330 MR ROBERT KIDSTON ON THE 



Cordaites, Unger. 

 Cordaites, sp. 



Horizon : —At a depth of 533 yards. 



Cardiocarpus, Brongt. 

 Cardiocarpus Meachemii, Kidston, n. sp., figs. 5-7. 



Description. — Seed cordate, about 13 mm. broad, 13 mm. long, base emarginate, 

 apex acute. Nucule cordate, central, with a medial line extending from the base to the 

 apex. Wing about 4 mm. broad. 



Remarks. — Several of these little seeds are given on figs. 5-7. That at fig. 5a 

 shows the outline of the seed, but the form of the nucule is not clearly defined ; 

 this deficiency is supplied by the isolated nucule given at fig. 7. The margin of the 

 specimen shown at fig. 6 is not distinctly exhibited in the fossil, but there is an indica- 

 tion of a line surrounding the nucule, about halfway between the nucule and the margin 

 of the wing. The apparent emarginate apex of fig. 5b is the result of an accidental 

 splitting of the testa. 



Cardiocarpus Meachemii is closely allied to the Cardiocarpus figured by Feistmantel 

 as C. emarginatum, Gopp. and Berger (not Brongt. ), # and differs only in its smaller size. 

 My chief reason, therefore, for applying a new name to the Hamstead seeds is the 

 circumstance that there is little evidence to show that the specimens figured by Feist- 

 mantel are similar to the Cardiocarpum emarginatum, Gopp and Berger t — in fact, 

 from the imperfect nature of the figures given by these authors, it seems impossible to 

 arrive at what are the true characters of their species. 



Should Feistmantel's specimens eventually prove to be specifically similar to my 

 Cardiocarpus Meachemii, his fossils might be distinguished as var. major. 



I have pleasure in naming this seed after Mr F. G. Meachem. 



Horizon: — In Blue Bind, at a depth of 533 yards. 



Carpolithus, Sternb. 



Carpolithus ovoideus, Gopp. and Berger, sp. 

 Fig. 8. 



Rhabdocarpus (?) ovoideus, Weiss, Foss. Flora d.jungst. Stk. u. d. Rotld., p. 206, pi. xvii. fig. 4; pi. xviii. 



figs. 10-14, 18-21. 

 Rhabdocarpus ovoideus, Gopp. and Berger, De frudibus et seminibus, p. 22, pi. i. fig. 17. 

 Rliabdocarpus ovoideus, Goppert, Foss. Flora d. Perm. Form., p. 173, pi. xxvii. figs. 9, 10. 

 Rhabdocarpus Germarianus, Goppert, Foss. Flora d. Perm. Form., p. 270, pi. lxiv. fig. 14. 

 Carpolithus memh-anaceus, Gopp. and Berger, De frudibus et seminibus, p. 25, pi. ii. figs. 19, 20. 

 Carpolithus membranaceus, Goppert, Foss. Flora d. Perm. Form., p. 178, pi. xxix. figs. 19-21. 

 (?) Carpolites ellipticus, Sternb., Vers., i. fasc. 4, p. xl. pi. vii. fig. 1. 

 (?) Carpolites regularis, Sternb., Vers., i. fasc. 4, p. xl. pi. vii. fig. 2. 



* Vers. d. Bohmisclien Kohlenabluyerungen, Abeth. ii. p. 46, pi. xx. figs. 4-6. 

 X Gopp. and Beiger, JJe frudibus et seminibus, p. 24, pi. iii. fig. 35. 



