436 108. Physcia. 4. CENOTHALAMEZ.. PI. cell. aph. 
at the tip; apothecia shieldlike, slightly membranaceous, 
formed underneath from the thallas, free, affixed to the 
same by the centre; proligerous jlake forming the centre, 
hollow, coloured, covering the apothecia entirely above; 
inside similar, streaked, with a few cellules; thalloid border 
bent inwards. 
1. Physcia physodes. Wracklike physcia. 
Thallus slightly stellate, sea-greenish white; jags tiled- 
like, sinuate, ‘many-cut, slightly « convex, bald; tips inflated, 
ascending; underneath blackish. br own, in naked ; 3 apothecia 
red, edge not cut. 
Lichenoides ceratophyllon obtusius ef minus ramasum, Raitt Syn, 76, 85. 
Lichen physodes, Lin. S. P. 1610; Engl. Boi, 126. 
Lobaria physodes, Hoffm. Germ. 150. 
Parmelia physodes, Achar. Meth. 250; Lich. 492. 
On palings, trunks of trees, and rocks. 
2. Physcia diatrypa. Pierced physcia. 
Thallus slightly stellate, greenish white; jags sinuated, 
many-cut, flattish, smooth, ~ perforated: arid with soredie ; 
tips inflated; agean Cain wrinkled, folded, black; inter- 
stices white; apothecia pale red; edge not cut. 
Lichen pertusus, Schrad. Fl, Germ. 96: 
Lichen diatry pus, Achar. Prod. 116; Engl. Bot. 1248. 
Lobaria terebrata, Hoffm. Germ, 151. 
Parmelia diatrypa, Achar. Meth. 251; Lich: 493. 
On the bark of trees. 
XIX. 109. PARMELIA. Acharius. Border-moss. 
Thallus leaflike, leatherlike, slightly membranaceous, 
flat, spread out, pressed out, round and stellately lobed or 
many-cut, jageed; underneath fibrillous; jags all equal at 
their tips; apothecia shieldlike, sliohtly. membranaceous, 
formed underneath from the thallus, free, connected only 
by a central point; proligerous flake forming the centre, 
hollow, coloured, covering the apothecia entirely at top; 
inside aa streaked, with a few cellules; thalloid border 
bent inwards. 
1. Parmelia glomulifera. Ballbearing border-moss. 
Thallus cartilaginous, stiff, round, livid, smooth, inter- 
spersed. with blackish. green pulvinuli underneath ochry 
white, downy; lobes sinuately jagged; jags angular and 
bordered; apothecia reddish chestnut, border wrinkled. 
