ON THE LICHENS IN DR. WITHERING S HERBARIUM. 
59 
L. fia.voxvLbescens = Lecanora aurantiaca (Lglift.), — (specimen 
from Dickson). 
L. Pertusaria communis (DC.), — (specimen from Mr. 
Knapp, Malvern Hills). 
L. ventosus =Zeca7iora ventosa (L.), — (specimens from Dcks. 
Hort. Sic. 23, and from E. Brown). 
L. coocinevis =Lecanora hcematomma (Ehrli.), — (specimens from 
Dcks. Hort. Sic. 24, and from R. Brown). 
(3) With Saucers. 
L. cox^\liTxxis = Pertusaria dealhata (Ach.), — (specimen from 
Dickson, fertile), and also fragments of var. corallina (L.), (pro- 
bably also from Dickson). 
Is. V?ixe\\viB = Lecanora parelia (L.), — (corticole specimens from 
Dcks. Hort. Sic. 23), and (saxicole specimens, Saltash Ferry). 
L. crenulatus = i^cawora umhrina * crenulata (Dcks.), — (speci- 
mens from Dickson). 
L. candicans = Deca?iora ( Placodium) candicans (Dcks), — 
(specimen from Griffith). 
L. -wdixi 2 LnB = Arthonia varians (Dav.), — (specimen from Davies). 
L. 2 itex = Lecanora atra (Ach.), — (saxicole specimens from Dick- 
son and at Rowdley Hill), and also corticole specimens from 
= Lecanora atra and Lecanora chlarona with Splioeria epi- 
cymatia, Wallr. 
L. subimbricatus = circinata ^ subimhricata (Relh.), 
(* Lecanora subcircinata Nyl ) — (specimens from Relh an and 
Dickson). 
L. concentricus = Lec/fZea concentrica (Dav.), — (specimen from 
Griffith). 
L. punctatus. Of this there is no specimen. 
L. scruposus = scruposa (Ach.), — (specimen from 
Relhan s.n. Lichen excavatus'), and also = var. bryophila, (Ach.), — 
(specimens from Dickson and Griffith). 
Var. 2. Of this there is no specimen. 
L. frustulosus = A6c«wom frustulosa (Dcks.), — (a fragmentary 
specimen from Dickson, not well evolute). 
L. atrocinereus = atrocinerea — (specimen from 
Dickson), and 2 X ^0 Lecanora (Placodium) chalybceum (Duf.), — 
(specimen from Robson). 
L. gibbosus. Of this there is no specimen. 
L. Dicksoni. Of this there is no specimen. 
L. pruinatus. Of this there is no specimen. 
L. corneus t. xxxi., f. ^ = Lecidea cornea (With.), — (three speci- 
mens from Griffith). This is the Lecidea tricolor (With.), of 
authors, but erroneously, vid infra. 
