358 Albany Muamim Rpcords. 



the far closer packing of the vascular protuberances and these last 

 in being squared by horizontal and vertical compression instead 

 of by a diagonally spiral compression. An isolated decorticated 

 specimen like this cannot be of much value, but Feistmantel 

 records a form of Cj/chMigma with vascular scars similarly close- 

 ly packed from the Devonian or Carboniferous beds of Goonoo 

 Goonoo, New South Wales, associated with Lcpidodondron nothimi 

 (australe? )^ . Feistmantel does not give the form a name as he 

 thinks it may i)rove to be the same as C. Jciltorkense, Haughton ; 

 at the same time he compares it with C. ininutuvi, Haughton. 

 The specimen of C. lesUi figured by Seward ^ from Vereeniging 

 teaches us not to pay much attention to the closeness of the pack- 

 ing of the vascular scai'S, but in C. caespitosum we have in addi- 

 tion a different mode of packing which I think is sufficiently 

 marked to be of specific significance. 



Cat. No. 14:2. Witteberg beds ? Cold Bokkeveld, Ceres. 

 Donor : Mr. A. G. Bain. 



DidiimophiiUiDn ( StigDiaria) p.rpansufn, nor. sp. 



PI. VI., Figs. 3, 3a, 3b, 3c. 



This portion of the cast of a broad root appeared at first sight 

 to be an ordinary lepidodendroid stem, but each vascular areole 

 was pierced by two holes ; in some the connection was broken 

 down and on applying a plastic substance to the cast, the impres- 

 sions were the same as those in the areoles of the " knori'ia " layer 

 of CycloHtigma irrcgnlare ; in other vascular protuberances the 

 two rootlets can be distinctly seen. I refer the present specimen 

 to Goeppert's genus DldymophyUurn established for a stigmaroid 

 stem from the lower Carboniferous of Silesia. The form D. reni- 

 foruie, Dawson^, is very close, but this species comes fi-om the 

 Hamilton and Marcellns shales of New York, that is, Middle 

 Devonian. 



The specimen consists of the cast of the decorticated stem 



/ Mem Geol. Siirv., N. S. Wales, IS90, Pal. No. 3, p. 142, PI. II., %. 7. 

 ^Aim. S. A. Mus., Vol. IV., Ft. I , 1903, p. 91, PI. XL, fig. 1. 

 AQ. J. G. S., Vol. XVIIL, 1862, p. 309, PI. XIII, fig. 15. 



