P a rt ii. p. 308, under Gongylia viridis.
A fte r G. viridis A. L. Sm. add in Journ. Bot. xlix. p. 42,
t. 510, f. 2 (1911). A fte r the description add spore size
up to O'085 mm. long, and under Hab. add They don Bois
and near Loughton, Epping Forest, Essex.
P a rt i. p. 467, after L. cinerea.
Lecanora (Aspieilia) Lilliei E. de Lesd. in Bull. Soc. Bot.
France, liii p. 515 (1906).—Thallus tartareous, about 0-5 mm.
thick, cracked-areolate, white, yellow within (K —, CaCl — ).
Apothecia minute, black, immersed in the areolæ, rounded-
difform, or lirelheform ; epithecium olivaceous, hypothecium
colourless ; paraphyses gelatinous-concrete ; asci narrowly clavate ;
spore 4-6næ, ellipsoid, 0,013-15 mm. long, 0,005-6 mm. th ic k ;
hymenial gelatine deep blue with iodine. Specimen not seen.
Outwardly like Lecanora cinerea, but diflering in the yellow colour
of the interior of the thallus and in the smaller spores.
Hah. On granitic rooks, Ousdale, Caithness. (Collected by
D. Lillie.)
P a rt ii. p. 218, after A. lapidicola.
Arthonia Lilliei B. de Lesd. in Bull. Soc. Bot. France, Ivii.
p. 34 (1910).—Thallus blackish, leprose, scanty. Apothecia
black, minute, about O'l—0'2 mm. in diameter, round, plane ;
epithecium olivaceous, hymenium colourless or faintly brownish,
I13 potheciura colourless ; paraphyses concrete, free and capitate
a t the tips ; asci ventricose ; spores 8næ, colourless, oblong or
ellipsoid, 1-septate, the two cells equal, scarcely constricted,
0,010-12 mm. long, 0,004-5 mm. th ic k ; hymenial gelatine wine-
red with iodine. Specimen not seen.
Hah. On siliceous rocks, Achastle, Caithness. (Collected by
D. Lillie.)
The position of the following species is uncertain :—
Botrydina vulgaris Bréb. ex Meneghini in Mem. R. Accad.
Sci. Torino, ser. 2, v. p. 98 (1842) ; emend. Acton in Ann. Bot.
xxiii. p. 578 (1909).—Thallus fm-ming small green spherical
mucilaginous bodies 0,020-300 mm. in diameter, rarely larger,
with a central mass of green algal cells {Goccomyxa suhellipsoidea
Acton, tom. cit. p. 573) and a pseudo-parenchymatous envelope of
fungal cells which proliferate inwardly among the algæ. F ru it
not developed. Specimen not seen.
Considered bj' E. Acton to be a primitive lichen distinguished
from mere soredia by the structure of the fungal envelope. The
fungus, when grown in a separate culture, developed coiled branches
which suggested affinities with the Helicosporeoe.
Hab. Among bryophytes on rooks or on the ground, in damp
shady situations, chiefly in moimtainous districts.
G L O S S A R Y
Abraded (Lat. abrado, to rub away), rubbed or scraped off.
Aoervulate (Lat. acervus, a heap), heaped up—Acbbvuli.
Acicular (Lat. acus, a needle), slender, needle-shaped.
Acuminate (Lat. acumen, a point), coming grad u a lly to a point.
Adnate (Lat. adnascor, to grow to), adhering to anything.
Adpressed (Lat. ad, to, pressus, kept u n d e r), lying flat.
Adspersbd (Lat. adspersus), s ca tte red .
iSEUGiNOSB (Lat. cerugo, the rust of brass), blue-green colour of verdigris
Af f ix e d , fixed to or upon.
Agglutinate (Lat. agglutino, to glue on to), glued together.
Aggregate (Lat. aggregatus, assembled , crowded together but not
confluent.
Alectorioid, like th e genus Alectoria.
Algoid, sim ila r to algee.
Amphithecium (Gr. amphi, around, theke, a case), the thalline margin of
the apothecium, cf. thalloid exeiple.
Amtlaceous (Gr. amylon, fine flour), starchy.
Anaphysbs (Gr. ana, wg,phusis, growth), peculiar sterigmatoid filaments
in the apothecium of Epheheia.
Apiculatb (Lat. apex, the end or point), terminating in a small point.
Apiculus (Lat., a little point), a sharp, short point.
Apothecium (Gr. apo, up, theke, a case), a n open or disc-shaped fru ctification.
Appbndiculatb (Lat.), with small appendages.
Appr e ssed , cf. adpressed.
Applanate (Lat. ad, to, planatus, made flat), flattened or horizontally
Arachnoid (Gr. arachne, a spider), like a spider’s web.
Arcuate (Lat. arcus, a bow), bent like a bow, curved.
Ardellæ (Gr. ardo, to sprinkle), the small spot-lik^ apothecia of Artho-
macece.
Areola (Lat. area, a space), a small space marked out on the surface of
crustaceous lichens.
Abthonioid, applied to apothecia like those of the genus Arthonia.
Aethbosterigma {Gr.arthron, a joint, sterigma, a prop), septate sterigmata
Articulate (Lat. articulus, a joint), septate.
Ascus (Gr. askos, a wine skin), an enlarged cell in which the spores are
developed, usually the terminal end of a hypha.
Ascyphous (Gr. a, without, skuphos, a cup), without scyphi, a.v
Asper sed , of. adspersed.
Ax il (Lat. axilla, the arm-pit), the angle between the axis and any organ
arising from it. .
Axis (Lat., a,n axle), the central strand of tissue or the main stalk round
which the organs are developed.
Bacillab (Lat. hacillum, a staff), rod- or club-shaped.
Badio-, B adiods (Lat.), chestnut-brown.
Bæomycbtoid, like the genus Boeomyces.
Biatorine, with soft or waxy apothecia, often brightly coloured, without
a thalline margin, as in Biatora.
2 A 2