PANNULARIA. | LECANO-LECIDEEI. 341 
ally pale or whitish ; spores ellipsoid, simple, 0,010-17 mm. long, 
0,005-8 mm. thick ; hymenial gelatine somewhat bluish and then 
wine-red with iodine.—Cromb. Grevillea, xiii. p. 48.—Pannaria 
microphylla Mudd, Man. p. 123; Cromb. Lich. Brit. p. 42; Leight. 
Lich. Fl. p. 166, ed. 3, p. 152. Lichen microphyllus Sw. Vet Ak. 
Handl. (1791) p. 301. Lichen escharoides Eng. Bot. t. 1247? Le- 
cicdea coronata (3. escharoides Sm. Eng. Fl. v. p. 182.—Brit. Ews. : 
Larb. Cesar. n. 71; Lich. Hb. n. 89. 
Closely allied, as already intimated, to the preceding, but with an in- 
ferior type of thallus and smaller spores. ‘The thallus is often effuse, and 
at times forms a thickish diffract crust. The apothecia are either scat- 
tered or approximate, somewhat plane or usually convex, rarely in a young 
state lecanoroid. 
Hab. On rocks, seldom on the ground, in maritime districts.— Distr. 
Local and rare in the Channel Islands, 8.W. England, the S.W. High- 
lands of Scotland, and N.W. Ireland.—B. M.. Rozel, Island of Jersey ; 
Islands of Sark and Guernsey. Near Penzance, Cornwall. Barcaldine, 
Argyleshire. Connemara, co. Galway. ' 
Form cheilea Nyl. ea Cromb. Grevillea, xviii. (1889) p. 43.— 
Thallus dark-cervine, the squamules concolorous at the margins. 
Apothecia subinnato-sessile, somewhat plane, crowned by the 
thallus; spores ellipsoideo-oblong, spuriously 1-septate.—Pannaria 
microphylla var. cheilea Ny]. Syn. ii. p. 35. Pannaria cheilea Nyl. 
in Mudd, Man. (1861) p. 126; Cromb. Lich. Brit. p. 43; Leight. 
Lich. Fl. p. 169, ed. 3, p. 155. AMuassalongia cheilea Mudd, Man. 
p. 126. 
Differs from darker states of the type in the margins of the squamules 
not being whitish, in the apothecia being lecanoroid, though often at 
length biatorine, and in the spuriously septate spores. It is scarcely, ac- 
cording to Nylander in Jité.,to be considered as a distinct variety, but only 
as a form. 
Hab. On damp schistose rocks in maritime districts.—Distr. Very local 
and scarce in the S.W. Highlands of Scotland and in 8.W. Ireland.— 
B.M.: Loch Creran, Barcaldine, Argyleshire. Western Blasquet Island 
and Blackwater Bridge, co. Kerry; Kilkee, co. Clare. 
3. P. triptophylla Nyl. ew Stiz. St. Gall. Nat. Ges. 1882, p. 336. 
—Thallus thinly microlepideo-granulose or minutely and crowdedly 
coralloideo-squamulose, greyish-brown or leaden-greyish; bypo- 
thallus bluish-black or blackish. Apothecia biatorine, small, plane 
or convex, brown or reddish-brown, usually paler at the margin, 
internally brownish-black ; spores ellipsoid, simple, 0,012-19 mm. 
long, 0,006-8 mm. thick; hymenial gelatine intensely bluish 
with iodine.--Cromb. Grevillea, xii. p. 58.—Pannaria triptophylla 
Leight. Lich. Fl. p. 167, ed. 3, p. 152; Mudd, Man. p. 123; Cromb. 
Lich. Brit. p.42. Lepidoma triptophyllum Gray, Nat. Arr. i. p. 462, 
Lecidea microphylla Hook. FI. Scot. ii. p. 41. Placodiwm micro- 
phylum Sm, Eng. Fl. v. p. 198. Parmelia plumbea §. microphylla 
