162 DR ROBERT KIDSTON ON THE 



Remarks. — Some very fine specimens of this seed have been given me by 

 Mr H. W. Hughes, F.G.S., from the Clayscroft Openwork, the largest attaining 

 a length of 29 mm. ; but in no other respect than in size do they differ from the type 

 specimens, which are only about 15 mm. long. These two extremes in length are, 

 however, connected by a chain of intermediate sizes. 



Horizon and Locality. — Ten-foot Ironstone Measures : Clayscroft Openwork, 

 Coseley, near Dudley. 



Rhabdocarpus Renaulti Kidston. 



1890. Rhabdocarpus ovoideus, Renault (non Gopp. and Berger), Flore foss. terr. houil. de Commentry, 

 p. 639, pi. lxxii. fig. 20. 



Description. — Seed oval, about 4 cm. long and 2 cm. broad, contracted at apex 

 into a micropylar beak, and at base into a stalk-like prolongation. Outer surface 

 irregularly striated with numerous fibrous thread - like strands, which are very 

 irregularly distanced from each other and flexuous in their upward course. 



Remarks. — A single specimen of this seed has been found by Mr H. W. Hughes 

 in the South Staffordshire Coal Field, but I possess the same fossil from the Westphalian 

 Series of Yorkshire, which was collected by Mr Hemingway (No. 3289). 



As the name given by Renault to his seed had been previously employed by 

 Goppert and Berger, # and notwithstanding that the Rhabdocarpus ovoideus Gopp. 

 and Berger is now placed in the genus Carpolithes or Cordaicarpus, it is necessary 

 to apply another specific name to Renault's Rhabdocarpus, and I propose to dis- 

 tinguish it as Rhabdocarpus Renaulti. 



Horizon and Locality. — Ten-foot Ironstone Measures : Clayscroft Openwork, 

 Coseley, near Dudley. 



Rhabdocarpus Oliveri Kidston, n. sp. 

 PL XVI. figs. 6, 6a, 7, and 8. 



Description. — Seed radiospermic, ovate acute, 4 cm. long (probably longer when 

 micropyle was perfect) and 2*10 cm. wide. Outer surface with numerous longitudinal 

 striae, at micropylar end gently ribbed and formed of an outer sarcotesta or soft layer, 

 and an inner sclerotesta or stony layer, within which is the nucellus. Pollen chamber 

 large, broad, and contracted into a micropylar tube. 



Remarks. — Five specimens of this seed have been found at Clayscroft Openwork, 

 Coseley, all of which occur in ironstone nodules. Of these, both halves of three of the 

 nodules have been preserved. 



On PI. XVJ. figs. 6 and 7 the two halves of the same specimen are shown natural size. 

 That at fig. 6 shows some indications of the internal organisation of the seed, which is 



* Fruct. et semin., p. 22, pi. i. fig. 17, 1848. 



