PHYSCIA} PHYSIACEX: 231 
Hook. in Sm. Engl. Fl. v. p. 223. B. intricata Mudd Man. 
p- 104 (1861). 
Ezxsice. Cromb. n. 49, Mudd n. 76. 
The only British species of the genus that has a radiate structure 
and wholly fruticose habit. The cortex is composed of filaments 
parallel with the long axis (fibrous); these hyphe send out short 
branches on the surface which give the plant a soft pubescent appear- 
ance. It somewhat resembles Ph. villosa, a southern lichen, but is 
not hairy and differs in the apothecia. 
Hab. On rocks, sand and trunks of old trees in maritime districts. 
—Distr. Local in S. England.—B. M. Bracklesham near Selsey, 
near Portfield and near Chichester and Barnham and cliffs near 
Hastings, Sussex. 
2. Ph. ciliaris DC. Fl. Fr. ii. p. 396 (1805).—Thallus 
spreading, of elongate rather narrow branching imbricate 
laciniz, subascending or generally decumbent, greenish-grey or 
dark-coloured, the under surface pale, hollowed out, the margins 
beset with long grey or partly brown fibrils or cilia which often 
form haptera at the tips, attaching the frond to other parts of 
the lichen and to the substratum (K—). Apothecia large, 
stalked, the disc brownish-black, often bluish-grey-pruinose, the 
margin prominent, entire or generally crenate, becoming pro- 
liferous ; spores oblong, 30-50 p long, 18-24 p thick.—Cromb. 
Lich. Brit. p. 38; Leight. Lich. Fl. p. 144; ed. 3, p. 133 (inel. 
ff. actinota and verrucosa).  Lichenoides arboreum foliosum 
cinereum, scutellis nigris, foliorum extremitatibus hispidis et pilosis 
Dill. in Ray Syn. ed. 3, p. 73, n. 67 (1724). Lichenoides 
hispidum majus et rigidius, scutellis nigris Dill. Hist. Muse. 
p- 150, t. 20, f. 45 (1741). Lichen ciliaris L. Sp. Pl. p. 1144 
(1753); Huds. Fl. Angl. p. 448; Lightf. Fl. Scot. ii. p. 828 ; 
With. Arr. ed. 3, iv. p. 55; Engl. Bot. t. 1352. Parmelia 
ciliaris Ach. Meth. Lich. p. 255 (1803) (incl. var. actinota). 
Borrera ciliaris Ach. Lich. Univ. p. 496 (1810) (incl. vars. 
actinota and verrucosa); 8. F. Gray Nat. Arr. i. p. 434 ; Hook. 
Fl. Scot. ii. p. 56 ; Hook. in Sm. Engl. Fl. v. p. 222 ; Mudd Man. 
p- 105. 
Exsicc. Bohl. n. 38; Cromb. n. 50; Dicks. Hort. Sice. 
fase. vii. n. 24; Johns. nos. 90, 91; Larb. Cesar. n. 68 & Lich. 
Hb. n. 125; Leight. n. 364; Mudd n. 77. 
The thallus of the upper surface and slightly round the edge is 
corticate, the cortex being composed of long parallel hyphe which 
branch out from the margin at intervals to form the stout cilia; the 
under surface is non-corticate. The colour varies with the habitat, 
but is constantly greenish when moist and often whitish- or greyish- 
pulverulent when dry. The apothecia are generally abundant; the 
denticulations of the margin may grow out into short lacinix 
(f. actinota). The spermogones are often very prominent (f. verru- 
cosa); the spermatia are cylindrical, 4-5 » long, 1 p thick. 
