70 



LYCOPODIALES 



[CH. 



The surface of this basal region is characterised by numerous 

 circular scars (fig. 134, D; 4 scars enlarged) in the form of 





Fig. 134. Pleuromeia Sternberqi. 



A. Cast of stem in the Breslau Museum {\ nat. size). (A.C.S.) 



B. " Sigillaria oculina " Blanckenhorn. (After Weiss). 



C. D. Leaf-scars and base of stem: a, vascular tissue. (After Solms- 



Laubach.) 



slightly projecting areas with a depression in the centre of 

 each. These are undoubtedly the scars of rootlets, remains of 

 which are occasionally seen radiating through the surrounding 



