S. F. Gray Nat. Arr. i. p. 501; Hook. Fl. Scot. ii. p. 44 & in
Sm. Fngl. Fl. v. p. 157; Tayl. in Mackay PI. Hib. ii. p. 99
Leight. Angioc. Lich. p. 12, t. 2, f. 2. E. miniatum var. lepto
phyllum Wahlenb. Fl. Suec. p. 875 (1826); Mudd Man. p. 266
Cromb. Lich. Brit. p. 107; Leight. Lich. Fl. p. 410; ed. 3
p. 442.
Distinguished from the species by the small size of the thallus.
Hah. On moist rocks.—Distr. Eare in subalpine or hilly regions,
in N. England, Wales, N. Scotland and S.AV. Ireland.—B. M. Buxton,
Derbyshire; Aberidu, Brecknockshire ; Bala Lake and Llyn Bodlyn,
Merioneth ; Cmnberlaiid ; Loch-na-gat, Ben Lawers, Perthshire ;
Locli Lomondj Dumbartonshire; Killarney Woods, Kerry.
Var. complicatum Th. Fr. I. c. Thallus ascending, composed
of numerous densely csespitose lobes, imbricate and complicate,
with the under surface darker th an in the species.—Dill. I. c.
f. 127a. Lichen miniatus var. complicatus Lightf. Fl. Scot. ii.
p. 858 (1777) pro parte. L. complicatus Swartz in Nov. Act.
Upsal. iv. p. 251 (1784). L. amphibius With. Arr. ed. 3, iv.
p. 66 (1796). L. miniatus Sm. Engl. Bot. t. 593 lower fig. (1799).
Endocarpon complicatum Ach. Meth. p. 128 (1803); S. F. Gray
Nat. Arr. i. p._ 501 ; Hook. Fl. Scot. ii. p. 4 4 ; Grev. Fl. Edin.
p. 329. E. miniatum var. complicatum Wahlenb. PI. Suec. p. 875
(1826); Tayl. in Mackay Fl. Hib. ii. p. 98 ; Hook, in Sm. Engl.
PI. V. p. 156; Leight. Angioc. Lich. p. 11, t. 2, f. 1 & Lich. Fl.
p. 410; ed. 3, p. 442 ; Mudd Man. p. 265 ; Cromb. Lich. Brit,
p. 107.
Exsicc. Leight. n. 167; Mudd n. 256 ; Larb. Lich. Hb.
n. 158.
Hab. On damp rooks, exposed to spray or occasionally inundated.
—Distr. Somewhat frequent throughout the British Isles.—B. M.
L’Etaoq, Jersey; Petit-Bot Bay, Guernsey; St. Minver and near
Penzance, Cornwall; Dartmoor Tors, Devon; near Cirencester, St.
Vincent’s Books and near Cheltenham, Gloucestershire; Barmouth,
Merioneth ; Puffin Island ; Cleveland, Yorkshire; Falcon Clints,
Teesdale, Durham; Craiglockhart near Edinburgh; Bowling, Dumbarton
; Kinnoull Hill, Glen Loohay, Killin, Ben Lawers and
Kenmore, Perthshire; I. of Lismore, Argyll; Fort AVilliam and Invermoriston,
Invernessshire; Craig Guie, Braemar, Aberdeenshire;
Connor Cliffs, Dingle, Killarney, Kerry; Gleneorbot and Dawros
Eiver, Connemara, Galway.
lo rm decipiens A. L. Sm. Lobes of the thallus ascending,
smaller th an in var. complicatum and more compact, more or less
involute and crowded in the centre, spreading a t the periphery.—
Endocarpon miniatum var. decipiens Massal. Bic. Lich. p. 184
(1852).
Hab. On moist rocks.—Distr. Eare in N. England and N. Scot-
'Tand.—B. M. Teesdale, Yorkshire ; south side of Looh Tay, Perthshire.
2. D. aquaticum A. Zahlbr. Krypt. Exsicc. n. 652 (1901).—■
Thallus spreading, polyphyllous, rather thick and coriaceous, the
lobes crowded, flaccid, crenate and incurved, tumid, ascending in
the centre, more flattened a t the circumference, green when wet,
pale to brownish when dry, the under side naked, pale a t first
then darker coloured. Perithecia minute, innate, sometimes
confluent, with slightly prominent brown ostioles ; spores 8 in
the ascus, oblong or ellipsoid, 0,010-16 mm. long, 0,006-9 mm.
thick.—Lichenoides imhricatum luridum Dill. Hist. Muse. p. 224,
t. 30, f. 128 (1741). Lichen aquaticus Weiss PI. Crypt. Fl.
Goett. p. 77 (1770) ; Engl. Bot. t. 594. L. fluviatilis Web.
Spicil. Fl. Goett. p. 265, t. 4 (1778); With. Arr.' ed. 3, iv. p. 67.
L. Weberi Ach. Lich. Suec. IProdr. p. 142 (1798). Endocarpon
Weberi Ach. Meth. p. 128 (1803); S. P. Gray Nat. Arr. i.
p. 501 ; Hook. Fl. Scot. ii. p. 45 ; Grev. Fl. Edin. p. 329.
E. fluviatile DC. Fl. F r. ii. p. 413 (1805) ; Mudd Man. p. 266 ;
Cromb. Lich. Brit. p. 108 ; Leight. Lich. Fl. p. 410 ; ed. 3,
p. 442. E. miniatum var. aquaticum Schær. Spicil. p. 60 (1826);
Hook, in Sm. Eagi. Fl. v. p. 156; Tayl. in Mackay Fl. Hib. ii.
p. 98.
Exsicc. Larb. Lich. Hb. n. 358 & Lich. Cæsar. n. 95.
Approaches var. complicatum of the preceding species in the size
and form of the thalline lobes, but is well distmguished by its thicker
coriaceous character and by the habitat. The lobes, usually rather
large and rounded, are occasionally only from 1 to 0 ' 5 cm. in width
and deeply cut and laciniate.
Hab. On rocks and stones in streams and lakes.—Distr. Eare, but
widely distributed, chiefly in upland districts.—B. M. East coast of
Jersey ; Saints Bay, Guernsey ; St. Breock, Cornwall ; Eiver Teign,
near Keston, Lydford, the Dart Eiver and Ivy Bridge, Devon ; Tewy
Llandyssiel, Cardiganshire ; Harlech Castle and Barmouth, Merionetli ;
Ham, Staffordshire ; Windermere, Westmoreland ; Eglestone and
Teesdale, Durham ; Kincardineshire ; Loch Lomond, Dumbartonshire ;
Appin, Argyll ; Loch Dochart, Loch Tummel and shores of Loch Tay,
Killin, Perthshire ; shores of Loch Linnhe, Invernessshire ; Killarney,
Kerry.
Var. euplocum A. L. Sm.—Thallus coriaceous, minute, mono-
phyllous, affixed to the substratum by a central point, deeply
lobed, the margins crisped and recurved, olive-green when moist,
greyish or brownish when dry.—Lichen euplocus Ach. Lich. Suec.
Prodr. p. 141 (1798). Endocarpon euplocum Ach. Meth. p. 127,
t. 3, f. 4 (1803) ; Borr. in Fngl. Bot. Suppl. t. 2602, f. 2 ; Hook,
in Sm. Engl. Fl. v. p. 157 ; Leight. Angioc. Lich. p. 12, t. 2, f. 3.
E. fluviatile var. euplocum Mudd Man. p. 266 (1861); Leight.
Lich. Fl. p. 411 ; ed. 3, p. 443. E. miniatum var. eMpZociiwi Wahlenb.
Fl. Suec. p. 875 (1826); Cromb. Lich. Brit. p. 107. Verrucaria
euploca Borr. in Engl. Bot. Suppl. I. c. te x t (1831).
A minute variety of the species bearing the same relation to it as
var. leptophyllum does to D. miniatum.
■L