CYPHELIUM] CALICIACER 21 
prominent at first then excluded ; spores l-septate, 15-25 p long, 
8-11 p thick.—Lichen tigillaris Ach. Lich. Suec. Prodr. p. 67 
(1798); Engl. Bot. t. 1530. Acolium tigillare 8. F. Gray Nat. 
Arr. i. p. 482 (1823); Mudd Man. p. 254. Calicium tigillare 
Turn. & Borr. Lich. Brit. p. 132 (1839) ; Hook. in Sm. Engl. FI. v. 
p- 139. Trachylia tigillaris Fr. Summa Veg. Scand. p. 118 
(1846); Cromb. Lich. Brit. p. 14; Leight. Lich. Fl. p. 48; 
ed. 3, p. 47. 
The thallus is greener in damp shady places, and is then barren. 
The apothecia are immersed in the larger granules. The minute 
black spermogones are frequent, the spermatia 5-7 p» long, 2°5-3°5 » 
thick. 
Hab. On old palings generally about gardens, very rarely on trees. 
—Distr. Rare, at least in a well-developed state, having been 
gathered only sparingly in E. and N. England, and now extinct in 
several of the recorded localities (fide Crombie).—B. M. Waltham- 
stow, Loughton, Maldon, and Colchester, Essex; Herringfieet and 
near Yarmouth, Suffolk; Ayton, Cleveland, Yorkshire. 
2. C. inquinans Trev. in Flora xlv. p. 4 (1862).—Thallus 
effuse, coarsely granular, the granules concrescent, sometimes 
deeply cracked, thin or rather thick, grey or whitish 
(K-+yellowish). Apothecia moderate in size, prominent, plane, 
black, sometimes slightly grey-pruinose, with a black, thin, pro- 
minent margin, which is sometimes white-pruinose, and at length 
evanescent ; spores l-septate, constricted at the septum, 10-18 p 
long, 7-12 p thick.—Lichen inquinans Sm. Engl. Bot. t. 810 
(1800). Calicium tympanellum Ach. Meth. p. 89 (1803); Turn. 
& Borr. Lich. Brit. p. 134; Hook. in Sm. Engl. Fl. v. p. 139. 
Acolium tympanellum S. F. Gray Nat. Arr. i. p. 482 (1821) ; 
Mudd Man. p. 254, t. 4, f 101. Trachylia tympanella Fr. 
Summa Veg. Scand. p. 118 (1846) ; Carroll in Journ. Bot. iii. 
p- 287 (1865); Cromb. Lich. Brit. p. 14; Leight. Lich. FI. 
p- 48 ; ed. 3, p. 47. 
Ezxsice. Cromb. n. 114; Leight. n. 88 (under the name 
Lecidea dubia Turn. & Borr.); Mudd n. 240. 
The apothecia have largely the aspect of a Lecidea except for the 
loose spores, which stain the fingers blackish when touched. The 
thallus usually spreads extensively over the substratum. 
Hab. On old posts and palings, rarely on the bark of trees in inland 
districts.— Distr. General and usually plentiful in England, rare in 
Treland, not reported from Scotland.—B. M. New Forest, Hants; 
Shermanbury, Walstead Common, Albourne, and Lindfield, Sussex ; 
near Totteridge, Middlesex; Lydd and near Penshurst, Kent; Ulting, 
Wickham Bishops, Walthamstow, and near Colchester, Essex; near 
Elstree, Herts; near Wootton Basset, Gloucestershire; Oswestry, 
Haughmond Hill, and near Shrewsbury, Shropshire; Twycross and 
Gopsall Park, Leicestershire ; Bilston, Staffordshire ; Harboro’ Magna, 
Warwickshire ; Colwall, Malthon, and near Malvern, Worcestershire ; 
Derbyshire ; Yarmouth and Ickworth, Suffolk; Earsham, Norfolk ; 
Rosedale, Yorkshire ; Curraghmore, Waterford. 
