18% Brongniart, Sur les Vegetaux Fossiles. 
3. Sphenophyllites—Leaves verticillate, cuneiform, 
truncated, with radiating dichotomous nerves. Analagous 
to the Marsileacew, (a family allied to the true ferns,) and 
although not referable to G. Marsilea, yetnear it. Found 
oniy in the coal and anthracite formations. 
4. Asterophyllites—Leaves verticillate, with a single 
nerve, linear, lanceolate. Not referable to any known fam- 
ily of plants; found only in the coal formations, except one 
species found in the superior formations, very unlike the 
more ancient specimens, and analogous to the G. Cerato- 
phyllam. 
5. Fucoides—Frond not symmetrical, often disposed on 
the same plane; nerves wanting or indistinct—distinctly 
referable to the unarticulated Alge or Fuci. A few species 
are found in the superior formations, very similar to exist- 
ing Genera and even species; found principally at Monte 
Bolca in the Veronese, a limestone formation abounding in 
remains of fishes. In the inferior sediment found with great 
masses of carbonated exogenite, in Isle d’Aix. Alsoinsever- 
al localities in France, Italy and Austria, all similar in their 
geological character. These three classes of Fucoides are 
entirely distinct. ‘They are not found in the coal forma- 
ent nerves are rather referable to certain monocotyledonous 
families, viz. Aroides, Piperacee, Dioscorew, &c. The 
might form a distinct Genus. The Phyllites are found only 
in the superior formations accompanying the Exogenites. 
They are analogous to none of the plants now growing in- 
Europe, and rather belonged to trees and shrubs than 
2 be 
7. Poacites—Leaves linear, with parallel nerves. These 
Genus or species. They all belong to the existing division 
with flabelliform leaves, while the fossile fraite of palms 
