NO, 24. Jongmans, List of species of Calamites and figures (1915). 41 
C. species Kidston et Jongmans, Monograph, 1915, Pl. 38, fig. 3 
(C. wedekindi Weiss, Steink. Calam., II, 1884, p. 89). 
Calamites species. 
C. species K. et J., Monograph, 1915, Pl. 90, tig. 1. 
Calamites species. 
C. species K. et J., Monograph, 1915, Pl. 139, fig. 1. 
Calamites species. 
C. species K. et J., Monograph, 1915, Pl. 52, fig. 1 (C. verticillatus 
Zeiller, Valenciennes, 1886, PL. 57, fig. 2). 
Calamites species. 
(Ausgegeben am 6. März 1915.) 
