156 DR ROBERT KIDSTON ON THE 



Horizons and Localities. — Blue Measures, above Brooch Goal : Jubilee Pit, Sand- 

 well Park Colliery, West Bromwich : collected by Mr H. W. Hughes. Hamstead 

 Colliery, Great Barr, near Birmingham : collected by Mr Henry Insley. 



Samaropsis acuta L. & H., sp. 



1833. Cardiocarpum aculum, L. & H., Fossil Flora, vol. i. pi. lxxvi. 



-Remarks. — The most constant occurrence of Samaropsis acuta L. & H., sp., with 

 Eremopteris artemisisefolia Sternb., sp., early gave rise to the suggestion that they 

 belonged to that plant. The late Professor Duns, D.D., published a note in the Proc. 

 Roy. Soc, Edin., session 1871-72, p. 692, in which he pointed out the frequent associa- 

 tion of these seeds with Eremopteris artemisisefolia ; * but up to the present, as far as 

 I am aware, no specimens showing their organic connection have yet been discovered. 



Dr Arber figures some seeds under the name of Cardiocarpus acutus L. & H. 

 from the Kent Coal Field ; t but if the figure is an accurate representation of the 

 fossils, then his seeds must belong to another species. 



There are in my possession some specimens of Samaropsis acuta L. & H, sp., 

 which show considerable details of their internal organisation. These I hope to describe 

 at an early date. 



Horizon and Locality. — Roof of Stinking Coal: Clattershall Colliery, Brettell Lane. 



Samaropsis sp. 



Remarks. — This species is closely related to the Cardiocarpon elongatum Newberry. \ 

 but is slightly smaller. It is 1*10 cm. long and about 0'70 cm. wide; the pointed 

 nucule is 0'80 cm. long and 0'60 wide. The wing is only about 1 mm. wide near the 

 base, but increases in width upwards and where it extends past the nucule it is 2 "5 mm. 

 broad. The extreme apex of the wing seems to be rounded, but is slightly defective, 

 so it cannot be determined whether or not it is emarginate. I have only seen two 

 specimens, both collected at the same locality by Mr H. W. Hughes. 



Horizon and Locality. — Blue Measures, above Brooch Coal : Jubilee Pit, Sandwell 

 Park Colliery, West Bromwich. 



Tripterospermum Brongniart. 



1881. Tripterospermum, Brongt., Reciter, sur les graines fossiles silicifiees, p. 25. 

 Description. — Seed with a thick testa and three very prominent wings. When the 

 nut is deprived of the testa it generally presents the form of Trigonocarpus. 



* The specimens on which these observations were made were shown to me by the late Dr Duns. All those with 

 the associated Samaropsis acuta were the Eremopteris artemisiasfolia, and one of the specimens which he gave me on 

 that occasion is in my collection, No. 769. None of his specimens bore any locality, but from an examination of his 

 examples I believe they all came from the Northumberland or Durham Coal Field, as the matrix and general appear- 

 ance agree with specimens from that locality. 



t Quart. Journ. Geol. Soc, vol. lxv. p. 29, pi. i. fig. 5. (Enlarged 2 times.) 



X Geol. Survey of Ohio, vol. i. part ii., " Palaeontology," section iii. p. 373, pi. xliii. fig. 5, 1873. Lesqx., Coal Flora, 

 p. 567, pi lxxxv. fig. 41, 1879. 



