
          (199)

Sphaeria sulcata. Hist. 124.

Furrowd Sphaeria.

Sph pulicaris

This curious spaeria has been considered
as a Lichen.  Lightfoot in his
Flora scotica calls it S. pulicaris
from its likeness in colour shape and
size to a flea.  We often see it on
the fallen twiggs of ash Trees which
have lain amongst weeds till they
are become moist and the bark soft
and spongy.--I know not of any
figure that has been given of it except
my own.
        