3l4 LICHENACEI, [PHYSCIA. 
Physcia stellaris var. aipolia f. anthelina Nyl. Lich, Scand. p. 111. 
Lichen anthelinus Ach. Prodr. (1798) p. 111. 
The narrower and more discrete lacinie, which are either entirely 
smooth or somewhat rugose, distinguish this variety. In what Acharius 
subsequently (Lich. Univ. p. 478) regarded as the more typical state, the 
lacinie are continuous from the centre to the circumference, when it is 
entirely analogous to var. angustata of P, pulverulenta, In the few British 
specimens the apothecia are numerous. 
Hab. On the trunks and branches of trees in maritime and upland 
districts—Distr. Only sparingly in S. England and S.W. Ireland.— 
B. M.: Henfield, Sussex; near Ryde, Isle of Wight; Ilsham Valley, 
near Torquay, Devonshire. Muckruss Demesne, Killarney, co. Kerry. 
Var. y. cercidia Nyl. ea Lamy, Bull. Soc. Bot. t. xxv. (1878) 
p. 884.—Thallus whitish or greyish-white, somewhat rugose, be- 
neath with blackish rhizine ; lacinie contiguous, somewhat convex, 
short, difform and crowded in the centre, plane and broader at the 
circumference. Apothecia modcrate or somewhat large, plane, tho 
thalline margin at length crenulate.—Cromb. Grevillea, xv. p. 78.— 
Parmelia aipotia B. cercidia Ach, Lich. Univ. (1810) p. 478. Physcia 
stellaris Cromb. Lich. Brit. p. 39 (excel. var. acrita); Leight. Lich. 
Fl. p. 151, ed. 3, p. 140. Borrera stellaris Mudd, Man. p. 109. 
Parmelia stellaris Tayl. in Mack. Fl. Hib. ii. p. 142. Lichen stellaris 
Lightf. Fl. Scot. ii. p. 824; With. Arr. iv. p. 31 pro parte; Eng. 
Bot. t. 1697.— Brit. Hxs.: Leight. n.6; Mudd, n.79; Larb. Lich. 
Hb. no. 161. 
A larger and coarser plant with somewhat of the aspect of P. pulveru- 
lenta. It differs from the type in the colour of the rhizinw and in the 
more contiguous, convex, and rugose lacinis, which are at times as if 
imbricato-squamose in the centre. The apothecia are often very nume- 
rous and crowded, sometimes nearly obliterating the thallus, when they 
become flexuose and deformed. 
Hab. On the trunks of old trees, very rarely on calcareous -walls, in 
cultivated tracts from maritime to upland districts.—Distr. General and 
lentiful in most parts of Great Britain; apparently rare in S. Ireland 
and in the Channel Islands.—B. M.: Island of Guernsey, Yarmouth, 
Norfolk; Walthamstow, Essex; Edgeware, Middlesex; near Elstree, 
Herts; Reigate, Surrey; Glynde, near Hastings, and Henfield, Sussex ; 
near Ryde, Isle of Wight; Withiel and Penzance, Cornwall ; near Nails- 
worth, Gloucestershire; Madingley Park, Cambridgeshire; Twycross, 
Leicestershire; Pixham, near Worcester, and North Malvern, Worcester- 
shire ; Harboro’ Magna, Warwickshire ; Llandrindod, Radnorshire ; A ber- 
dovey, Merionethshire ; Clungunford and near Shrewsbury, Shropshire ; 
near Ayton, Cleveland, Yorkshire ; Kendal and Windermere, Westmore- 
land; Alston, Cumberland ; near Hexham, Northumberland. Troquain, 
New Galloway, Kirkcudbrightshire; near Melrose, Roxburgh; near 
Edinburgh; Inverary Castle, Argyleshire; Blair Drummond, near Stir- 
ling; Finlarig, Killin, Perthshire; Camperdown, Forfarshire; Cults, 
near Aberdeen, and Castleton of Braemar, Aberdeenshire; Fort William, 
Inverness-shire ; Applecross, Ross-shire, Near Cork; Dunkerron, co. 
Kerry. 
