Mr. R. Kidston on British Carboniferous Lycopods. Gl 



examining this fossil, which is contained in the collection of 

 the Geological Survey of England. 



I was previously of opinion that Lepidodendron Veltheimi- 

 anum, in addition to bearing lateral cones which produced the 

 large Uiodendroid scars, might also have produced terminal 

 cones. Continued investigations have, however, led me to 

 relinquish this view, as the cones whicli I formerly believed to 

 be the terminal cones of Lepid. Veltheimianum I have now seen 

 attached to their parent branches, which show that they 

 belong to an altogether distinct and, I believe, an undescribed 

 species. 



Note. — I wish to correct an error in the description of the 

 leaf-scar of Lepidodendron which 1 made in the paper already 

 referred to. In my previous communication it was stated on 

 p. 173, '' Leaf -base attached to the whole area of the leaf- 

 scar (including the ' field ')." That portion of the leaf-soar 

 which is known as the " field " really belongs to the cortical 

 system, of which it is in fact a cushion-like elevation. The 

 true leaf-scar is only the small shield-like disk which bears 

 the vascular and the two lateral cicatricules. These two 

 " lateral cicatricules " have no connexion with the vascular 

 system and are probably glandular. 



II. SiGILLARIA. 



In my previous memoir I placed in Sigillaria^ under the 

 name of Higillaria discophora^ Konig, sp., the plant originally 

 figured by Konig as Lepidodendron discojyhorum *. This is 

 identical with Lindley and Hutton's Ulodendroyi mi7ius'\. 

 My reason for placing this plant in 8igillaria was the struc- 

 ture of the leaf-scar, which I stated on p. 178 (/. c.) possessed, 

 as had been figured by Sir William Dawson, a central and 

 two lateral cicatricules J ; and thougli I had not observed 

 them personally I had no reason to doubt the accuracy of this 

 writer's observation. In reviewing my paper Mons. Zeiller§ 

 gives his reasons for doubting the accuracy of the figure 

 given by Dawson, in which the three cicatricules were shown, 



* Konig, Icones fossilium sectiles, pi. xvi. fig. 194. 



t I should say liere thnt although this latter uame is the older one, it 

 has heen so much confused by authors, expediency almost demands that 

 it be subordinated to the name given by Konig, from the use of which no 

 confusion or misunderstanding can arise. 



X ' Acadian Geology/ 2nd ed. 1868, p. 45o, fig. clxx. g^. 



§ " Presentation d'une brochure de M. Kidston sur les TJlodendrun et 

 observations sur les Genres Ulodendron et Bothrodendron^^ Bull, de la 

 Soc. Geol. de P'rance, 3* ser. vol. xiv. p. 1G8 (1885). 



