SPERMATOPHYTA 



341 



Fig. 291. Ovulate strobili of Pinus contorta. A, portion of leafy shoot with young cone 

 and two one-jear-old cones, three-fourths natural size; B, young cone at time of polli- 

 nation, twice natural size. 



Southern Hemisphere. It includes 6 genera and approximately 100 spe- 

 cies. The largest genera are Podocarpus, with 70 species, and Dacrydium, 

 with 20. 



8. Taxaceae. Here belong 4 genera and 14 species, mainly occurring 

 in the Northern Hemisphere. There are only two genera in North Amer- 

 ica, Taxus and Torreya. 



