18 



Fig. 27. Dacrydium taxoides. 

 Upper figure: pollen grain 

 in lateral, longitudinal view, 

 surface and section. Lower 

 ligure: proximal face, sur- 

 face (left) and optical sec- 

 tion (right; x 1000). Lower 

 left-hand detail-figure: out- 

 line of pollen grain in 1 ateral, 

 transverse view( x 250; outer 

 contour of the corpus inark- 

 ed by the broken line). 

 For explanation of numerals 

 see Fig. 2, p. 7. 



DIOON: 



Fig. 28. Dioon ediile; upper left- 

 hand detail figure: median sagit- 

 tal section; lower left-hand detail- 

 figure: frontal section; upperright- 

 hand detail-figure: transverse sec- 

 tion (all X ioOO); lower right- 

 hand detail-figures: exine strati- 

 fication (X 1000) and LO-pat- 

 terns. 



DISELMA:— 







Fig. 29. Diselma archeri; surface and optical sec- 

 tion (X 1000); exine stratification (x 2000); LO- 



patterns. 



