400 MR ROBERT KIDSTON ON THE FOSSIL PLANTS IN THE 



width of the stem is preserved, though it possibly may be at the two parts marked 

 with a + . 



1 at first regarded this specimen as the type of a new species, chiefly on account of 

 the subtriangular leaf-scars, but before raising it to that rank I forwarded a sketch of 

 the plant to Dr Weiss, Berlin, who kindly examined it, and now informs me that he 

 believes the " Eavenhead " specimen cannot be separated from Calamitina varians, var. 

 mconstans. He further states that he has observed the subtriangular form of the leaf- 

 scars on other specimens, and he believes it to be the result of pressure, which has 

 brought about a slight distortion. 



Calamitina (Calamites) varians, Sternb., var. 



Catamites varians, Sternb., Vers., ii. p. 50. 



Calamitina (Calamites) approximatus, Brongt. 



Catamites approximatus, Brongt. (in part), Hist. d. veget. foss., p. 133, pi. xxiv. figs. 2, 3, 4, 5. 



Group II. — Eu calamites, Weiss, 1884, Steinkohlen Calamarien, 



part ii. p. 96. 



Eucalamites (Calamites) ramosus, Artis. 



Catamites ramosus, Artis, Antedil. Phyt., pi. ii. 



Calamites (Eucalamites) ramosus, Weiss, Steinkotden Calamarien, part ii. p. 98, pi. ii. fig. 3 ; v. figs. 1, 2 



vi.; vii. figs. 1, 2; viii. figs. 1, 2, 4; ix. figs. 1, 2; x. fig. 1; xx. figs. 1, 2. 

 Calamites (Eucalamites) ramosus, Kidston, Trans. Roy. Soc. Edin., vol. xxxiii. p. 341. 

 Calamites nodosus, L. & H., Fossil Flora, vol. i. pis. xv., xvi. 



As foliage: — 



Annularia radiata, Brongt., Prodrome, p. 156. 



Group III. — S tylocalamites, Weiss, 1884, Steinkohlen Calamarien, 



part ii. p. 119. 



Stylocalamites (Calamites) Suckowii, Brongt. 



Catamites Suckowii, Brongt., Hist. d. vcget. foss., p. 124 (pi. xiv. fig. 6?), pi. xv. figs. 1-6; pi. xvi. 



figs. 2, 3, 4 (fig. 1 ?). 

 Calamites Suckowii, Geinitz, Vers. d. Steinkf. in Sadism., p. 6, pi. xiii. figs. 1-6. 

 Calamites Suckowii, Weiss., Steinkotden Calamarien, part i. p. 123, pi. xix. fig. 1, 1876 ; part ii. p. 129, 



pi. ii. fig. 1; pi. iii. figs. 2, 3; pi. iv. fig. 1; pi. xxvii. fig. 3 (1884). 

 Calamites Suckowii, Zeiller, Flore foss. du bassiri houiller de Valenciennes, p. 333, pi. liv. figs. 2, 3 ; 



pi. Iv. fig. 1. 



