■y ’ :
i
Applecross, lloss-slúre.
Kerry.
Gari-igaloe, co. Cork; Miicln-iiss, Killarney, co.
Form 1. virescens NyL Bull. Soo. Bot. t. xiii. (1806) p. 306.—
Thallus palc-grecnish. Apothecia scattererl, the margin tliin, entire,
grecuish.—Form virideseens Cromb. Journ. Liun. Soo. Bot. xvii.
p. 572. Lichen parietinus var. 2, AVith. A rr. od. 3, iv. p. 34.
Differs from ilie type in the colour of the thallus, 'which evidently
results from the habitat, since in tlie herbarium it again partially reverts
to the normal colour. The reaction witli K is also less distinct or scarcely
any. The apotliecia are few, but it is rarely seen fertile.
Ilah. On the trunks of trees iu moist shady places in upland districts.
—Distr. Among the S. and E. Grampians, Scotland ; no doubt to be detected
elsewhere.—B. M .; Einlarig, Killin, P ertlishire; Drum, Aberdeen-
sliiro.
Form 2. cinerascens Leight. Lich. F l. ed. 3 (1870) p. 133.—
ïh a llu s greyish-whito. Apothecia with th e margin greyish, entire
or somewhat infloxed.—Cromb. Grevillea, xv. p. 78.
The colour of this form also depends upon the nature of the habitat.
I t may be considered as a dealbate condition, having the reaction witli K
fainter than in the type. I t usually occurs fertile, with the apothecia
fairly uumerous.
Hab. On the trunks of old trees, chiefly elms, in shady places of maritime
and lowland districts.—D k tr . Somewhat local and rare in S. and
Central Englaud, in S. Scotland, and in S. Ireland.—B. M .: St. Leonard’s
Forest and near Brighton, Sussex ; Lymington, H a n ts ; llsham Valley,
Torquay, Devonshire; Windsor, Berkshire ; near Cirencester, Gloucestershire
; Twycross, Leicestershire; Malvern, Worcestershire. Cramond,
near Edinburgh. Carrigaloe, near Cork.
Var. /I. aureola Nyl. Syn. i. (I8 6 0 ) p. 411.—Thallus orbicular,
plicato-rugose, vitelline or golden-j'cllow ; lobes concrete, dilated,
plicate and inciso-crenate a t th e apices. Apotheoia with the margin
a t length crenulate.'—Mudd, Man. p. 113 ; Leight. Lioh. Fl. p. 143,
cd. 3, p. 132.— Parmelia aureola Aoh. Lich. Univ. (1810) p. 487 ;
Syn. p. 210.—B rit. Exs. : Larb. Lioh. Ilb . n. 212.
Distinguished by the plicato-rugose and more closely lohed thallus,
which is also occasionally somewhat granulate in the centre, aud there
also frequently more or less zonately centrifugal. AVhen fertile the apothecia
are numerous, the margin becoming crenate, in this respect also
differing from the type.
Hah. On trunks of trees and on walls in maritime and upland districts.
—Distr. Only here and there throughout England, in S. AVales, and iu
E. Scotland.—B. M .: near King’s Lynn, Norfolk; Withiel, Cornwall;
Buxtoii, Derbyshire; Twycross, Leicestershire ; Tenby, Pembrokeshire ;
Kendal, AA’estmoreland. Near Edinburgh ; Cove, Kincardineshire ; near
Aberdeen.
Form congranulata Cromb. Grovillea, xv. (1887)*p. 78.—Thallus
clothed with small, prominent, crowded granules. Apotheoia oonoavo,
tho margin thickish, inflexed and crenate.
A rather peculiar form referable to this variety, with which it agrees,
excent in the granulose thallus and the concave apothecia. I t is allied to
Yav. suhyranulosa, Nyl. (Flora, 187G, p. 281), bnt is larger a to more
granulose. The granules are usually so numerous as almost to obliterate
the lobes, unless at the circumference, and upon them are frequently
seen the young apothecia and the spermogones. I t was apparently a
spermogoniiferous state of this th at AVeddell (Bull. Soc. Bot. 18b9> P- 7 ,
describes as subvar. tumida {cfr. Leigbt. Lich. II. ill. p. the
specimens seen the apothecia are constantly concave, and do not become
plane.
Ilnh. O i l trunks of trees and r o c k s in maritime, lowland, and upland
d istric ts.-D is ir. Local aud rare in S., Central, and N. England. D. M ..
Near Ryde, Isle of AVight; St. Minver, Cornwall; Great Coniberton,
Worcestershire; Weardale, Durham.
Var. y. e c tan e a Nyl. Act. Soo. Linn. Bord. adr. 3, i. (1856)
3 0 6 Thallus imbricato-laciniate, deep tawny-yollow or orangered
; laciniæ narrow, multifid, plane or convex, impresso-unequa .
Apotheoia small or m oderate, tho margin entire or subcntire.—Mudd,
Man p. 1 1 3 ; Leight. Lich. IT. p. 143, od. 3, p. 132 -P a rm e h a
parietina, fl. ectanea Aoh. Lich Univ. (1 8 )0 ) p. 404 p r ^ partm
Physcia parietina var. aureola Cromb._ Lieh B n t. p. 38. L c o
fu lv u s Dicks. Ciypt. fasc. iii. p. 16, is perhaps referable to this
variety.— BWL Exs. ; Larb. Cæsar. n. 1.
Distimnilshed hy the thallus being less determinate, iiitenser in colour,
and by the n a r ro l and more divided laciniæ. States of it Bometimes
occur which at first sight closely resemble Lecanora eleyans. In specimens
which are less closely appressed to the substratum, the under surface
of the tliallus, at least towards the circumference, is ocoasion^y
¿bconcolorous with the upper. The apothecia, which are usually numerous,
have the margin generally entire, though sometimes slightly
crenulate.
Hah On drv rocks in maritime, rarely in mountainous d is tric ts .-
Distr Local, though plentiful where it occurs, in the Channel Maiids,
S Av'aiTd N. England, S. and N. AVales, in E Scotland, and S WMre-
land —B M. : Islands of Jersey, Sark, and Guernsey. Bolt I l e ^ ,
Devonshire; Fenzance, Oornwall; T e n b y , Pembrokeshire ; Lmmoutb,
Meiionethsliire ; Isle of Man ; Fern Islands, Northumberland ; St. Bees,
O u ^W a n d Cramond, iieaO Edinburgh;
Peterhead and on the Khoil, near Ballater, Aberdeenshire. Neai Blaok-
water Bridge, co. Kerry.
4. P. p o ly c a rp a Nyl. ex Lamy, Bull. Soo. Bot. t. x x x . (1883)
I) 359—Thallus effuse, subpulvinate, greenish-yellow ; lobes short,
granulato-oonglomorate and graiiulato-crenate a t the
4-purple) Apothecia small or nearly moderate, numerous,
ï o Æ . ' ^ t t margin turgid, entire ; sporos 0,011- l |m m l o " ^
0 ,0 0 0 -8 mm. th ic k .-C rom b . Grevillea, xv p 7 8 .- - ? .
Mudd, Man. p. 1 1 3 ; Cromb. Lioh. B n t. p. 3 8 ; Loight.