
Grevillea xv. p. 75 (1887) & Monogr. i. p. 247. 
Recorded by Nylander as a saxicolous lichen rare in Ireland. A 
corticolous specimen collected by H. B. Holl in N. Wales, and deter- 
