‘ . i l
J
197. L simplex Kyi. in Cromb. Lieh. Brit. (1870) p 5 7 -
Thallus obsolete. Apothecia lecideine, minute, plane, or concave
¿O rrlv OTOTat “ 4 irre :
7 o m 9 IL-’ 0 ,0 0 3 -6 mm. long, about
iid in ■" 7 ’ gelatine bluish, then wine-red with
lodi j .- -Z e c a ) io r a squamulosa form simplex Leight. Lich. PL p 185
J . 3 p. 1/0 Acarospora cervina ,. simplex Aludd, Man. p 16o’
LecuUa simplex Sm. Lng. PI. v p. 1 7 9 ; Tayl. in Mack. Fl. Hib. ii.‘
?■ f 2 u r - . T i" " - Soo. ii. (1794) p. 283,
h '7 d L ! ? il P- ” ’ Ting. Bot. t. 2152 (two le ftu
f f Z S l “ ■ '■ « » - * * •
AVell chararterized by the form o fth e fruit aud the very minute snores
constantly black even when moistened ifttíe vfei i
rotundate with the disc rugose aud th e ’n l ^ Z f o v Z te a n d ^m u lo rT t
L n i 7 ‘p Z tT Z Z (Opeffraplia Persoonii y. strepsodina Li?h.
L n n . p. ^4,), \ \ jien more angulose aud much gyroso-nlicate as if o-vrn
phoro/d It IS form complioata Cromb. Grevilleff x x 'p 68 Both of
¿ ¿ d ltio n r" * ^ " Tass into and are frequently mixed up J i h more'^rypVaf
Ilab. On rocks, chiefly schistose and calcareous, iu maritime and mni.n
famous districts.—Dwt)-. Here and there throu»bnnt ™ 7
the Channel Islands ; apparently rare íH a' M A Io lZ
Island of Je rse y ; Chateau Point, Island of Sark. Buckfastieiah
burton and Ilfracombe, Devonshire ■ Tintaael Wlthtel 7 ? if ’
f - 4 Rangoi, Cainaiionshire; Island of An gZlepseTa • ZnoZrtlhg n,P A lT rL Z ^ Z :: t i i*
sh h e ’- Barealdin? and Bailachuhsh Artvlesmre,
Calliach, Ben Lawers, and Craie-Tnllnph Pcivii-v.ri'u* c? .1.1
of Bay of Nigg, Kincardineshire’; C r a ^ Z f o
G a t e S ®®' Glencorbol, Conn’emara, co!
Form herpes Cromb. Grevillea, xix . (1891) p. 5 8 .-A p o th e o ia very
Readily overlooked from being scarcely visible to the naked eve
the s u b s la tiZ .“^ ^ developed state depending on the n a tu i/o f
Hab. On shady schistose rocks in a maritime locality —Distr Onlv
Z J y f e S ^ “ • ^T'g''l“ 4s of Sco tIand.-B. AI.: Ballachulisl[
DIRLNA F r. PI. Horn. (1826) p. 2 4 4 ; KM. Me'm Sno
erb. 111. p. 180. Thallus crustaceous, continuous or rimulose"
jn t a in in g ohrysogonidia. Apotheoia tuberculoso-leoanorine; spore?
81186, ñisiform, 3-septate, colourless; hypothecium thiok, black ■
paraphyses slender, not very d is c re te ; hymenial gelatine wine?
red with iodine. Spermogones tuberouloso-immersed, with simple
sterigmata and acioular, arcuate spermatia.
A small genus closely allied to Lecanora,
from which it differs chiefly in the
character of the hypothecium. In this
respect, as also in their form, the apothecia
resemble those of lioccella.
1. D. re p an d a Nyl. Mém. Soo.
Cherb. V. (1857) p. 116.—Thallus
determinate, thiok, tartareo -farinose,
tuberculoso-unequal, subeffigurate at
th e eiroumferenoe, w hite (Kf + yollow,
CaCl + red) ; hypothallus white.
Apotheoia elevated, piano-depressed,
a t first closed, then expanded and dilated,
hlaok, cæsio- or white-pruinose;
th e th allin e margin thiok, obtuse,
more or less inflexed ; spores ofteu
slightly curved, 0 ,0 2 7 -3 0 mm. long,
about 0,004 mm. thick. — Cromb.
Jo u rn . Bot. 1871, p. 1 7 8 ; Leight. Lich. R‘g- 69-
F l. p. 235, ed. 3, p. 2 26.— Parmelia Dirina repandaHyl.—a. A theca
repanda F r. Lich. E u r. (1831) and paraphysis, x 350. h.
p. 177. Three spores, X .500. c. Sterigmata
and spermatia, X 500.
A plant chiefly of S. Europe and N. Africa which finds its way to a
few localities in our Islands. The peculiar apothecia are numerous, at
times crowded and difibrm with the thaUine margin theu flexuose. In
sterile specimens tlie spermogones are abundant, with sterigmata0,010 mm.
long, 0,001 mm. thick. The corticolous form (Lecanora Ceratoniæ Ach.
Lich. Univ. p. 36] J t. 7. f. 5) does not occur with us.
Hab. On rocks iu maritime districts.—Disir. Only sparino-ly in the
Channel Islands, S.AV. England, and N. AVales.—B. AÏ. : La Co’upe and
Rozel, Island of Jersey. Portland Island, Dorsetshire; Great Orme’s
Head; Carnarvonshire.
Subtrihe I I I . P E B T U S A R IE I Nyl. Lioh. Soand. (1861) p. 177.
Thallus variously crustaceous, ooutinuous ; gonidial layer containing
typical eugonidia. Apothecia more or less inclosed in
th a llin e verruoæ, punotiform or w ith th e disc expanded and leoanoroid;
spores variable in number, simple. Spermogones with
simple sterigmata.
Arranged by many authors among the Pyrenooarpei from the fruit of
both being frequently subsimilar. As, however, the more developed
forms of the apothecia in Pertusariei resemble those of many Lecanorei
its two genera are more appropriately included in this tribe. ’
62. PERTUSA RIA DC. Fl. F r. ii. (1805) p. 139 ; Nyl. Mém.