CALICIUM | CALICIACE® 13 
Mise. Lich. p. 50 (1856).  Coniocybe citrina Leight. in Ann. 
Mag. Nat. Hist. ser. 2, xix. p. 130, t. 8, figs. 7-9 (1857). 
Exsicc. Leight. n. 269. 
Somewhat resembling Coniocybe furfuracea in the general appear- 
ance of the fructification. It grows frequently in shady places, where 
the spores do not develop fully. 
Hab. Parasitic on the powdery yellowish-green thallus of Lecidea 
lucida, a saxicolous lichen.—Divst7r. Rather local and scarce in Wales, 
N. England, and the Central Highlands, Scotland.—B. M. Crossfaen, 
Monmouthshire; Llanymawddy, Llandyssil, near Bala, and between 
Bala and Corwen, Merioneth; Dent, Yorkshire; Glen Fender, Blair 
Athole, Perthshire. 
. C. roscidum Floerke Deutsche Lich. 3, p. 1 (1815); Nyl. 
ae ‘Lich. i. p- 153 (1860).—Thallus ashy-grey, thin or almost 
obsolete. Apothecia moderate in size, blackish ; stalk black, 
rather short and stout ; capitulum lentiform, the margin or the 
entire head greenish-yellow-pruinose ; spores brown or blackish, 
fusiform-ellipsoid, l-septate, slightly constricted at the septum, 
brownish or blackish, 9-18 p long, 4-8 p» thick.—Mart. ex A. L. 
Sm. Monogr. ui. p. 351. C. hyperellum var. roscidum Ach. Lich. 
Univ. p. 238 (1810). 
Easily distinguished by the colour of the pruina and by the spore 
characters. 
Hab. On oak bark.—Distr. Rare in N. England.—B. M. Ingleby, 
Cleveland, Yorkshire; Lowther Park, Westmoreland. 
Capitulum reddish-pruinose. 
3. C. hyperellum Ach. Meth. p. 93 (1803).—Thallus granular 
or pulverulent, bright greenish-yellow. Apothecia black, 
moderate in size with an elongate firm stalk; the capitulum 
globose-lentiform, reddish beneath; spores ellipsoid or slightly 
narrower at each end, 1-septate, dark-brown or blackish in the 
mass, 9-16 pw long, 4-6 w thick.—Hook. in Sm. Engl. Fl. v 
p. 139; Tayl. in Mackay Fl. Hib. ii. p. 77; Turn. & Borr. Lich. 
Brit. p. 140; Mudd Man. p. 258, t. 4, fig. 105; Cromb, Lich. 
Brit. p. 12; Leight. Lich. Fl. p. 42; ed. 3, p. 42. Coralloides 
fungiforme arboreum nigrum, via crustosum Dill. Hist. Muse. 
p- 78, t. 14, fig. 38. (1740). Lichen hyperellus Ach. Lich. Suec. 
Prodr. p. 85 (1798) ; Engl. Bot. t. 1832. Phacotrum (Phacotium) 
hyperellum 8. F. Gray Nat. Arr. i. p. 483 (1821). 
Exsicc. Bohl. n. 61; Johns. n. 8; Leight. n. 23; Mudd n. 245. 
Resembling Chzenotheca chrysocephala in the brightly-coloured 
thallus. It usually spreads over large areas, though also to be found 
in small patches. The apothecia are rather rarely developed, but, 
when present, they are numerous and prominent. 
Hab. On the trunks of old trees, in wooded districts.—Distr. 
Pretty general and common in England, rare in Wales, S. and 
Central Scotland, and in Ireland. eB M. New Forest, Hants; 
