PALEONTGLOGIC NOTES FLORA 169 



plants was in 1854, when Professor Newberry* described without figures 

 a large number of forms collected by him from roof shales of the Sharon 

 coal bed in northern Ohio. Simultaneously Mr Lesquereuxf was en- 

 gaged in the study of remains collected within the Anthracite region 

 of Pennsylvania ; but his results were not announced until 1856, when 

 they appeared in preliminary form, the final publication being in 

 1858. His collections were incomplete and the locality labels, ap- 

 parently, were not always correct; but the work was marked by great 

 care and his figures by exactness. Unfortunately the species, of which 

 the range was known only imperfectly, were used in correlating the coal 

 beds of Pennsylvania and Kentucky, with results so erratic that for a 

 long time the testimony of plant remains was thought to be of little 

 service in correlation. In 1873 Professor Newberry J described and 

 figured a few forms from the Sharon horizon, one of which, belonging 

 to a new genus, seemed to be somewhat closely allied to Tceniopteris; 

 and two years later Professor Andrews § gave figures and descriptions of 

 17 new species obtained in Perry county of Ohio, at the very bottom of 

 the Ohio Coal Measures as then limited. This flora is described as 

 having close affinity with the Devonian, while, like that described by 

 Newberry, it yields a new genus, thought to belong to the Tseniopteridse. 

 In the interval Professor Fontaine ] | had collected a few forms from the 

 Sewell coal bed of New river, West Virginia, and had emphasized the 

 Devonian aspect of the flora. In 1876 Mr Lesquereux If published, 

 without figures, a list of species obtained in eastern Alabama from the 

 lower portion of the Coal Measures of that state, and recognized the 

 forms as older than the '^TMillstone grit," apparently the same with the 

 Sharon conglomerate, which he seems to have regarded as the basal mem- 

 ber of the Upper Carboniferous. He lays stress upon the intimate 

 relationship of some of the forms to Devonian t3rpes. In 1880 was pub- 

 lished Mr Lesquereux's** descriptive catalogue of Coal Measures plants, 

 in which are enumerated 599 species and varieties then known in the 

 United States. A table showing the vertical distribution of the forms 

 brings out clearly the fact that the flora of the New Elver beds is not 

 related to that of post-Sharon beds in Ohio, and that it has much in com- 



* .J. S. Newberry : Annals of Science, vol. ii. 



t L. Lesqueren : Proc. Bost. Soc. of Nat. Hist.. Geology of Pennsylvania, vol. ii, pp. 

 837-884. 



t .T. S. Newberry : Palceontology of Ohio. vol. i, pp. 359. 



§ E. B. Andrews : Pala?ontology of Ohio, vol. ii. p. 415. 



II W. M. Fontaine : The Great Conglomerate. Am. Jour. Sci., iii, vol. vii, d. 574. 



If L. Lesquereux : Geological Survey of Alabama, Rept. for 1875, p. 75. 



** L. Lesquereux : Description of the coal flora of the Carboniferous formation in 

 Pennsylvania and throughout the United States, vol. 1. 



