132 MEDULLOSEAB [CH. 



DOLEROPHYLLUM. Saporta. 



This name was proposed^ primarily for a large ovoid petrified 

 bud composed of rolled Cyclopteroid leaves from Perinian rocks 

 in the Ural Mountains, which had been previously described by 

 more than one writer under different names and regarded as a 

 young shoot of a Palm or other Monocotyledon. Bichwald^, 

 who published good drawings, called the fossil Noeggerathia 

 Goepperti. Saporta connected with this species some leaf-impres- 

 sions from the Permian of Bohemia described by Goeppert' as 

 Noeggerathia cyclopteroides : in his family Dolerophylleae* the 

 French author included other leaves which are probably not 

 closely related to the type-species, Dolerophyllum Goepperti. 

 The Dolerophylleae are spoken of by Saporta and Marion^ as 

 Progymnosperms. Before the publication of Saporta's note 

 Grand'Eury had instituted the genus Doleropteris^ and the family 

 Doleropteroideae ; in the former he included several forms of 

 leaves agreeing generally with Goeppert's Noeggerathia cyclo- 

 pteroides. Zeiller' adopts Grand'Eury's designation for the 

 Russian fossil in preference to Dolerophyllum, a choice justified 

 by considerations of priority; but the latter name is retained 

 in this account as it was assigned by Saporta to the specimen of 

 greatest botanical interest, namely Dolerophyllum Goepperti, and 

 because it does not suggest affinity to Ferns. 



Dolerophyllum Goepperti (Eichwald). 



The type-species is from the Zechstein of Orenburg in the 

 Urals and no specimens having precisely the same structure have 

 been found elsewhere. Eichwald assigned it, with leaf-impressions 

 of various kinds, to the Noeggerathieae and named it Noeggerathia 

 Goepperti: it had previously been described by Kutorga^ as 

 Aroides crassispatha and Unger^ included it among the Palms as 

 Palaeospathe aroidea. The species has been described also by 

 Saporta and Marion and by Renault i". The following account is 



» Saporta (78). = Eichwald (35) PI. xviii. fig. 18; (60) p. 252. 



3 Goeppert (65) p. 157, ^1. xxi. fig. 4. 4 Saporta (78^). 



* Saporta and Marion (85) pp. 16, 68. 



" Grand'Eury (77) A. p. 192. ' Zeiller (00^) B. p. 217. 



8 Kutorga (42). s Unger (50) A. p. 334. 



" Renault (96) A. p. 262. 



