Palceozoic Fossils. 359 



ill very coai\se redilish (juai-ti^ite, and very little else than the 

 ai'eoles can be seen. There seem to be no specific differences 

 between this South African form and the xlmerican D. reniforniei 

 but as the latter comes from the Middle Devonian it will prevent 

 confusion if a new name is given to the South African stem which 

 comes from beds certainlj- above the middle Devonian. 



Areoles rounded, with double pits, separated from each other 

 by furrows, and arranged in linear series which are ol)lique to the 

 sides of the stem, while the spiral spacing is very steep : the pits 

 lead into small cavities, about 2 mm. long, and turned upwards, 

 representing apparently the cast of the rootlets. Width of areole, 

 1.25 mm. ; distance apart in linear spacing, 3 mm.; whole length 

 of si)ecimen, 6 cm., breadth, 2.9 cm. 



Cat. No. 161. Donor : Mr. Jno. Ward. Locality, Steytler- 

 ville, on the east of the Willowmore Division, from the quartzites 

 (Witteberg beds) of the Groot River Heights. 



Reviewing the above specimens we have found resemblances 

 in the 



Silurian : 



Spirophyton cauda-plicmana^ M 'Coy . 

 Devonian : 



Spirophyton eifelense, Kayser ; *S'. cauda-galli, Vanuxem. 



Archaeopteris hihernica, Haughton; A. ohtusa, Dawson; .4. 

 howitti, M'Coy. 



L('j)lo])hh)rinii rhomhiriiim Dawson ; Lejiidodciidron tiothu/n, 

 Unger, (Carruthers antl Feistmaiitel, not Etheridge nor Kidston.) 



Lopidodeiidrun (/asjjianuiii, Haughton ; G. iiiinutKiii, Haugh- 

 ton ; 0. sp., Feistmantel. 



DidyiiKijihyllain /•eni/onne, Dawson. 

 Lower Carboniferous : 



Le^ddodendron tetrayonuni, Geinitz ; L. australe, M'Coy ; 

 Cyclostigma australe, Feistmantel. 



Didynioj)hyll'Ui)i sjk, Goeppert. 



The two best forms for comparison are Lejj/dodendron alba- 

 nense and Cyclostigma irregulare ; in regard to the first it depends 

 whether we follow Carruthers and Feistmantel or Etheridge and 

 Kidston, whether we make it Devonian or lower Carboniferous ; 



