Fig. 47. Podocarpiis totana 



Longitudinal section of ovule, showing developing embryo with suspensor pene- 

 trating the prothallus ("endosperm") ( x 22, after Buchholz). 



Fig. 48. Embryos of Podocarpaceae 



A, B, Podocarpiis urbcmii. A, Two embryo systems with prosuspensors {ps) bearing 

 two and three binuclcale cells. B, Three embryo systems, the longest with three 

 embryos developing massive secondary suspensors from embryonal tubes {et)\ 

 many small embryos are present at the ends of prosuspensor cells (x 45). C, 

 P. totana. A later stage in the embryogeny, characterised by the formation of a 

 massive distal region and secondary suspensor ( \ 80). D, H. P. hallii. Later stages 

 in the organisation of the embryo proper (after Buchholz). F, G, Phyllocladiis 

 alpiiuis. Four- and eight-nucleate proembryos (x 925; from Johansen, redrawn 



from Kildahl). 



