^{page 344 note 1} I am indebted to Mr. Hemingway for these facts.

^{page 344 note 2} Prodrome d'une hist, des véget. foss. p. 51 (1828).Google Scholar

^{page 344 note 3} Hist, des végét. foss. plates 61 and 61 bis. (1828–1837).

^{page 345 note 1} Tableau des genres de végét. foss., considérés sous le point de vue de leur classification botanique et de leur distribution gélogique, p. 16 (1849).Google Scholar

^{page 345 note 2} Flora, Fossil, pl. 90 (1831–1837).Google Scholar

^{page 345 note 3} Flora, Fossil, vol. ii. p. 28.Google Scholar

^{page 345 note 4} Illust. of Fossil, Plants, p. 23, pl. 11.Google Scholar

^{page 345 note 5} Description of Fossil Plants in Geology of Pennsylvania, by Rogers, H. D., vol. ii. (1858).Google Scholar

^{page 345 note 6} Description of Fossil, Plants in Report Geol. Survey of Illinois, vol. ii. p. 427 (1866).Google Scholar

^{page 346 note 1} Palæontographica, vol. xviii. taf. xvii.Google Scholar

^{page 346 note 2} Ibid. p. 37.

^{page 346 note 3} de Pal. végét, Traité. pl. xxxv. (1869–74).Google Scholar

^{page 346 note 4} Zeitsch. der Deutsch. Geolog. Gesell. Band xxi. p. 521.Google Scholar

^{page 346 note 5} Ibid. taf. xvi. figs. 21–24.

^{page 346 note 6} Carb, Flore. du Depart, de la Loire, etc. p. 379 (1877).Google Scholar

^{page 346 note 7} Catalogue of the Pal. Plants in the British Museum, p. 90 (1886).Google Scholar

^{page 346 note 8} Ibid. p. 84.