182 Brongniart, Sur les Vagetaux Possiles. 



3. Sphsenophjllites — Leaves verticDIate, cuneiform^ 

 truncated, with radiating dichotomous nerves. Analagous 

 to the Marsileaceai, (a family allied to the true ferns,) and 

 although not referable to G. Marsilea, yet near it. Found 

 only 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 ihe 

 more ancient specimens, and analogous to the G. Cerato- 

 phyllinn. 



5. Fucoides — Frond not symmetrical, often disposed on 

 the same plane ; nerves wanting or indistinct — distinctly 

 referable to the unarticulated Algas 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 forn^a- 

 iions. 



6. Phyllites — Leaves with distinct nerves, many times 

 divided or anastomosed. Far the greater part are refera- 

 ble to dicotyledonous plants — a few specimens with conflu- 

 ent nerves are rather referable to certain monocotyledonous 

 families, viz. Aroides, Piperaceae, Dioscoreas, &c. They 

 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 

 to herbs. They are scarcely ever amplexicaul. 



7. Poacites — Leaves linear, with parallel nerves. These 

 belong to many families of monocotyledonous plants, such 

 as the grasses, sedges, flags, typhjB, &c. They are found in 

 the superior formations, and more abundantly in the coal 

 formations. The two classes are very distinct. 



8. Palmacites — Leaves flabelliform — distinctly referable 

 tft the palms. They cannot yet be referred to any known 

 Genus or species. They all belong to the existing division 

 with flabelliform leaves, while the fossile fruits of palm's 



