VEGETABLE KINGDOM. 



In the first edition of this work, no attempt was made to arrange tlie fossils of the 

 vegetable kingdom, represented in the palasozoic rocks, into classes, orders, or families, 

 for reasons then expressed ; since that time, however, the work of Leo Lesquereux on 

 the coal flora of Pennsylvania has rendered possible a classification which will be of 

 some utility, though only approximately correct. • 



CELLULAR CRYPTOGAMOUS PLANTS. 



CLASS FUNGI.— Rhizomorpha. 



CLASS THALASSOPHYTES.— Arthraria, Arthrophycus, Asterophycus, Blastophy- 

 cns, Buthotrephis, C^alamophyous, Chondrites, Conostiohus, tiruziana, Dactylo- 

 phycus, Discophycus, Dystactophycus, Eophyton, Heliophycus, Hippodophycus, 

 Ichnophycus, Licrophyeus, Palajoohorda, Palsophycus, Phytopsis, Protostigma, 

 Eusophycus, Sphenothallus, Taonurus, Trichoishycus. 



VASCULAR CRYPTOGAMOUS PLANTS. 



GLASS EQUISETACE2E. — Anarthrocanna, Annularia, Arthrostigma, Asterophyl- 



lites, Bechera, Bornia, Calamites, Calamodendron, Calamocladus, Calamostachys, 



Equisetites, Macrostachya, Nematophyllum, Solenoula, Sphenophyllum. 

 CLASS FILICACE.E (ferns). 

 ORDEK NEUROPTEKIDS. — Danasites, Dictyopteris, Idiophyllum, Lesleya, Lon- 



chopteris, Jlegalopteris, Neriopteris, Neuropteris, Odontopteris, Orthogoniopteris, 



Tasniopteris. 

 ORDER ALETHOPTEEIDS. — Alethopteris, Callipteris, Calllpteridium, Lescurop- 



teris, Protoblechnum. 

 ORDER PSEUDOPECOPTERIDS.— Pseudopecopteris. 

 ORDER PECOPTERIDS. — Asterocarpus, Cymoglossa, Goniopteris, Oligooarpia, Pe- 



copteris. 

 ORDER SPHENOPTEEIDS.— Asplenites, Eremopteris, Sphenopteris. 

 ORDER ADIANTITES.— Aneimites, Archseopteris, Cyclopteris, Triphyllopteris. 

 FERNS OF UNCERTAIN AFFINITY.— Crematopteris, Hymenophyllites, Pachyp- 



teris, Rhacophyllum. 

 EACHIS OF FERNS.— Rhachiopteris. 

 RHIZOMAS OF FERNS.— Rhizomopteris, Stigmarioides. 

 SEPARATE FRUCTIFICATIONS OF FERNS.— Sorocladus. 

 STEMS OR TRUNKS OF FERNS.— Caulopteris, Megaphytum, Psaronius, Stemma- 



topteris. 

 CLASS LYCOPODIACE^E.— Arthrostigma, Cyclostigma, Dechenia, Diplostegium, 



Glyptodendron, Halonia, Knorria, Lepidocystis, Lepidodendron, Lepidophloios, 



Lepidophyllum, Lepidostrobus, Leptophloeum, Lycopodites, Psilophyton, 



Polyporites, Sporocystis, Sternbergia, Ulodendron. 

 ORDER T.5:NI0PIIYLLE^E.— Tiiemophyllum. 

 ORDER SIGILLARIxE.— Didymophyllum, Pinnularia, Rhizolithes, Sigillaria, Sigil- 



larioides, Stigmaria, Syriiigodendron, 

 ORDER NCEGGERATHI^E.— Nceggerathia, Whittleseya. 

 CLASS CORDAITE^-E. — Antbolithes, Cardiocarpon, Carpolithes, Cordaianthug, Cordai- 



carpus, Cordaites, Cordaistrobus, Desmiophyllum, Dioranophyllum, Guilielmites, 



Lepido'xylon, Rhabdocarpus, Trigonocarpum. 

 CONIFER^E ( ?) — jVraucarites, Baiera, Dadoxylon, Nematoxylon, Ormoxylon, Proto- 



taxites, Saportica, Syringoxylon, Walchia. 

 PLANTS OF UNCERTAIN AFFINITY. — Acanthoi^hyton, Asteropteris, Cellu- 

 ' "loxylon, Palseoxyris, Spirangium, Sporangites. 



