FOSSILS OF THE PERMIAN SYSTEM. 
PLANTS. 
Tue Phytological Division of Organic Nature has only a few known representa- 
tives in the Permian System of England, and these belong exclusively to the lowest 
classes. 
SuB-KINGDOoM CRYPTOGAM A. 
Guided by the classification and nomenclature of M. Adolphe Brongniart and 
Dr. Lindley, it is intended to separate this sub-kingdom into the two large groups or 
classes, Thallogene and Acrogene, as proposed in the latest publications of these 
writers." 
Class THALLOGEN&, Lindley. 
CrLiuuLargs, De Candolle. 
Les CryprocamMeEs CELLULEUSES, dd. Brongniart. 
CrypropHyta, Link. 
TuaLLtopuyta, Kndlicher. 
AMPHIGEND, Ad. Brongniart. 
TuaLtocEens, Dr. Lindley. 
Diagnosis.—“ Stems and leaves undistinguishable.”” (Lindley.) 
The whole of the plants stationed in this class are remarkable for the extreme 
simplicity of their structure. They are mere masses of cells, having no wood, properly 
so called, although in the case of some sea-weeds and funguses, they must acquire 
considerable age.° 
' Enumeration des Genres de Plantes cultives au Muséum d’Histoire Naturelle de Paris, &c., by 
M. Adolphe Brongniart, 1843 ; and The Vegetable Kingdom, by Dr. Lindley, 1847. 
2 The Vegetable Kingdom, p. 5, 1847. 
3 Idem, p. 5, 1847. 
