Worcestershire ; Bradgate Park, Leicestershire ; Harhorough Magna,
Warwickshire ; Nannau, Dolgelly, Merioneth ; Abdon and Haughmond
Hill, Shropshire; Ickworth, Suflblk ; Nottinghamshire ; Derbyshire
; Kildale, Cleveland, Yorkshire ; Castle Bernard Park, Bandon,
Cork ; Derryquin, Kerry ; Adare Abbey, Limerick.
Var. saxicola A. L. Sm.—Thallus greyish-green, thin, furfuraceous.
Apothecia black, sessile, greenish-pruinose or naked,
otherwise as in the species. ScMsmatomma premneum var. saxi-
colum Mudd Man. p. 222 (1861). Lecidea premnea f. saxicola
Leight. Lich. FI. ed. 3, p. 365 (1879).
Lxsicc. Leight. u. 185 ; Mudd n. 198 ; Larb. Lich. Hb. n. 73.
Differing mainly in the habitat. Leighton distinguishes two
other saxicolous forms : teicliogena and crenatula (Lecidea premnea
f. teicliogena Nyl. ex Leight. I. c., and f. crenatula Nyl. ex Leight.
I. c.), both with scanty or evanescent thallus, the apothecia naked,
the margin somewhat crenulate or flexuose in the latter.
Hab. On rooks, walls, &c.—Distr. Rare in the Channel Islands,
England and W. Ireland.—B. M. La Moye, Jersey ; Ventnor, I. of
Wight; Nessoliffe, Shropshire; Airyholme Wood, Cleveland, Yorkshire
; Doughruagh Mt., Kylemore, Connemara, Galway.
2. L. abietina Koerb. Syst. Lich. Germ. p. 276 (1855).—
Thallus white or greyish-white, effuse, thin, furfuraceous (K —,
CaCl — ). Apothecia moderate in size or larger, sessile, with a
thickish, prominent margin, black, but thickly whitish- or
pale-yellowish-pruinose ; hypothecium black ; paraphyses slender
conglutinate ; epithecium brownish ; spores acicular-fusiform,
3-septate, 0,035-40 mm. long, 0,004—4 mm. thick ; hymenial
gelatine slightly bluish then wine-red with iodine.^—Lichen
abietinus Ach. in Vet. Acad. Handl. xvi. p. 139, t. 5, f. 7
(1795). Sphæria leucocephala Pers. Syn. Pung. Add. p. xxvii.
(1801) {spermogoniiferous). Verrucaria leucocephala Ach. Meth.
p. 116 (1803); Borr. in Engl. Bot. Suppl. t. 2642, f. 2 ;
Hook, in Sm. Engl. FI. v. p. 152 ; Tayl. in Mackay PI. Hib. ii.
p. 90. Pyrenotliea leucocephala Pr. Lich. Eur. p. 450 (1831) ;
Leight. Angioc. Lich. p. 65, t. 28, ft'. 1 & 2. Lecidea abietina Ach.
Lich. Univ. p. 188 (1810) ; S. P. Gray Nat. Arr. i. p. 468 ; Hook,
in Sm. Engl. PL v. p. 179; Cromb. Lich. Brit. p. 90; Leight.
Lich. PI. p. 330 ; ed. 3, p. 354. ScMsmatomma abietinum Massal.
Bic. Lich. p. 56, f. 102 (1852) ; Mudd Man. p. 223.
Exsicc. Leight. nos. 163 & 164 ; Mudd n. 200 ; Johns, n. 349.
Differs from the preceding in the dense whitish pruina covering
more especially the apothecia. The spermogones (Sphæria leucocephala)
which have rather large spermatia (0,012-16 mm. long,
0,003-4 mm. thick), are sometimes alone present, and resemble small
whitish-grey globules. Leighton (Angioc. Lich. pp. 66 & 67, t. 28,
ff. 6 & 7) describes two somewhat similar forms : Pyrenothea rudis
(Exsicc. n. 102 as P . vermicellifera) and P. aphancs (Verrucaria
rudis and V. aphanes Borr. Engl. Bot. Suppl. t. 2642, ff. 1 and 8
(1880) ). These are also quoted by Hooker in Sm. Engl. FL v. p. 151,
affinity of F. aphanes with V. leucocephala; but
sm a lli “ ^onr ; the spermatia smaller, about 0,005 mm. long and 0,001-2 mm. thick. are li s o much
F n S trees.-DfrZr. Eather rare in S. and N.
h S s H D'^rtmoor, Devon; New Forest,
Hants Henfield Sussex; lokworth, Suffolk; Stogdale and Wester-
Kilkrney S y Eagle’s Nest and Croghan,
Porm incrustans Oliv. Exp. Syst. Lich. ii. 1, p . 46 (1900).—
a usgreyishj thicker th an in the species.—Cyphelium incrustans
Ach in Vet. Acad. Handl. 1817, p. 230, t. 8, f. 6. Lecidea
abietina f. incrustans Nyl. Lich. Scand. p. 241 (1861) ; var.
incrustans Cromb. in Journ. Bot. xx. p. 275 (1882).
S mosses and hepatics on rooks.-DfsZr. Rare in
S. England.—P. M. Near Bridge, Sussex.
3 L. mecebrosa Fr. Syst. Orb. Veg. p . 288 (1825); Koerb.
Syst. Lich. Germ. p. 277.—Thallus effuse, thin, pulverulent or
subgranulose, white ( K - , C aC l- ) . Apothecia small, black,
p ane and thinly margined, a t length convex and immarginate
white-prumose, black within ; hypothecium brownish-black ;
paraphyses concrete; spores fusiform, 1-5-septate; 0,016-
?>*403-4 mm. thick ; hymenial gelatine tawny-wine-
n 7oq\ ^ ’4^ lodme.— Lichen amylaceus Ehrh. PI. Crypt, n. 303
(1793), nomen. Opegrapha illecebrosa Duf. in Journ Phys
T?-- ^ 8 1 8 ) (fide Pries). ScMsmatomma amylaceum
Massal. Bic Lich. p. 56, f. 103 (1852) ; Mudd Man. p. 222.
D e c if a amylacea Nyl. in Act. Soc. Linn. Bord. sér. 3, i. p. 383
n o in L T farinosa Ach. Lich. Univ. p. 187
(1810) L. farinosa Cromb. Lich. Brit. p. 90 (1870) (excl.
subsp.) ; Leight. Lich. PI. p. 340 ; ed. 3, p. 365.
Hab On old trunks of imes.—Distr. Rare in S. England.—A M
Bramble Hill, New Forest, Hants.
n Dilleniana Koerb. Syst. Lich. Germ. p. 276 (1855).—
Thallus effuse, thinnish, soft, granular-areolate, verrucose or
wrinkled, greyish-white often somewhat white-pruinose i(K +
yellowish CaCl+orange-yellow). Apothecia ra th e r small, black
appressed sessile, plane, marginate, white pruinose or naked, thé
margin thin, entire, or flexuose ; hypothecium blackish-hrown ;
paraphyses slender, coherent; epithecium brownish; spores
narrowly fusiform, 3-septate, 0,023-32 mm. long, 0,005-6 mm.
tn ic k , hymenial gelatine pale-bluish then tawny-wine-red with
iodine.—Lichen Eillenianus Ach. Lich. Suec. Prodr. p. 57 t 1 V Fngl. Bot. t. 1138 (1803)? (seé
also p. 137), Lecidea Dilleniana Ach. Meth. p. 55 (1803) •
. 4; P- 332, ed. 3, p. 352 & in Grevillea ii. p. 172,’
t. 2b, t. 1. L. farinosa subsp. Dilleniana Cromb. Lich. Brit.