CAKBONIFEEOIIS. 173 



/ Lepidodendron dickotomum. 



Feistmantel (in part), Vers. d. Bohm. Kohlenab. p. 188, pi. xxxii. figs. 1, 



3,5. 

 Eoehl (in part), Foss. Flora d. Steink.-Form. Westph. p. 125, pi. xi. 



fig. 2. 



Remarks. I have examined the specimens named Lepidodendron acerosum 

 in the " Hutton Collection," and find they are the Lepidophloios carinatus, 

 Weiss. To this species is also to be referred Lepidostrobus pinaster, Lindley 

 and Hutton. This type is preserved at Newcastle-on-Tyne, and is merely a 

 small fragment of the bark of Lepidophloios carinatus. The leaf-like pro- 

 longations which are represented as springing from the scales of the supposed 

 cone are not organic structures but cracks in the matrix. The cone-like 

 form of the fossil is also more marked in the drawing than on the original. 

 In the plate the leaf-scales are however drawn in their true position, the 

 articulating surface being directed downwards in Lepidophloios. 



Pinus antkracia, Lindley and Hutton (Fossil Flora, vol. iii. pi. clxiv.), is 

 likewise a fragment of the bark of Lepidophloios. The specimen being badly 

 preserved cannot be definitely referred to any species, but is probably only an 

 older condition of Lepidophloios carinatus, Weiss. 



The example in the Collection from Jarrow shows a cone attached to the 

 stem. 



Horizon. Coal Measures. 



Localities. British. Durham : Jarrow. Stirlingshire : No. 1 Pit, Railway 



Station, Falkirk ? 

 Foreign. Bohemia : Kralup. 



Lepidophloios Scoticus, Kidston, n.s. 

 Lepidophloios laricinus. 



Macfarlane, Trans. Botan. Soc. Edinb. vol. xiv. p. 181, pis. vii. viii. 



(excl. fig. 5a). 

 Halonia. 



Thompson, Trans. Geol. Soc. Edinb. vol. iii. p. 341, pi. (? A), fig. 1. 

 Remarks. This species has been figured and described by Dr. Macfarlane 

 under the name of Lepidophloios laricinus, Sternberg, from which, however, 

 it is essentially distinct. His description is very full, so nothing further need 

 be added here. Reference has already been to made to Dr. Macfarlane's 

 figures in regard to the relationship of Halonia to Lepidophloios (see 

 ante, p. 170). 



Horizon. Calciferous Sandstone Series (Culm.). 



Locality. British. Midlothian : Burdiehouse, near Edinburgh. 



HALONIA, Lindley and Hutton, 1833. 

 Fossil Flora of Great Britain, vol. ii. p. 11. 



Obs. The genus Halonia, as employed here, is synonymous with " fruiting 

 branch of Lepidophloios," and is not regarded as constituting a true group of 

 plants. Halonian branches of Lepidophloios, which cannot be specifically 

 distinguished, are often met with, and for the purpose of noting the occurrence 

 of the genus these specimens must not be passed over. 



The genus Cyclocladia, Goldenberg* (non Lindley and Hutton;, f is also to 

 be referred to Lepidophloios. The original figure given by Golden burg is 

 only a flattened impression of Halonia.]. 



* Flora Sarsep. Foss. heft i. pp. 19, 20, pi. iii. fig. 11. 



f Cyclocladia, Lindley and Hutton (Foss. Flora, vol. ii. pi. cxxx.), is to be referred 

 to Calamitina, Weiss (Steinkohlen-Calamarien, p. 126, Abhand. z. Geol. Specialkarte 

 v. Preussen u. d. Thuringischen Staaten, vol. ii. heft i. 1876). 



J Carruthers, Geol. Mag. vol. x. p. 145, 1873. 



