150 TEMPSKYA. 
stem above, and the lower petioles would have been long dis- 
organized, as in the lower parts of living tree-fern stems. 
Possibly, writes Stenzel, Corda’s petioles may belong to thin and 
creeping fern stems, and the roots might possibly be referred to 
the same creeping axes; but, he adds, such an explanation is hardly 
probable. Lastly the possibility is suggested that some of the 
petioles may have belonged to rhizomes creeping amongst the root- 
mass of a Protopteris stem, as in the case of Zygopteris scandens 
between the roots of Psaronius.' 
Tempskya Schimperi, Corda. 
1824. Endogenites erosa, Stokes and Webb, Trans. Geol. Soe. ser. ii. vol. i. 
p. 423, pl. xlvi. figs. 1 and 2; pl. xlvii. fig. 5. 
1828. Endogenites erosa, Martin, Geol, Mem. Sussex, p. 41. 
1833. Endogenites erosa, Mantell, Geol. 8.E. England, p. 236, pl. i. figs. 
4, 5 and 7. 
1836. Endogenites erosa, Fitton, Trans. Geol. Soc. ser. ii. vol. iv. p. 172, 
pl. xix. and xx. 
1845. Protopteris erosa, Unger, Syn. plant. foss. p. 107. 
1845. Tempskya Schimperi, Corda, Flor. Vorwelt, p. 83, pl. lix. figs. 1-2. 
1846. Endogenites erosa, Dunker, Wealdenbildung, p. 17, pl. iil. fig. 1. 
1846. Sedgwickia yuccoides, Dunker, ibid. p. 84. 
1847. Endogenites erosa, Mantell, Geol. Excurs. I. Wight, p. 288. 
1848. Endogenites erosa, Bronn, Index pal. nomencl. vol. i. p. 461. 
Sedgwickia yuccoides, Bronn, ibid. vol. ii. p. 1182. 
1849. ? Protopteris erosa, Brongniart, Tableau, p. 107. 
1849. Protopteris erosa, Gutbier, Verstein. Roth. Sachsen. p. 17. 
1850. ? Porosus marginatus, Cotta, Dendrolithen, p. 41, pl. viii. figs. 4 and 5. 
1850. Zempskya Schimperi, Unger, Gen. spec. plant. foss. p. 201. 
1851. Zempskya Schimperi, Bronn and Roemer, Leth. geog. Th. iv. p. 46, 
pl. xxviii. fig. 8. 
1852. Tempskya Schimperi, Ettingshausen, Abh. k.-k. geol. Reichs. vol. i. 
Abth. iii. No. 2, p. 19. 
1854. Hndogenites erosa, Morris, Brit. foss. p. 8. 
1866. Tempskya Schimperi, Renger, Ziva, p. 45. 
1869. Zempskya Schimperi, Schimper, Trait. pal. vég. vol. i. p. 698. 
1871. Zempskya Schimperi, Schenk, Paleeontographica, vol. xix. p. 259, 
pl. xlii. fig. 4; pl. xlii. 
1878. Tempskya Schimperi, Dixon, Geol. Sussex, p. 282. 
1888. Zempskya Schimperi, Velenovsky, Abh. k. béhm. Ges. Wiss. vii. Folg. 
vol. ii. p. 23. 
1 Die Gattung Tubicaulis, Bib. bot. Haenlein und Uhlworm, Heft xii. 1889, 
p. dl. 
