XLV] 



ULLMAXXIA 



297 



the generic name Ullmannites for wood having the Araucarian type 

 of tracheal pitting which he believes to belong to Ullmannia, but 

 under the former genus are included types of wood that are not 

 generically identical and afford no evidence of connexion with 

 Ullmannia. Ullmannia is essentially a Permian genus especially 

 characteristic of the copper-bearing rocks of Frankenberg in 

 Hessen and Ilmenau in Thuringia ; it is recorded also from France 

 and by Eichwald and Schmalhausen from Russia, the species 



I FIG. 750. 

 U. biar: 



Ullmannia. A C, Ullmannia frumentaria. D, E, U. Bronni. (A, after 

 Geinitz; B, C, after Solms-Laubach ; D, E, after Potonie.) 



U. biarmica Eich. 1 being represented by both sterile and fertile 

 branches. Imperfectly preserved impressions from the Permian 

 of Durham 2 have been referred to Ullmannia but no satisfactory 

 specimens have been discovered in English beds. The fragment 

 figured by Lindley and Hutton 3 as Voltzia Phillipsi may belong to 

 an Ullmannia. 



1 Schmalhausen (87) PL vi. 



2 Murchison and Harkness (64) p. 154; Kirby (64). 



3 Lindley and Hutton (37) A. PL 195. 



