NO, 24, Jongmans, List of species of Calamites and figures [1915] 35 
C. varians Achepohl, Niederrh. Westf. Steink., Erg. Bl. IL, 1883, 
fig. 24, C. undulatus Sternb. 
C. varians Grand’ Eury, Gard, 1890, PI. 14, fig. 2, 3. 
Indeterminable. 
C. varians Zeiller, Brive, 1892, PI. 11, fig. 4. 
C. undulatus Sternb. 
C. varians Renault, Autun et Epinac, II, 1896, Pl. 54, fig. 9; id., 
Notice sur les Calam., LI, 1896, PI. 9, fig. 9. 
C. schützeiformis forma typicus K. et J. 
C. varians Hofmann et Ryba, Leitpflanzen, 1899, PI. 1, fig. 1. 
C. goepperti Ett. 
C. varians Hofmann et Ryba, Leitpflanzen, 1899, PI. 1, fig. 2. 
C. undulatus Sternb. 
C. varians Arber, Fossil Plants, 1909, PL. on p. 54. 
Indeterminable. 
C. varians Renier, Documents, 1910, PIL. 45; C. (Calamitina) varians 
Renier, Méthodes, 1908, fig. 17. C. goepperti Ett. 
C. varians Jongmans, Anleitung, 1, 1911, fig. 73; ArBer. Phil Trans. 
Roy. Soe. London, B. CCII, 1912, Pl. 48, fig. 15. 
; C. schützeiformis forma intermedius K. et J. 
C. varians Arber, Phil. Trans. Roy. Soc. London, B. CCII, 1912, 
Pl. 13, fie. 16. 2 C. psendogermarianus K. et J. 
C. (Endocalamites) varians Grand’ Eury, Loire, 1877, Tabl. A IV. 
Indeterminable. 
C. varians abbreviatus Weiss, Steink. Calam, II, 1884, Pl. 16a, lig. 
dori, C. goepperti Ett. 
C. varians eruciatus Kidston, Catalogue, 1886, p. 32. 
C. eruciatus Sternb. 
C. varians inconstans Weiss, Steink. Calam., IL, 1884, Pl. 16a, fig. 7, 
GE Pl:7 25, fig. 2. C. goepperti Ett. 
C. varians inconstans Weiss, Steink. Calam., IL, ISS4, Textf. on p. 71. 
C. undulatus Sternb. 
C. varians inconstans Kidston, Trans. Roy. Soc. Edinb., XXXV, 1889, 
EU os, 1 A C. goepperti Ett. 
C. varians cf. inconstans Weiss, Steink. Calam., 1, 1884, PL. 28, fig. 4 
C. schützeiformis forma typicus K. et J. 
C. varians insignis Weiss, Steink. Calam., II, 1884, PI. 4, fig. 1. 
C. undulatus Sternb. 
C. varians insignis Weiss, Steink. Calam., II, 1884, PL 4, fig. 2—6. 
Indeterminable. 
C. varians insignis Weiss, Steink. Calam., Il, 1884, PI. 28, fig. 1. 
? C. undulatus Sternb, 
