72 PEOTOPTEKIS. 



The following list of synonyms of Protopteris punctata shows, to 

 some extent, the distribution of that characteristic type of tree-fern 

 in Lower Cretaceous times : how far we may consider this species 

 identical with, or very nearly allied to, the Wealden form is 

 difficult to determine. 



Protopteris punctata, Stemh. 



1820. Zepidodendron pzmctatum, Sternberg, Flor. Vorwelt, Heft i. p. 2Q, 



pi. YJ. pt. Tiii. fig. 2. 

 1822. Filieites ptmctatus, Martius, Denkschr. k. Baier. bot. Ges. toI. ii. 



Abth. i. p. 130. 

 1825. Zepidodendron pimctatitm, Sternberg, Tlor. Vorwelt, Heft iv. p. xii. 

 1828. Sigillaria pwnetata, Brongniart, Prodrome, p. 64. 

 1828. Sigillaria punctata, Brongniart, Hist. veg. foss. p. 421, pi. cxli. 



1835. Zepidodendron punctatum, Cotta, N. Jahrb. 1835, p. 326. 



1836. Caulopteris punctata, Goppert, Nova Acta Ac. Cses. Leop.-Car. vol. 



xvii. (Suppl.), p. 449. 

 1838. Frotopteris punctata, Sternberg, Flor. Vorwelt, Heft Tii. p. 170, 



pi. Ixv. figs. 1-3. 

 1845. Frotopteris Sternbergii, Corda, Flor. Vorwelt, p. 77, pi. xlviii. 

 1845. Frotopteris punctata, Unger, Syn. plant, foss. p. 107. 

 1848. Frotopteris ptmctata. Brown, Index Nomenol. p. 1047. 

 1850. Frotopteris Sternbergii, Unger, Gen. spec, plant, foss. p. 194. 



1865. Caulopteris punctata, Carruthers, Geol. Mag. p. 484, pi. xiii. 



1866. Frotopteris Deheyi, ScUiiter, Sitz. niederrbein. Ges. Bonn. p. 68. 

 1806. Caulopteris pumctata, Eeuger, Ziva, p. 126. 



1869. Frotopteris Sternbergii, Scbimper, Trait, pal. yeg. vol. i. p. 706, 



Atlas, pi. Hi. fig. 1. 



1870. Frotopteris Sternbergii, Eoemer, Geol. Obersobles. p. 300. 



1872. Frotopteris Sternbergii, Feistmantel, Abb. k. bobm. Ges. Wiss. vi. 



Folg. vol. T. p. 26, pi. ii. fig. 5. 

 1876. Frotopteris punctata, Geinitz, PaliEontographica, toI. xx. p. 304. 

 1875. Frotopteris punctata, Heer, Fl. foss. Arct. vol. ui. p. 8, pi. T. figs. 



1-2 ; pi. vi. 

 1880. Frotopteris punctata, Hosius and Von der Marck, Palseontographica, 



Tol. xxvi. p. 206, pi. xliii. figs. 185-186. 

 1882. Dicksonia [Frotopteris) punctata, Heer, Fl. foes. Arct. vol. vi. p. 24, 



pi. xlvii. 



1882. Frotopteris punctata, Scbmalbausen, Schrift. Kiew. nat. Ges. vol. vi. 



pt. ii. p. 216, pi. viil. 



1883. Frotopteris Sternbergii, Renault, Cours bot. foss. vol. iii. p. 75. 

 1888. Dicksonia ptmctata, Velenovsky, Abh. k. bobm. Gres. Wiss. vii. Folg- 



vol. ii. p. 20, pi. y. figs. 2-4. 

 1890. Dicksonia punctata, Staub, Foldt. Kozl. vol. xi. p. 227. 



