and the causes affecting its recent diminution. 
68 
E. F.). Near Coptball Lodge (J. M. C.). Apparently very 
rare in the Forest. 
L. cerixa, Elirli. — In Hainanlt Forest, near Widdington 
(E. F.), vide Forster’s MS. notes. There is no specimen, 
however, in his herbarium, nor have I anywhere seen the 
plant. 
L. lacixiosa, Duf. — On old trees near the King’s Oak, 
High Beach. Sterile (J. M. C.). Now extinct, in conse¬ 
quence of the trees having been felled. 
L. yitellixa, Ehrh. — On a wall (terricole) at Waltham¬ 
stow. Fertile ( Hb. E. F.). Also on trees in a wood at Hale 
End. Fertile (Hb. E. F.). I have not myself observed this 
species. 
L. roboris, Duf. — On the Forest, not far from Hale 
banks (?), (Hb. E. F.). On old trees near King’s Oak 
(J. M. C.). Not recently seen, and probably extinct. 
L. exigua, Ach. — On tiles at Walthamstow (Hb. E. F.). 
On trees about High Beach, not unfrequent (J. M. C.). 
Formerly also plentiful near Coptball Lodge. 
L. galactexa, Ach.—On mortar of brick-walls near Lough- 
ton, and at Epping (J. M. C.). Probably also elsewhere. 
L. all o ph ax a, Ach. — On trees near Coptball, and at High 
Beach (J. M. C.). 
L. parisiexsis, Nyl.—On trees at Walthamstow [Hb. E. F.). 
I have not observed this species, though it is probably to be 
found elsewhere. 
L. chlaroxa, Ach.—On the Forest, near Salter’s Buildings 
(Hb. E. F.). Near Chingford, at High Beach, and near 
Ambresbury Banks (J. M. C.). Apparently pretty common. 
L. albella, Pers. — On the Forest, near Epping (Hb. 
E. F.). On an old tree near Coptball Lodge (J. M. C.). I 
have not recently observed this species. 
L. AXGULOSA, Ach. — On the Forest, near Lougliton (Hb. 
E. F.). Not seen by me, though probably to be detected in 
other localities. 
Yar. sordidescens, Flk. — On Epping Forest (Hb. E. F.). 
This variety is apparently now extinct. 
L. varia, Ach. — On rails at Walthamstow (Hb. E. F.). 
