Dolgelley, Merionetli; Falls of Clyde, Lanarkshire; Barcaldine,
Argyll; Dunkeld, rertlisliire ; Old Dromore and Cromaglown, Kil-
lamey, Kerry ; Dromoland, Clare ; Adare, Limerick; Shane’s Castle,
Antrim.
Var. pruinata A. L. Sm.—Thallus whitish, sometimes furfuraceous.
Apothecia blackish, covered with a white ^pruina.—
Vars. concolor and microstigma Mudd Man. pp. 249 & 250 (1861).
Spiloma gregarium vars. concolor and microstigma Turn. V
Borr. I. c. Coniocarpon cinnaharinum vars. concolor and mi-
crostigma Leight. I. c. Arthonia cinnaharina var. pruinata Del.
ex Nyl. Lich. Scand. p. 257 (1861); Cromb. Lich. Brit. p. 102 ;
Leight. Lich. El. p. 399; ed. 3, p. 422 incl. ff. concolor and
microstigma.
Exsicc. Leight. n. 251.
The white powdery apothecia are often arranged in a stellate form,
sometimes they are solitary and depressed (var. microstigma), when
the thallus also is white suffused it is var. concolor.
Hab. On trees in S. and N. England and in S.W. Ireland.—
B. M. Shanldm, I. of Wight; near Becky Falls, Devon; near Lyndhurst,
New F o re st; St. Leonard’s Forest, Sussex; near Dorking,
Surrey; Twycross, Leicestershire; Easby Wood, Airyholme Wood
and Kildale, Cleveland, Yorkshire ; Eagle’s Nest, Killarney, Kerry.
Var. anerythrea A. L. Sm.—Thallus whitish. Apothecia
brownish-black, prominent, naked.— Arthonia cinnaharina yar.
anerythrea Nyl. I. c. ; Cromb. Lich. Brit. p. 102 ; Leight. Lich.
Fl. p. 400; ed. 3, p. 423.
Differs from the species and the other varieties in the round
prominent apothecia without any pruina.
Hab. On trees.—DisZr. Eare in S. England and in S. and W.
Ireland.—A. M. Near Becky Falls, Devon; near Lyndhurst, New
Forest, H a n ts ; Castle Bernard and Crosshaven, Cork; Glencar,
Kerry.
5. A. astroidestera Nyl. in Elora Ivii. p. 13 (1874).—Thallus
white or cream-coloured, thin, smooth. Apothecia dark-brown,
innate, slender, elongate, radiate or stellate ; spores 3-5-septate
(usually 4-septate), colourless, 0,021-26 mm. long, 0,007-8 mm.
th ic k ; hymenial gelatine blue with iodine.—Cromb. in Journ.
Bot. xii. p. 149 (1874); Leight. Lich. Fl. ed. 3, p. 424._ A.
armoricana Cromb. Lich. Brit. p. 103 (1870) (non Nyl.) ; Leight.
Lich. Fl. p. 401. A. punctiformis Mudd Alan. p. 247 (1861) pro
parte ? (non Ach.).
The specimens collected hy Larbalestier and Crombie, now in the
British Museum, have 4-celled spores, the upper cell being larger th an
the others, and resembling the spores of A. gregaria; the apothecia
are partly white-suffused, and have no trace of the red-colouring
matter usually to be found in th a t species. Mudd describes the
spores of his A. punctiformis as 8-septate, the upper cell largest,
Hab. On holly or beech.—AfsZr. Eare in S. England and S.
Ireland.—A. M. Lyndhurst, New Forest, Hants.
6. A. elegans Ach. Lich. Univ. p. 135, t. 1, fig. 1 (1810)
^ ^e* -K k ad . Handl. xvii. n. 6
p. 19.—lh a llu s whitish, thin. Apothecia dark-coloured, och-
raceous-pruinose, roundish or somewhat difform; spores obovate,
o-septate upper cell largest, 0,015-18 mm. long, 0,007-8 mm.
tfuck.—A. ochracea Duf. in Journ. Phys. Ixxxvii. p. 205 (1818) •
p.T 1n0e2 ; fLe ight. Lich. El. p. 3P-9 4; ed. 3, p. 418. ^ich. Brit!
apothecia and in the smaller
spores Almquist fails to note that the spores as figured by
Massalongo (Gomocarpon ochraceum Eic. Lich. p. 47, f. 83) have the
upper cell largest, as in A. gregaria; in the specimen from Glenoar
long !nd mm.
G le S i ; K e rry r® '-'’^'®'"’ M.
Algal cells Trentepohlia. Apothecia blackish; spores 1- or
more-septate.
Spores l-septate.
7. A. aspersella Leight. in Grevillea i. p. 60, t. 4, f. 4 (1872).
Thallus in patches, effuse, pale yellowish. Apothecia very
minute scattered, punctiform, linear, angular, sometimes confluent
blackigh-brown, hymenium K - ; spores obovate, colour-
Fich. IFfiP. eud . 3Q , p. 415. fe ro a d .-Lei^ght.
Somewhat similar to A. didyma, but differs in the darker-coloured irsSrs “ ““
Hah. On holly.—Bistr. Eare in Wales.—A. M. Canel Avtbocr
Merioneth; Gwydir Woods, Bettws-y-Coed and Trefriw, C a r n a i i
8. A. galactites Duf. in Journ. Phys. Ixxxvii. p 203 (1818)_
Thallus white, thin, smooth. Apothecia small, dark-brown
punctiform, round or oblong; spores colourless, ovate-oblong!
1-septate 0,012-14 mm. long, 0,004 mm. th ic k ; hymenial
gelatine blue then sordid-wme-red with iodine.—A. punctiformis
var. gatachna (errore pro galactites) Ach. Lich. Hniv p 141
(1810); Verrucaria galactites DC. El. l+anc. v. p. 315 (I’s l ) .
Distmguished by the white thallus. The spores are rather broad
above, tlie lower cell tapering downwards,
Hab On trees.—AfsZr. Eare in S. and N. England.—A M Tor
quay, Devon; L;^nmgton, Hants; Hatfield Peverel, Essex;' nea!
Ayton, Cleveland, Yorkshire. ’ ^
P 2