part 1] THE WESTPHALIAN, ETC. OF EAST GLAMOEQA^. 



63 



Staffordian Series only. 



Calamites approximatus. 

 Calamites carinatus, forma riigosus. 

 Calamites schutzeiformis, forma typi- 



cus. 

 Equisetites rugosus. 

 Asterophyllites radiata (vera ?). 

 Annularia galioides. 

 Calamite stem-leaves, 

 Splienophyllum einarginatum. 

 8p}xenop}iyllum trichotomosnin. 

 Lepidophloios laricinus. 

 Lexndophylhi/m acnleatiim. 

 Lepidophyllum acuminatum. 

 Lepidocystis fyaginiformis. 

 Sigillaria mulicauiis. 

 Sigillaria ovata. 

 Sigillaria sclilotlieimi. 

 Sigillaria xoalclii. 

 Sigillaria (with cone- scars) sp. 

 Sporangia of Sigillarian cone. 

 Neuropteris lonchitica. 

 Neuropteris ohtusifolia. 

 Splienopteris amcenia. 

 Sphenopteris artem,isixfolioides. 

 Splienopteris (Renaultia) charas- 



phylloides. 



Sphenopteris coem,ansi. 



Sphenopteris conwayi. 



Sphenopteris latifolia. 



Sphenopteris nenropteroides, 



Sphenopteris ohtusiloha (forma con- 

 vexiloha). 



Sphenopteris ohtusifolia (?). 



Sphenopteris renaulti (with fructifi- 

 cation). 



Sphenopteris rotundifolia. 



Sphenopteris cf. trifoliata. 



Sphenopteris sp. (showing fructifica- 

 tion). 



Odontopteris conivayi. 



Alloiopteris (Corynopteris) serrula. 



Pecopteris sp. 



Mariopteris cf. latifolia. 



Linopteris ohliqua. 



Dactylotheca sp. (?). 



Corynopteris coralloides. 



Alethopteris Integra. 



Trigonocarpon ohlongum. 



Cordaites borassifolius. 



Artisia transversa. 



Cordaianthus cordaicladus. 



Polipterocarpus ornatiis. 



Summary. 



From the foregoing list, it will be observed that 58 species are 

 comiQon to the Westphalian and Staffordian Series, 49 occur in 

 the Westphalian alone, and 47 are confined to the Staffordian 

 Series, thus making a total o£ 154. 



[The new genera that appear in the foregoing list of species, 

 which do not occur with the different genera enumerated in the 

 tables of the ecology, were found in an older collection of 1500 

 specimens which were brought together before 1 began to work 

 out the ecology. They are likewise not included in Tables I-XII 

 or figs. 2-11.] 



IV. Deductions as to Physical Conditions feom the 

 Floeal Analyses. 



We now may consider the question, whether the different 

 horizons which have been examined throw any light on the 

 physical conditions of the past : in other words, whether the plant- 

 remains found in the sediments give evidence of the distribution 

 of the plants that actually flourished on the surface. If the ques- 

 tion be answered in the affirmative, we can, with reservations, 

 draw certain deductions from the data received. 



It is only reasonable to infer that during the period Avhich 

 elapsed in forming the great thicknesses of shale and sandstone 

 in the Coal Measures, the physical conditions varied as time 

 went on. 



