232 CYCLOCARPINE.E [PHYSCTIA 
Hab. On trunks of old trees, chiefly oaks and elms in cultivated 
districts.— Distr. General and plentiful in England, scarcer elsewhere 
throughout the British Isles—b. M. Jersey; Sark; Guernsey ; 
Elburton and Newton Bushell, Devon ; Winchester, Hants ; near Ryde, 
[. of Wight; Hurstpierpoint, Danny and Glynde, Sussex; Tooting 
Common and Dorking, Surrey; Hythe, Kent; Ulting, near Colchester 
and Walthamstow, Essex; near Farringdon and Windsor, Berks; 
near Swindon, Wilts; near Cirencester, Gloucestershire ; Twycross, 
Leicestershire ; Overthorpe, Northamptonshire; Malvern and Broad- 
was, Worcestershire ; Moor Park, Herefordshire; Clungunford, 
Shropshire; Hopton, Cheshire; Anglesea; Suffolk; Scoulton Mere 
and Norwich, Norfolk; near Ayton, Cleveland and Dalby, Yorkshire ; 
Middleton, Teesdale, Durham; near Hexham and Wark, Northumber- 
land; near Kendal, Westmoreland; Rosslyn Woods, Midlothian ; 
Blackness, Linlithgowshire; Finlarig, Killin, Perthshire; Foulis, 
Baldovan, Auldbar and Melgund Castle, Forfarshire; Midmar Castle, 
Aberdeenshire ; Oakpark near Carlow. 
Form melanosticta Oliv. Exp. Syst. Lich. i. p. 175 (1897). 
—Thallus frequently wide-spreading ; laciniz narrower, more 
appressed, greenish- or dark-brown, with dark cilia. Apothecia 
not pruinose.—Physcia ciliaris var. saxicola Nyl. in Mém. Soc. 
Sci. Nat. Cherb. v. p. 106 (1857) & Syn. Lich. i. p. 414 (1860) ; 
Carroll in Journ. Bot. v. p. 254 (1867); Cromb. Lich. Brit. 
p. 38 & Monogr. i. p. 303; form saxicola Leight. Lich. FI. 
p. 146 (1871); ed. 3, p. 134. Parmelia ciliaris var. melanosticta 
Ach. Meth. Lich. p. 255 (1803). Borrera ciliaris var. saxicola 
Mudd Man. p. 105. 
Distinguished by the colour of the thallus and by the habitat. 
There are connecting stages with the species. 
Hab. On rocks and walls, rarely on sandy soil in maritime and 
mountainous regions.—Distr. Local and scarce throughout the 
British Isles.—B. M. Quenvais and St. Brelade’s, Jersey ; Withiel, 
Cornwall; near Malvern, Worcestershire; “Buxton, Derbyshire ; 
Holyhead, Anglesea; near Langbraugh, Cleveland, Yorkshire; Craig 
Tulloch, Blair Athole, Perthshire; Morrone, Braemar, Aberdeenshire ; 
Sybil Head, Kerry. 
3. Ph. leucomela Mich. Fl. Bor.-Amer. ii. p. 326 (1803),— 
Thailus spreading, with narrow branching lacinie, tapering or 
forked at the apex, white or greyish-white and smooth, the 
margins beset with long slender frequently branching black cilia 
which attach the plant to the substratum by coiling round grass, 
moss, ete., or by haptera; beneath white, and furfuraceous 
(K + yellow, CaCl + yellow). Apothecia (not seen in British 
specimens) lateral, pedicellate, rather large, plane, bluish-grey- 
pruinose, the margin denticulate or proliferous, the laciniate 
outgrowths also sometimes black-ciliate; spores large, oblong- 
ellipsoid, 35-60 p long, 18-25 p thick.—Cromb. Lich. Brit. p. 38; 
Leight. Lich. Fl. p. 149; ed. 3, p. 138. Lichenoides angustifolium 
planum, crinibus nigris Dill. Hist. Muse. p. 156, t. 21, f. 50 
(1741). Borrera leucomela Ach. Lich. Univ. p. 499 (1810) ; 
