PAST HISTORIES OF PLANT FAMILIES 



8i 



Fig- 59.— Dicotyledonous Leaf Impression from Tertiary Rocks 



couple of such seeds, which show 

 but also the small antennae - like 

 stigmas. Specimens so perfectly 

 preserved are practically as good 

 as herbarium material of recent 

 plants, and in this way the ex- 

 ternals of the Tertiary plants are 

 pretty well known to us. 



A problem which has long been 

 discussed, and which has aroused 

 much interest, is the relative an- 

 tiquity of the Monocotyledonous 

 and the Dicotyledonous branches 

 of the flowering plants. A peculiar 

 fascination seems to hang over this 

 and a battle of flowers may be said 



not only their wings 



Fig. 60. — Seeds from Japanese 



Tertiary Rocks; at a are seen 



' the two stigmas still preserved 



Still unsolved riddle, 

 to rage between the 



(C122) 



