NO, 24, Jongmans, List of species of Calamites and figures (1915). 19 
C. infractus Gümbel, Beitr. z. Flora der Vorw.. 1860, PI. 8, fig. 8. 
Indeterminable. 
C. infractus Geinitz, Dyas, II, 1862, PI. 25, fig. 3, 4. 
Indeterminable. 
C. infractus Twelvetrees, Q.J.G.S.., London, XXXVII, 1882, PI. 20, 
fig. 2. Indeterminable. 
C. infractus Sterzel, Dames u. Kayser’s Palaeont. Abh., III, 4, 1886, 
BS, he. 1. Indeterminable. 
C. imfractus Gutb. var. leioderma Sandberger, Würzburger naturw. 
Zeitschr., VI, 2, 1866, Pl. 5, fig. 4, 5. Indeterminable. 
C. (Calamophyllites) ingens G. E., Loire, 1877, p. 40. No figure. 
Indeterminable. 
C. inornatus Dawson, Q. J.G. S., London, XVII, 1862, PI 17, fig. 5, 6. 
Asterocalamites radiatus Bgt. 
GC. insignis Sauveur, Belgique, 1848, Pl. 13, fig. 1, 2; JONGMANS, 
Anl., I, 1914, fig. 162. Indeterminable. 
0. insignis (Weiss) Renier, Documents, 1910, Pl. 42, 
Indeterminable. 
C. (Calamodendroxylon) intermedius G. E., Loire, 1877, p. 292. No figure. 
Indeterminable. 
CO. (Calamodendron) intermedius Renault, Autun et Epinac, II, 1896, 
Pl. 59, fig. 2, 3; id, Notice sur les Calam., III, 1898, PI. 24, fig. 
2, 3; Scorr, Studies, 1900, 1908, fig. 10; Sewarp, Fossil Plants, 1, 
1898, fig. 84. Anatomy. 
C. interruptus Schloth., Petrefactenkunde, 1820, Pl. 20, fig. 2. 
Indeterminable. 
C. interruptus Schloth., Merkw. Verstein., 1832, PL. 4, fig. 2. 
Asterophyllites equisetiformis Schl. 
C. intumescens Achepohl, Niederrh. Westf. Steink., 1885, PL 36, fig. 7. 
C. undulatus Sternb. 
C. (Calamodendroxylon) inversus G. E., Loire, 1877, p. 293. No figure. 
Indeterminable. 
C. ùregularis Achepohl, Niederrh. Westf. Steink., 1882, PL. 28, fig. 2. 
C. suckowi Bgt. 
C. irregularis Kutorga, Beitr. z. Keuntn. der organ. Veberreste des 
Kupfersandsteins, 1838, PI. 6, fig. 3. Indeterminable. 
C. jaegeri Sternb. Triassic. 
C. jubatus L. et H. 
C. latecostatus Sternb. (cf. Scurmper, Traité, 1, p. 284). Î 
GC. lateralis Phillips. Jurassic. Equisetites columnaris Bgt. (Seward). 
C. laticostatus Ett., Dachschiefer, 1866, PL. 3, fig. 1. 
Asterocalamites radiatus Bgt. 
