72 PBOTOPTERIS. 



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, Sternb. 



1820. Lepidodendron punctatum, Steinberg, Flor. Vorwelt, Heft i. p. 20, 



pi. vi. pt. viii. fig. 2. 

 1822. Filicites punctatus, Martins, Denkscbr. k. Baier. bot. Ges. vol. ii. 



Abth. i. p. 130. 



1825. Lepidodendron punctatum, Sternberg, Flor. Vorwelt, Heft iv. p. xii. 

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

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



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



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



xvii. (Suppl.), p. 449. 

 1838. Protopteris punctata, Sternberg, Flor. Vorwelt, Heft vii. p. 170, 



pi. Ixv. figs. 1-3. 



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

 1845. Protopteris punctata, linger, Syn. plant, foss. p. 107. 

 1848. Protopteris punctata, Brown, Index Nomencl. p. 1047. 

 1850. Protopteris Sternbergii, linger, Gen. spec, plant, foss. p. 194. 



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



1866. Protopteris Debeyi, Schluter, Sitz. niederrbein. Ges. Bonn. p. 68. 

 1866. Caulopteris punctata, Reuger, Ziva, p. 126. 



1869. Protopteris Sternbergii, Schiraper, Trait, pal. veg. vol. i. p. 706, 



Atlas, pi. lii. fig. 1. 



1870. Protopteris Sternbergii, Roemer, Geol. Oberschles. p. 300. 



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



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



1875. Protopteris punctata, Geinitz, Palseontographica, vol. xx. p. 304. 

 1875. Protopteris punctata, Heer, Fl. foss. Arct. vol. iii. p. 8, pi. v. figs. 



1-2 ; pi. vi. 

 1880. Protopteris punctata, Hosius and Von der Marck, Palaoontograpbica, 



vol. xxvi. p. 205, pi. xliii. figs. 185-186. 

 1882. Dicksonia (Protopteris) punctata, Heer, Fl. foss. Arct. vol. vi. p. 24, 



pi. xlvii. 



1882. Protopteris punctata, Schmalhausen, Scbrift. Kiew. nat. Ges. vol. vi. 



pt. ii. p. 216, pi. viii. 



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

 1888. Dicksonia punctata, Velenovsky, Abb. k. bobm. Ges. "Wiss. vii. Folg- 



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

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



