28 
THE ESSEX NATURALIST. 
Lecanora atra, Ach. 
On brick wall, Uplands, Loughton t sparingly fertile. 
Lecanora Hageni, Ach. 
On willow trunk, Roding bank between Loughton and 
Buckhurst Hill : fertile. 
Lecanora polytropa, Schaer. 
On flints, Great and Little Monk Woods : fertile. 
Lecanora calcarea, Sommerf. 
On stonework of Epping Old Church ; ditto, Nazing 
Church : sparingly fertile. 
Thelotrema lepadinum, Ach., 
On fallen hornbeam trunk, Green Ride to S. of Great 
Monk Wood : fertile. 
Cladonia uncialis, Web. 
form bolacina, Nyl. 
On heathy ground by Green Ride to E. of Great Monk 
Wood : sterile. 
Cladonia digitata, Hoffm. 
On banks, Jack’s Hill; ditto, by Green Ride to E. of 
Great Mont; Wood : fertile. 
Lecidea Friesii, Ach. 
On oak trunk, N. of Great Monk Wood : sterile. 
Lecidea ochracea, Wedd. 
On cement, Jack’s Hill, Theydon : fertile. 
Lecidea contigua, Fr. 
On brick wall-tops, Theydon Bois railway station, Epping 
town ; etc. : fertile. 
Verrucaria rupestris, Schrad. 
On limestone coping of wall, Loughton Church; on 
tombstone, Epping Old Church ; etc. : fertile. 
Since the appearance of our earlier papers, the synonymy 
of the Class Lichenes has undergone extensive modification 
owing to the publication of Miss A. Lorrain Smith’s exhaustive 
Monograph 2 by the British Museum authorities. It appears 
advisable, therefore, to bring our previous lists, so far as 
thereby affected, into line with the new nomenclature. This is 
as follows :— 
Calicium melanophaeum, Ach. is now Chsenotheca 
melanophsea, Zwackh. 
Do., var. ferruginenm, Schaer. is now Do., var. 1 erruginea> 
A. L. Sm. 
2 A Monograph of the British Lichens, part i., 2nd edition, 191 . 
