12 Mededeelingen van ’s Rijks Herbarium Leiden: 
C. communis Ett., Radnitz, 1854, Pl. 3, fig. 1, 3; Pl. 4, fig. 1, 3. 
C. undulatus Sternb. 
C. communis Ett., Radnitz, 1854, Pl. 8, fig. 2, 3. 
C. distachyus Sternb. 
C. communis Ett., Radnitz , 1854, Pl. 8, fig. 1, 4. 
Palaeostachya ettingshauseni Kidston. 
C. communis Ett., Radnitz, 1854, Pl. 4, fig. 2; Pl. 5; Pl. 9; PL. 10. 
Indeterminable. 
C. communis Ett., Radnitz, 1854, Pl. 4, fig. 5; Pl. 6; Pl-7, 
ef. Sphenophylium myriophyllum Crépin. 
C. communis Feistm., Abh. k. Böhm. Ges. d. Wiss.. (6), Il, 1869, 
PIRA 0D ARE C. undulatus Sternb. 
C. communis Feistm., Abb. k. Böhm. Ges. d. Wiss., (6), II, 1869, 
JE 4 halo JA Indeterminable. 
C. (Calamophyllites) communis Grand’ Eury, Gard, 1890, Pl. MM, 
fig. 2, 3 (JONGMANs, Anl., I, 191, fig. 105, 106). Doubtful. 
C. commuris Seward, Fossil Plants, [, 1898, fig. 74 A, 75, 76. 
Anatemy. 
C. communis Scott, Studies, 1900 and 1908, fig. 8, 9. 
Anatomy. 
C. communis Zalessky, Bull. Soc. russe d'amis d'études de l'Univers, 
1919, II, fig. 3. Anatomy. 
C. concentricus Cotta, Dendrol., 1832. PL. 16, fig. 2—5. 
Anatomy; doubtful. 
C. (Calamodendron) congenius Grand’ Eury, Loire, 1877, p. 201. 
C. multiramis Weiss. 
C. (Calamodendron) congenius Renault, Commentry, II, 1888—90, 
Pl. 56, fig. 3. C. multiramis Weiss. 
OC. (Calamodendron) congenius Renault, Autun et Epinac, IL, 1896, 
Pl. 59, fig. 1 (copied 1898, Pl. 2, fig. 1). Anatomy. 
C. (Calamodendron) congenius Renault, Notice sur les Calamar., IL, 
1898, Pl. 7 bis, fig. 3 (copied from 1888). 
C. multiramis Weiss. 
C. cottaeanus Sternberg, Versuch, IL, 5, 6, 1835, p. of. Anatomy. 
C. erassicaulis Renault (Macrostachya crassic. Renault). 
‚ eruciatus Sternb. 
C. cruciatus Bget., Histoire, 1, 1828, PI. 19. 
C. brongniarti Sternb. 
C. eruciatus Gutbier, Zwickau, 1835, Pl. 2, fig. 9, 10, 12, 13, 16. 
2C. multiramis Weiss. 
C. eruciatus Sap. et Mar., Evol., Phanér., 1, 1885, fig. 13. 
C. multiramis Weiss. 
