CARBONIFEROUS. 221 



The curious fossils known as Sternbergia or Artisia, which occur throughout 

 the whole of the carboniferous formation, have by some authors been referred 

 to Coniferse as the casts of their pith cavity. Similar Sternbergia pith casts 

 have been described as occurring in stems of Cordaites by Grand 'Eury,* 

 Eenault, and Schenk, and finally Goldenberg has referred Sternbergia to 

 Lepidophloios as the cast of its pith cavity. f 



The microscopical sections in the Collection are from the following 

 localities : 



Horizon. Calciferous Sandstone Series. 



Localities. British. Berwickshire : Lennel Braes, Midlothian : Craig- 

 leith Quarry and Granton Quarry, near.Edinburgh. 



In addition to these are some blocks of fossil wood which are probably 

 referable to this class. 



Horizon. Coal Measures. 



Localities. British. Warwickshire : Stanley, near Arley. Worcestershire : 

 Bowles Brook, near Bewdley. 



STERNBERGIA, Artis, 1825. 

 Antediluvian Phytology, p. 8. 



Sternbergia approximata. 



Brongniart, Prodrome, p. 137. 



Bawson, Acadian Geol. 2nd ed. p. 491, 1868. 



Lindley and Hutton, Foss. Flora, vol. iii. pis. ccxxiv., ccxxv. 

 Artisia approximata. 



Grand 'Eury, Flore Carbon, du Bep. de la Loire, p. 247. 



Unger, Synop. Plant. Foss. p. 171. 



Sternbergia angulosa. 



Brongniart, Prodrome, p. 137. 

 Sternbergia transversa. 



Artis, Anted. Phytol. pi. viii. 



Artisia transversa. 



Eoehl, Foss. Flora d. Steink. Form. Westph. p. 148, pi. iv. fig. 8. 



Sternberg, Vers. ii. p. 192, pi. liii. figs. 7-9. 

 Dictyodendron Patricii. 



Landsborough in Patrick, Annals and Mag. Nat. Hist. 1st ser. vol xiii 

 p. 287, pi. v. fig. 1. 



Sternbergia. 



Williamson, Monthly Micros. Journ. vol. ii. p. 72, 1869. 

 Remarks. The nature of the genus Sternbergia, Artis (Artesia Sternberg) 

 has been mentioned in the remarks appended to Araucarioxylon.\ Specific 

 names have been applied to the various forms assumed by these fossils, which 

 are only the casts of the pith cavity of plants which perhaps belong to 

 distinct genera. A considerable number of specimens are in the Collection, 

 but I have merely placed them under " Sternbergia" as the application of 

 specific names to them does not seem to serve any practical purpose. 

 Some of the Sternbergia are shown to be enclosed within a stem. 

 Horizon. Coal Measures. 



Localities. British. Ayrshire : Stevenston. Lanarkshire : Carluke. 

 Burham : Gateshead. Shropshire : Oldbury! 

 Worcestershire : Bewdley. 



* Grand 'Eury, Flore Carbon, du D(ip. de la Loire, p. 249, 1877. 

 f Goldenberg, Flora Sarsep. Foss. heft 3, p. 27, 1862. 



1 See also Dawson, Acad. Geo. 2nd ed. p. 535, fig. 185, 1868, and Foss. Plants 

 Dev. and Up. Sil. Formations, Canada p. 12, pi. i. figs. 1-4 and fig. 15, 1871. 



