Form 2. d e n u d a ta Cromb. Grevillea, xix. (1891) p. 58.—■
Apotheoia moderate or small, naked, brownish-red or chestnut-
brown, th e margin entire.
The epruinose apothecia chiefly distinguish this form. Otherwise they
are in some specimens moderate and crowded (form conferta Cromb.
.Tourn. Bot. 1873, p. 134) ; while in others they are small and somewhat
scattered (form conspersa Fr., “ apotheciis minoribus,” Oromb. Grevillea,
i. p . 171).
Ilab. On calcareous aud schistose rocks in mountainous distriets.—Distr.
Found only in N. England and tlie Central and N. Grampians, Scotland.—
B. iVI. : Near Dent, ATorkshire. Craig Tulloch, Blair Athole,
Perthshire ; Craig Guie, Braemar, Aberdeenshire.
183. L. sq u am u lo s a Nj-1. Elora, 1872, p. 5 54.—Thallus areolato-
squamulose, opaque, cervine, pale badious or badious-hrown ;
squamules adnate, I'ouuded a t the margins, white beneath (K
(CaCl) — ). Apotheoia somewhat large, plane, reddish- or d a rk -
hrown, th e thalline margin usually depressed; spores oblongo-
ellipsoid, 0 ,0 0 8 -1 2 mm. long, 0 ,0 0 4 -5 mm. th ic k ; paraphj'ses not
discrete, occasionally jointed, brownish a t th e apices ; hymenial
gelatine deep blue with iodine.— Cromb. Grevillea, xix . p. 58 ;
Leight. Lich. El. p. 183 pro parte, ed. 3, p. 169 pro p a rte .—■
Lichen squamulosus Schrad. Crypt. Exs. (1797) n. 153. Lecanora
cervina (Pers.), Cromb. Lich. Brit. p. 56 pro minima parte.
Acarospora cervina a. squamulosa, Mudd, Man. p. 158 pro parte.
Readily distinguished from the preceding species by the closely
appressed thallus, the contiguous diiierentlj' coloured squamules, as also
by the thinner spores. I t is not very variable, presenting only the form
th a t i'ollows. The apothecia are at first immersed and then become
superficial.
Hah. On calcareous rocks in mountainous districts.—Distr. Apparently
very local and scarce in N. Wales, N.W. England, and on tbe Grampians,
Scotland.—B. AI. : Dolgellj', Alerionethshire; near Staveley, Kendal,
Westmoreland. Craig Tulloch, Blair Athole, Perthshire ; Craig Guie
and Alorrone, Braemar, Aberdeenshire.
Eorm a lh om a rg in a ta Cromh.—Thalline squamules densely white-
pulverulent a t th e margins ; otherwise as iu th e type.
Analogous to form mosaica, Duf., Nyl., of L. castanea (Ram.), a plant
which does not occur in this country.
Hab. On calcareous rocks in a subalpine district.—Distr. Extrenielj'
rare on oue of the Central Grampians, Scotland.—B. AI. : Craig Tulloch,
Blair Athole, Perthshire.
184. L. percænoides, Nyl. ex Wedd. Bull. Soc. Bot. xvi. (1869)
p. 202.—Thallus verrucoso-squamulose, thickish, chestnut-coloured,
white- or cæsio-pruinose, th e squamules convex, scattered or im b ricate
(K —, CaCl — ). Apothecia in nate, concave, irreg u lar, rounded
or difform, often crowded, reddish- or dark-brown, naked, th e
thalline m argin prominent, whitish ; spores ellipsoid, 0 ,0 0 4 -6 mm.
.1» T h . -
in S.W. M '^K e aT t Z n e Z i f P ' '
185. L. p e lio cy p h a Nyl. Not. Siillsk pro F et Fl v
n. ser. v. (1866) p. 1 8 2—Thall.w „ri 7 ^ “ h.
squamulose, thickish, somewhat sh in fo t il
crenate, slightly convex, oervine-brown bte ri' often
Apothecia I t f i7 t im m è r s i, tL n p T a ò e o:^^^^^^^^^^
in the centre, reddish-brown naked tho fb 1? ro n /e x , papillose
crenulate and flexuose; Tpores oW Òn i 1 7
long, 0 ,0 0 1 0 -1 6 mm. thick ? ° 3 - 5 mm.
w ith io d in e .-C rom b . GrevillJa xix I ¿ ¿ “ ® '‘■ft®" ^ino-rod
M ahi. in Ach. Meth. Suppl. (1803) p. 41 peliocypha
following e sp e cialRwh h 1 7 7 ^ rirtf,1 r^ ^^ ^ with the
of the thallus and the papillate a n n tL rif 1 v "o negative reactions
fragnientaiy British s p L K ‘g a r e Ì e to : The single
Braeriach, ¿raen?a[ AbÒrdeeLtoe'ì'' « co tlan d .-B . AL : The
a r e o l a to - s q u am u lo s e ,^ p L ^ H 7 s tn u ?O T c e rS -W
reddiX).®' Ip o th e c ia 'X t X S tm X i Ì o rX i ’X p ’’“ ®?'^ (K(CaCl)X
oblongo-cylindrical, 0 ,0 0 3 -4 m m .’long o X l - 0°doM i?®]®®
hymenial gelatine (especially th e tXom’l ;
io d in e .-C rom b . Grevillea, x ix . p. 58 • Lich Brit n T “ ®"''®4 . v[ith
pa rte ; Leight. Lich. Fl. p. 186 mo pòrte T r i 8 7 m P''®
Lichen fuscatus Schrad. Spioil. Fl. Germ (1 7 9 4 ? ’X 8 V ' ' 7 4'” ‘®—
cervina (Pers.) Aludd Alan n 15« ‘ ^ ) P‘ Acarospora
catona. Cromb. Lich. Brit, p." 56 pro
Nat. Arr. i. p. 444. Lichen s q L n llo s a s e J b 7 t“ l 7
Lecanora squamulosa E o o k. FL Soot ii n qqn i w ^
p. 187 pro p a r t e . - i t o L D . . : L e S t .X "
rigMyXitXXaS^ ^ ^^ ^^ ^^ not been
chemical reaction, and the colour of their Xr) f squamules, their
character of the apothecia. As iu all the a lW X p ^ lX Z f i :
2 i 2