A Pictorial Atlas of Fossil Remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology."

by Gideon Algernon Mantell

The generic characters are, "Stem, arborescent, jointed, branched; leaves, long, linear."

In the arrangements of Schlotheim and Brongniart, who consider only the construction of the leaves, these plants would belong to the genus Poacites.

The species figured is named Hydatica columnaris, or Columnar Hydatica. The stem is branched all the way up, and ends in a club-like head; the branches are numerous, simple, alternate, and covered with parallel hair-like leaves.

Fig. 1. The plant of the natural size, imbedded in coal-shale; fig. 2, a branch magnified, showing; the two linear series in which the leaves are arranged.

Plate XI.

PLATE XI.