File:The Quarterly journal of the Geological Society of London (13365826194).jpg

1850..
BUCKMAN ON LIAS PLANTS.
415
of Strensham, Worcestershire, and has been named in honour of the
intelligent investigator of the insect remains of the bed whence it was
obtained.
NAiADACEiE. Delicate parallel-veined freshwater Endogens, leaves
simple, pellucid — ^much like those of the Potamogeton or Pond-
weed — ^parallel-veined, without stomata.
Remains of these plants occur in great quantity in a thin band of
limestone associated with the Insect bed, which from the prevalence
of these vegetables has been named the *' Plant bed " by Brodie,
The three forms indicated below are found intermixed and crossing
each other in the slabs of stone when split up, and along with them
are sometimes innumerable specimens of Cypris and Cyclas. The
species are distinguished by the following characters : —
1. Naiadita lanceolata, Brodie*. Leaves sessile, lanceolate-
acuminate. Fig. 2.
2. Naiadita obtusa, Buckman. Leaves sessile, ovate, somewhat
blunt at the apex. Fig. 3 a,b.
3. Naiadita petiolata, Buckman. Leaves ovate-lanceolate, on
short petioles. Fig. 4.
Fig. 4.
Magnified 6 times.
Magnified about 6 times.
The specimens from which the figures were taken were obtained
from Bristol. These are the most abundant plants in the bed, and
are found to a greater or less extent throughout its range. They are
from the Rev. P. B. Brodie' s cabinet.
CuPRESSUs? latifolia, Buckman. Leaves closely appressed to the
stem, broad at the base, apex bluntly pointed, dorsum elevated so
as to give the leaves a sharp triangular outline on a transverse
section. Fig. 5.
This no doubt belongs to the Cypress or a near ally. It has much

• Fossil Insects, p. 92 et seq. and Murchison's Geology of Cheltenham, 2nd ed.