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Vl.celLaph. 5. IDIOTHALAME.E. 1 34. Hysterina. 505
Opegrapha rupestris, Persoon in Uder Jnn. 11,20.
Oppgiapha Persoonii, Achur. Meth. 17 ; L,ich. 246 ; Engl. Bot. 2345.
On rocks and walls.
/3. aporea. Crust tartarlike, leprous, uneven, powdery;
apothecia roundish, irregular, wavy, plaited, serpentine, in
various manners, gaping.
Liclienis simplicis varietas, Davies Tr. Lin. Soc, 2, 284.
Lpcidea privi2;na, Achar. Mtth. 49.
Opegrapha Persoonii aporea, Achar. Meth. 17 ; Lich. 246.
y. strepsodina. Crust very thin, scarcely any, smooth,
greyish ; apothecia crowded, roundish, irregular, wrinkled
and bordered.
Opegrapha Persoonii strepsodina, Achar. Lich. 247.
On slate-rocks.
S. Hysterina petrcEa. Rock slit-moss.
Crust tartarlike, cracked in beds, dirty-white ; beds
smooth; apothecia sessile, oblong, nearly linear, swollen,
straightish, rather shining; centre slitlike, between raised
edges.
. On
Opegrapha petraea, Achar. Syn. 72.
rocks.
4. Hysferina calcarea. Limestone slit-moss.
Crust tartarlike, powdery, very white; apothecia rather
long, straight, swollen, opake, aggregated in stars ; centre
slitlike.
Opegrapha calcarea, Engl. Bot. 1790; Achar. Lich. 250.
On the mortar of old walls, and on limestone.
5. Hysterina macularis. Spotted slit-moss.
Crust regular, mieven, brown-black; apothecia small,
run together, roundish, elliptic, growing wrinkled, irregu- *^
lar; centre slitlike.
Lichenoides punctatiim et rugosum nigrum, Bilkn Muse. 125.
Lichen rugosus, Lin. S. P. 1607.
Lichen macularis, Relhan Cant- 446,
Opegrapha quercina, Persoon in Usler Ann. 7,31.
Opegrapha conglomerata, Persoon in Uster Ann. 7, 31 ; Achar, Meth.
Opegrapha faginea, Persoon in Usler Ann. 7,31.
Opegrapha macularis, Achar. Lich. 247 ; Meth. 21.
Opegrapha epiphega, Achar. Meth. 24.
Opegrapha macularis conglomerata, Achar. Lich, 247.
Opegrapha macularis fagiuea, Achar. Lich. 248.
On the bark of the branches of beech and oak trees.