Pl. cell. aph. 4. CENOTHALAME. 107. Borrera. 435 
4. Borrera furfuracea. Branny borrer. 
Thallus grey, floury ; jags linear, narrow, branched, un- 
derneath grooved, naked, wrinkled, violet, blackish; apo- 
thecia nearly marginal, cupshape, centre red; thalloid bor- 
der thin, slightly bent in. 
: Lichenoides cornutum amarum, superne cinereum, inferne nigrem, 
Dillen Muse. 157. 
Lichen furfuraceus, Lin. S. P. 1612. 
Lobaria furfuracea, Hoffm. Germ. 143. 
Parmelia furfuracea, Achar. Meth, 254. 
Borrera furfuracea, Achar, Lich. 500. 
On rocks, and the trunks of trees. 
5. Borrera Atlantica. Atlantic borrer. 
Thallus pale reddish, downy; jags divaricated, twisted 
linear, narrow; underneath grooved; apothecia scattered, 
centre brownish black; thalloid border thin, not in the 
least cut. 
Lichen intricatus, Desfont. Fl. 4étlant. 2, 420. 
Parmelia Atlantica, Achar. Meth, Suppl. 59. 
Borrera Atlantica, Achar. Lich. 502. 
On the bark of trees. 
6. Borrera chrysophthalma. Gold-eye borrer. 
Thallus yellow, yelklike; both sides naked, alike co- 
loured ; jags linear, flattish, pinnately branched ; tips fibril- 
lous; apothecia nearly terminal, centre orange; thalloid 
border fibrillea, fringed. 
Lichen chrysophthalmus, Engl. Bot. 1083. 
Platisma armatum, Hoffm. Lich. 2, 43. 
Parmelia chrysophthalma, Achar. Meth. 267. 
Borrera chrysophthalma, Achar. Lich. 502. 
On the trunks and branches of trees. 
7. Borrera leta. Pleasant borrer. 
Thallus very yellow, jags thin, vaguely branched, com- 
plicated, fibrilled, cirreus; apothecia scattered, centre flat, 
red; thalloid border not cut, naked. 
Lichenoides quod Muscus aureus tenuissimus, Dillen in Raii Syn. 65, 8. 
Lichen vulpinus, Lin. S. P. 1623. 
Physcia flavicans, De Candolle Voy. Bot. 25. 
Borrera flavicans leta, Achar. Syn, Lich, 225. 
On the trunks of trees. 
XVIII. 108. PH YSCIA. Achard. Physcia. 
Thallus leaflike, leatherlike, slightly membranaceous, 
flat, expanded, pressed close, round starlike lobed or 
many-jagged; underneath fibrillous, jags slightly inflated 
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