Fig. 326. — Torreya taxifolla: pollen tube in contact with the egg: w' and w' the two 

 unequal sperms; sin, stalk, nucleus; tn, tube nucleus; nc, neck cell; 0, egg nucleus; hr 

 haustorial cells. Cells at the top of the female gametophyte are growing up around the 

 tube; August 12, 1904; X460. — After Coulter and Land.'s^ 



