312 LICHENACEI. [PHYSCIA. 
variety.—Leight. Lich. Fl. ed. 3, p. 141; Cromb. Grevillea, xv. 
p. 78. 
Might be taken for a state of P. obscura or P. cesia esorediate, from 
both of which it is readily distinguished by the marginal cilia. It is 
closely allied to the preceding variety, from which it differs in the colour 
of the thallus and of the cilia, and in the almost entire absence of rhizinee 
on the under surface. In the few British specimens there are no apo- 
thecia. 
Hab, On rocks in maritime districts —Distr. Only in the Channel 
Islands, the S.W. Highlands of Scotland, and N.W. Ireland; no doubt 
to be detected elsewhere.—B. M.: La Moye, Island of Jersey. Barcal- 
dine, Argyleshire. <Leenane, co. Galway. 
Subsp. 1. P. tenella Nyl. Flora, 1874, p.306.—Thallus subeffuse, 
narrowly laciniate; laciniz ascending, usually tubuloso-inflated or 
fornicate at the apices, white fibrilloso-ciliate at the margins. 
Apothecia small or moderate, the margin entire or crenulate.— 
Cromb. Grevillea, xv. p. 78.—Physcia stellaris var. tenella Cromb. 
Lich. Brit. p. 39; Leight. Lich. Fl. p. 151, ed. 3, p. 141. Borrera 
hispida 3. tenella Mudd, Man. p. 106. Parmelia tenella Tayl. in 
Mack. FI. Hib. ii. p.147. Borrera tenella Gray, Nat. Arr. i. p. 434; 
Hook. FI. Scot. ii. p. 56; Sm. Eng. Fl. v. p. 222. Lichen tenellus 
Scop. Fl. Carn. (1760) p. 1406; Eng. Bot. t. 1851; With. Arr. 
ed. 3, iv. p. 56. Lichen ciliaris GB. Huds. Fl. Angl. ed. 2, p. 538 ; 
Lightf. Fl. Scot. li. p.828. Lichenoides hispidum minus et tenerius, 
scutellis nigris Dill. Muse. 152, t. 20. f. 46, co, n—Brit. Evs.: 
Leight. n. 174; Mudd, n. 78; Cromb. n. 151; Larb. Lich. Hb. 
n. 330; Bohl. n. 20. 
. Looks at first sight as if it were a distinct species. It is readily recog- 
nized by the hooded-like pee of the ascendant lacinie, though these 
finally become sorediate. The thallus and the marginal cilia, which are 
either simple or variously divided, often become darker-coloured in age, 
or when growing in dry exposed places. The apothecia are not unfre- 
quent, and the spermogones are often numerous. 
Hab. On the trunks and branches of trees, old walls, and occasionally 
boulders in maritime and upland districts.—Drstv. General and common 
in Great Britain; apparently rare in Ireland and the Channel Islands.— 
_, B. M.: La Moye, Island of Jersey; Island of Guernsey, Earsham, Nor- 
folk; Bury St. Edmunds, Suffolk ; Walthamstow, Essex; Shanklin, Isle 
of Wight; Plymouth, Devonshire; near Penzance and Withiel, Corn- 
wall; near Cirencester, Gloucestershire ; Twycross, Leicestershire ; Grims- 
bury Green, Northamptonshire ; Buxton, Matlock, and Darley, Derby- 
shire; Herefordshire Beacon and Malvern, Worcestershire; Haughmond. 
Hill, Shropshire; Tenby, Pembrokeshire; near Usk, Monmouthshire ; 
Dolgelly and Llyn Bodlyn, Merionethshire ; Island of Anglesea; near 
Stokesley and Kildale, Cleveland; Oroft Head, Westmoreland; Holy 
Island, Northumberland; near Asby, Cumberland. Swanston Wood, 
near Edinburgh ; Appin, Argyleshire; Killin and Ben Lawers, Perth- 
shire; Montrose, Forfarshire; Castleton of Braemar, Aberdeenshire. 
Carrigaloe, co. Cork; Dromoreland, co. Clare, 
