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Pl.celLaph. 4. CENOTHALAME/E. 115.Lecidea. 469
26. Lecidea cor I kola. Bark lecidea.
Crust rather tartarlike, granularly bedded, rough, very
white; apoikec'ia small, slightly sunk, grey hoary, growing
globular, not bordered, naked, black; inside greyish.
Lichen corticola, Acliar. Prod. 57 ;
Lichen albo-ater, Ehrh. Crypt. 176.
Lichen air.ylaceiH, Ehrh. Crypl. 303.
Verriicai ia albn-atra, i/o^w Germ. 193.
Lecidea corticola, Achar. Meih. 63 ; Lich, 186.
On the bark and trunks of trees.
Engl. Bot. 1892.
d. ylpothecia broiim-black, broivuish, or hicUnhio lo hroivn,
27. Lecidea Lightfoofii. Lighifooi's lecidea^
Crust rather spreading, granulated, greenish grey; opoihecia
pressed close, flat, brown black, inside dirty whitej
edges thin, winding, paler than the center.
Lichen Lightfootii, Engl Bot. 1451.
Lecidea Lightfootii, .itZifir. Z-JcA. 177.
On the bark of birch trees.
28. Lecidea fuscnta. E-mlrowried lecidea.
Crust leprous, rather powdery, blackish brown ; apnthecia
bordered, dark red, when old blackish.
Lichen fuscatiis, Lamarck Encycl.
Lecidea obscura, Achur. Meih. 75.
Lecidea fiiscata, Achar. Licit. 211.
On stones.
29. Lecidea quernea. Oak lecidea.
Crjisf leprous, granular powdery, pale yellowish brown;
apothecia rather sunk, afterwards convex, not borderedj
brown and black.
Lichen querneus, Dickson Crypt. 1,9; Engl. Bot, 485.
Lecidea quernea, Acfiar. Metli. 62 ; Lich. 202.
On the clefts of the bark of old oaks, and on other lichens^
SO. Lecidea viridescens. Greenish lecidea..
Crust thin, granulated floury, coppery green ; apothecia
convex, wrinkled, irregular, confluent, brown-black.
Lichen viridescens, Schrad. Germ. 1 , 8S ; Engl. Bot. 2217.
Lecidea viridescens, Achar. Meih. 62 ; Lich. iiOO.
Lecidea Iiypnophyla, Winch 2, 37.
On ruins, and decayed mossess.