ON THE LICHENS IN DR. WITHERING S HERBARIUM. 
61 
Upsaliensis of the older British authors is only a more spinulose 
state of frigida). 
L. byssinus. Of this there is no specimen. 
L. fidi\ic2LJxs= Lecanora ( Placodium) murorum var. dissidens, 
Nyl., — (specimens from Dickson s.n. Lichen flavescens). 
L. luteus = lutea (Dcks.), — (a fragmentary specimen 
from Dickson). 
L. xiva.o^vis = Lecidea rimosa (Dcks.), — specimen from Dickson. 
(4) With both Tubercles and Saucers. 
L. Psora = P/iy5cza ccesia (Hffm.), — (specimens from Griffith; 
fertile). 
la. = Lecanora ( Placopsis) gelida (L.), — (specimens 
from Griffith, R. Brown, and Dcks. Hort. Sic. 25j. 
L. decipiens = decipiens (Ehrh.), — (specimens from 
Dcks. Hort. Sic. 25, from Relhan s n. Lichen stellatus and others 
from Portugal). 
L. ienXi^etvis = T^ecanora (Squamaria) lentigera (Webr.), — 
(specimens from Dickson, Belhan, and from Portugal). 
L. candelarius = XccG/mra citiina (Ach.), — (specimen from 
Griffith), and=Zec«?zor« vitellina (Ehrh.), — (fragmentary speci- 
men from Relhan). 
C. Crustaceous, tiled, spreading, fixed. 
L. leucophaeus = syncumista (Flk.), — (specimen from 
Griffith ; no doubt also Dickson's plant). 
L. obscurus = aquila (Ach.), — (specimens from Griffith 
and from Dickson, also Hort. Sic. 25). 
L. luridus lurida (Sw.), — (specimens from Griffith, 
fertile, and from R. Brown sterile). 
L. multifidus incurva (Pers.), — (specimen from 
Dickson with young apothecia). 
la. cartilagineus=S'5'?mwa?’m crassa (Huds.), — (specimens from 
Relhan, Robson, and Dickson, also Hort. Sic. 24). 
L. vavixdi\isz=zzLecanora( Squamaria ) saxicola (Poll.), — (specimens 
from Dickson, Relhan, and Griffith). 
D. Somewhat crustaceous, leaf-lihe, tiled, loose. 
L. fahlunensis=P/flt?/s??m Fahlunense (L.), (specimen from 
Dickson), 2 indi=Platysma commixtum (Nyl.),— (specimens from R. 
Brown and Griffith ; also Dcks. Hort. Sic., 23). 
!•. squamatus=PecGno 7 ’a cervina (Pers.), — (specimen from 
Griffith, and evidently the plant intended), and d['&o=Lecidea 
lurida (Sw.), — (specimens from Dcks. Hort. Sic. 25). 
L. ci\iditxis=Physcia ulothrix (x\ch.), — (saxicole specimen from 
Dickson) . 
