354 Albany Museum Recnrch 



fication of Cari-iithei-s and Feistmantel of />. /?o///jf//?, from Australia 

 is thought by many palaeobotanists to bo erroneous,^ and the 

 present view held in Australia is that the form is in reality 

 L. aiisti'dle, M'Coy^ from the lower Carboniferous. The un- 

 satifactor.y material we have to deal witli in the South African 

 paleozoic plants renders it iinp()ssil)le to do more than point out 

 the general resembhxnces to species from other parts of the world. 

 It is only when reviewing the resemblances of all the forms 

 fouiul in the locks that we can see our way to coi-relate distant 

 strata with some degree of probalnlity. In the particular case of 

 L. albatirjise, the controversy that has taken place over the sup- 

 posed Australian species L. aothuni Unger, and L. australe, 

 M'Coy, renders it doubtful whether we should class the South 

 African species as Upper Devonian or Lower Carboniferous, It is 

 certainly not an Upper Carboniferous form. The more pronounced 

 leaf-scars on the edge of the larger specimen, by their arched 

 upper margin, suggest that the Grahamstown specimen is perhaps 

 a Bergeria form of the widely distributed Culm fossil 

 L. oeltheimianum, Sternb. ; I have compared a specimen of this 

 last species in the Rhodes University College collection, which 

 comes from Niederburbach, Alsace, and is preserved in quartzite 

 like the Witteberg specimens, and the resemblance is very strong 

 The leaf impressions in the bark of Lcpidoch'ndron oculus felis, 

 Abbado, are also rhoml)ic, but the plan on which they are arranged 

 is quite different ; the species comes from the top-most beds of 

 the Carboniferous in China (Chepoutse and Houyukoo)''. In this 

 form the lateral points of the rhombs overlap, so that when they 

 are pulU'd lengthwise by the growth of the tree they do not 

 become in outline elongate rhombs but hexagons. The same 

 apjflies to the Saharan form L. Ijicopodioidrs, Sternb,' 



'Kidston, Cat Pal. Plant., Brit, Museum, KSS6, p. 231, also Etheridge, 

 Records Geol Surv. N. S. Wales, Vol. II., Pt. Ill,, 1891, p. 119. 



Chapman, Proc. Eoy. Soc, Victoria, XVI., New Ser., Pt. II., 1904, 

 p. ;J09. 



^Zeiller, M.R. Note sur la Flove houilliere de Chansi. Ann. d. Mines, 

 1901, p. 434, Pt. VII., figs 1—6. 



^E. Haug, inF. Foureau, Mission Saharienne, Paris, 1905, Vol II., 

 p. 7S9, PI XII., fig. 6, 



