56 On the Lichen-Mora of Epping Forest,
localities, &c, contained in the above list, in Forster's
herbarium, and collected by myself during these excursions'.
List of the Lichen-Flora of Epping Forest.
Family—Collemacei.
Tribe—Collemei.
Collema furvum, Ach. — On a tombstone in Walthamstow
Churchyard, and also in Chingford Churchyard. Sterile
(Hb. E. F. s. n. Collema granulatum). Now extinct.
C. cheileum, Ach. — On walls at "Walthamstow. Sterile
(Hb. E. F.). Now extinct.
Leptogium subtile, Schrad. — Edges of clay-pit near
Hale End, in the Forest. Fertile (Hb. E. F.). Also on a
bank near the Wake Arms. Sterile (J. M. C).
L. microphyllum, Ach. — On trees between Reevesgate
and Copthall Green. Fertile (Hb. E. F. .s. n. Collema
fragrans). At High Beach. Sterile (J. M. C). Now extinct
in both localities.
L. palmatum, Huds. — On the Forest, near Hale End.
Sterile (Hb. E. F.). Not observed by me.
L. lacerum, sub-sp. pulvinatum, Ach.—In the Forest, near
the windmill. Sterile (Hb. E. F.). Now extinct.
Family—Lichenacei.
Tribe—Caliciei.
Sphinctrina turbinata, Pers. — Parasitic on the thallus of
Pertusaria communis upon an old oak (since felled) at High
Beach (J. M. C). The only locality in which I have seen it.
Calicium chrysocephalum, Ach. — On barn-doors at Wal-
thamstow (Hb. E. F.). I have nowhere seen this species in
the Forest.
C. melanophaeum, Ach. — On stumps of felled trees near
High Beach (J. M. C). Not seen by me recently.
Var. ferrugineum, T. & B. — On pales in a garden in Hoe
Street, Walthamstow (Hb. E. F.). On old pales at the
Warren. Sterile (J. M. C).
C. hyperellum, Ach. — On old trunks beyond Mount
Pleasant, High Beach. Very sparingly (J. M. C).