J)urliam; Bassenthwaite Lake, Cumberland. Calderbank, near Glaso'ow ;
Blair Athole and Aberfeldy, Perthshire.
Form M v a F r. Lich. E ur. (18.31) p. 3 8 2 .—Stipes short, somewh
a t stout, capitulum h em isp h e rica l; otherwise as in tho typo. ■
Aludd, Man. p. 2 6 2 ; Leight. Lich. El. ed. 3, p. 4 6 ; Cromb. Grevillea,
XV. p. 14.— Miicor fu lv u s ljm n . Sp. PI. ed. 3 (1764) p. 1655.
This form differs only in the shorter, stouter stipes and the form of the
rapitulum, AAHei-e the plant is abundant, transitiou-states may be seen
m the same specimen.
I la i. On dead stems and mosses on walls and on the ground in up-
land tracts.--D/sfr. Local and scarce in AV. England, and amongst
the Central Grampians, Scotland.—B. AI.; Oswestry, Shropshire. Blair
Athole, Perthshire. '
2. c. sulphurea Nyl. ex Cromb. Grevillea, xv. (1886) p. 14._
ThaUus effuse, leprose, very th in , greyish or greyi.sh-white, often
obsolete. Apothecia small, su lp h u reo-pulverulent; stipes short, very
7 ” o - ’ minute, globose; sporal mass y e llow ; spores
^ 0 0 2 5 -0 ,0 0 3 mm. in diameter.—Ate/im sulphureus Eetz. Vet. Ak.
Handl. 1769, p. 249. Coniocyhe furfuracea c. sulphurella F r. Mudd
Man. p. 2 6 2 ; Cromb. Lich. Brit. p. 1 4 ; Leight. Lich. F l n 47
ed. 3, p. 46. ^ ’
Though regarded as a variety of the preceding, differing chiefly in the
coloui of the thallus and the smaller apothecia, this appears to be speeifi-
callv distinct. I t definitely and constHntlj^ preserves its own proper type
and It has smaller gonidimia. In the British specimens the thallus is
well developed, with the apothecia somewhat scattered.
Hab. On semiputrid trunks of old oaks in wooded upland tracts.—
Htstr. Extremely local and scarce, in S. and N. England.—B. AI.: New
Torest, Hants; Teesdale, Durham.
3. C. pallida F r. Sched. Crit. i. (1824) p. 3.—ThaUus very th in
leproso-pulverulent, white, often obsolete. Apotheoia sm a ll; stipes’
moderate, stout, hyaline or yellow, rarely brownish ab ove; capitulum
globose ; sporal mass white or pale : spores 0,004-10 mm in
d iam e te r.-M u d d , Man. p. 262; Cromb. Lich. Brit. p. 14; Leight.
n v a n f on Z ’ — Ga&iMm p a llid um Pers. Hst. Ann.
(1794) p. 20, t. 3. ff. 1 , 2. Caliciumperonellum Turn. & Borr. Lioh.
Br. p. 158; Sm. Eng. F l. v. p. 141. Phaeotium cantherellum Gray,
JNat. Arr. i. p. 484. Lichen cantharellus En g . Bot. t. 2557.
This may easily be recognized from the preceding, to which in the
““ ‘ T-“" “ 0 “ it» .
//«A. On stumps and trunks of old decayed trees in shady places in
upland tracts.—79i.sir. Only a few localities iu Central and N. Eno-land
w h Z 7 7 ® Giallus has where, B. AI.: Teesdale, Durham ; near Hexham, Nboeretnh ummebt ewriltahn®d else4.
C. h y a lin e lla Nyl. Aldm. Soo. Cherb. v. (1857) p. 9 3 ; Fyn.
i. p. 104, t. V. f. 40.—ThaUus obsolete. Apothecia small ; stipes
slender, hyaline, brownish above ; capitulum globose ; sporal mass
white or p a le -red d ish : spores minute, 0 ,0 0 2 5 -0 ,0 0 4 mm. in diameter.—
Cromb. Lich. Brit. p. 1 4 ; Leight. Lioh. Fl. p. 47, ed. 3,
p. 46.
Occasionally there are traces of a very thin, whitish, and leprose thaFus,
but it is doubtful if this be proper. I t is closely allied to C. pallida, but
differs in the more slender stipes, aud in the spores being at least half
the size.
Hab. On indurated stumps of trees in wooded upland districts.—
Bistr. Found only very sparingly in N. England.—B. AI. : Brantsdale,
Yorkshire.
24. TRACHYLIA F r. Vet. Ak.
Handl. 1821, p. 324, pro p a r te ; Nyl.
Alcm. Soc. Cherb. iii. (1855) p. 167;
Lioh. Scand. p. 44 (note).—Thallus
granulose, or rarely suhleprose, or
wanting. Apotheoia sessile, cupu-
liform, open, black, w ith th in proper
margin ; sporal mass more or
less accumulated, black ; spores 1 -
septate, rarely pluri-septate and
irregularly divided, ellipsoid, blackish
or brownish-blaok : hymenial
gelatine scanty and scarcely tinged
with iodine. Spermogones with oblong
or eUipsoid spermatia.
Distinguisbed from the allied genera
by the apothecia being constantly
sessile, almost lecideiform, and the
ellipsoid spores. As already noted
under Calicium retinens, transition
forms are not wanting, and Trachylia
may not be generically distinct. The
gonidia are globulose.
d G
Fig. 27.
Trachylia tyinpanella Fr.—a. Vertical
section of an apothecium,
X 30. b. Theca (with young
spores) and a paraphysis, x 3ñ0.
c. Older (free) spores, X 500.
d. Vertical section of a epermo-
goniura, X 30. e. Sterigmata
and spermatia, 500.
1. T. tigillaris F r. Sum. Ycg . (1846) p. 282.—Thallus effuse,
granulose, or granulato-areolate, or conorescent, u sually rimóse,
yellowish-green or citrine (K —). Apotheoia small, plane, innate,
black, th e margin prominent, a t length excluded ; spores 1 -septate,
0 ,015-25 mm. long, 0,008-1 Í mm. thiok.—Cromb. Lich. Brit. p. 14 ;
Leight. Lich. Fl. p. 48, ed. 3, p. 4 7 .— Acolium tigillare Gray, Nat.
Arr. i. p. 4 8 2 ; Mudd, Alan. p. 254. Galicium tigillare Turn. &
Borr. Lioh. Br. p. 1 3 2 ; Sm. Eng. Fl. v. p. 139. Lichen tigillaris
Aoh. Prodr. (1798) p. 6 7 ; Eng. Bot. t. 1530.
There is a striking contrast between the colour of the tballus and of
•ll'l j