have successively occupied the surface of the Earth. 351 



of its precise geological epoch and the totality of vegetable spe- 

 cies it comprehends. The most abundant and most characteristic 

 of these species is the Rhodomelites strictv^, the branches of which, 

 interlaced and mixed with Zosterites, constitute the mass of these 

 lignites, with the vv ood of Coniferse, which have not yet been stu- 

 died, and the little, very rare, branches of Brachyphyllum Orbi- 

 gnianum. 



I have inserted in this epoch the two species of Cystoseirites 

 described by M, de Sternberg, and indicated by him as found 

 in beds between the Jurassic schists and the chalk in Transyl- 

 vania. Does this fossil flora correspond to a formation almost 

 entirely marine, but contemporaneous with the Wealden epoch ? 

 This can only be decided by new investigations, but the analogy 

 of the Brachyphylla of the two epochs leads to such a supposition. 



2. Cretaceous Epoch. 



Amphigrenons Cryptogams. 



Confervites fasciculata,Br. — Bomh., 

 England. 



segragropiloides, Br. — Bomh. 



Woodwardii, Mant. — England, 



Norfolk. 



Sargassites Lyngbyanus, Br. — 

 Bomh. 



HalyseritesReichii,Sfer»6. — Nieder- 

 schona. 



Chondrites furcellatus, Bikn. — Sax- 

 ony, Beauvais. 



Mantelli, Rom. — Saxony. 



Targionii, Brong. — Beauvais. 



cylindricus, Sternb. — Teschen ; 



Bohemia. 



Doubtful AlgcB. 



Fucoides Brongniartii, Mant. — Sus- 

 sex. 

 Cylindrites, of Goppert, 3 species. 



Acrogenons Cryptogams. 



Ferns. 



Protopteris Singeri, Presl. — Silesia. 



Buvignieri, Br. — Grandpre. 



Pecopteris Reichiana, Br. — Nieder- 



schona. 



striata, Sternb. — Sahla. 



bohemica. Cor da. — Bohemia. 



Zippei, Corda. — Bohemia. 



lobifolia, Corda. — Bohemia. 



And two new species from Nieder- 



schona. 



Monocotyledons. 



Palms. 



Flabellaria chamseropifoUa, Gopp. — 



Silesia. 

 Palmacites varians, Corda. — Boh. 



Gymnospermous Dicotyledons. 

 Cycade^. 



Cycadites NUssonianus, Br. — Sca- 

 nia. 



Zamites cretacea, Br. — N. Schona. 

 (Pteroph. cretaceum, Rossm.) 



Microzamia gibba, Corda. — Boh. 



Zamiostrobus ovatus, Gbpp. — En- 

 gland. 



famiUaris (male cone). — Bo- 

 hemia. 

 (Zamites famiharis, Corda.) 



Guerangeri (male cone). — Le 



Mans. 



CONIFEK^. 



* Cupressinese. 



"Widdringtonites fastigiatus, Endl. — 



Bohemia. 

 Cryptomeria primaeva, Corrfa. — Boh. 



** Abietineae. 



Abietites Benstedi. — Gopp. 



oblongus, hindl. — Lyme-Regis, 



Grandpre. 



exogyrus, Corda. — Bohemia. 



Pinites Reussii, Corda. — Bohemia. 



