12 YORKSHIRE NATURALISTS UNION. 



Lychnophorites siiperbus Artis. PI. xix. 



Probably a badly preserved specimen of Lepidodendron 

 acideatiim. The enlargements A and B must not be relied 

 on as they are evidently erroneous. 

 Svvinton Common, near Rotherham. 

 Megaphyton frondosum Artis. PI. xx. 

 Quarry near Rawmarsh. 



Filicites decurrens Artis. PI. xxi. 



Now Alethopferis decurrens Artis sp. 

 Alverthorpe, near Wakefield, and near Leeds. 



Carpolithiis marginatus Artis. PI. xxii. 



Now Cardiocarpiis marginatus Artis sp. 



Leabrook Quarry. 

 Aphyllum asperum Artis. PI. xxiii. 



Most probably Lepidodendron aculeatiini Sternb. 



'In a continuation of the Elsecar nine feet coal [= 

 Barnsley Thick Coal] situated near Hoy land.' 



Calamites decoratus Artis. PI. xxiv. 



The lower portion of the stem of Calamites suckowii Bgt. 

 Artis gives as a reference to his figure the plant figured by 

 Steinhauer,t pi. v, fig. i. Steinhauer's figure was subse- 

 quently named Cal. steinhaueri by Brongniart. I believe, 

 however, that Artis is correct in uniting the plants. 



III. Histoire des Vegetaux Fossiles.— Vol. i, 1832 



— 37. Vol. 2 (incomplete), 1837 — 38. By A. Brongniart, Paris. 



Several Yorkshire species are mentioned by Brongniart, 



most of them, however, on the authority of Artis. The 



species mentioned are : — 



Calamites decoratus. Low Moor and Leabrook (Gallois and 



Artis). 

 Calamites ramosus. Low Moor and Leabrook (Artis). 

 Calamites dubius. Leabrook (Artis). 



t Trans. Amer. Phil. Soc, iSiS. Vol. i. 



Geol. Trans. Y.N.U., iS88 (pub. 1890). 



