[14] History of the Fossil Fruits and Seeds of the London Clay. Van Voorst, London, 1840.

Figs. 6, 7, & 8. Specimens of a seed-vessel, or nut, of an unknown plant, often found in the strata of the coal measures. It is called Trigonocarpum olivæforme, from its general shape. From Leicestershire; it probably belongs to a plant of the Palm family.


Plate VIII.

PLATE VIII.

Petrified Stems and Woods.