CONIFERALES (TAXACEAE) 



337 



Fig. 386. — Torreya taxifolia: median longitudinal section of female gametophyte, 

 showing egg with large nucleus (0), the remains of a neck cell {nc), and antipodal 

 haustorial cells (Jir) ; also the tip of a pollen tube in contact with the egg, showing stalk 

 nucleus (ite), tube nucleus {tn), and the two unequal male cells (m' and m^); the 

 upward growth of the endosperm cells forms a sheath around the pollen tube; August 

 12, 1904; X460. — After Coulter and Land (ioi). 



