_~ 
136 BOTANICAL GAZETTE [AvcUST 
Fic. 56.—Fertilization: male nucleus and egg nucleus are in contact at 
of egg, surrounded by cytoplasmic sheath; smaller male cell nucleus and 
tube and stalk cell nuclei can be seen in upper portion of egg cytoplasm; 
ellipsoid dark bodies are food particles, while irregular dark mass seen in upper 
portion of egg is an accumulated mass of cytoplasm from pollen tube. 
Fic. 57.—T'wo female gametophytes lying side by side, with innermost 
portions of 2 pollen tubes beside them 
Fic. 58 -—Two gametophytes in ‘cial row, both having deuclaed good 
archegonia; tube has spread out over micropylar end of outer game- 
tophyte. 
Fic. 59.—Three female gametophytes in axial row,.with pollen tube 
between first and second; second contains a proembryo, while inner one also 
contains a good archegonium. 
e containing 4 female ghinetanhvies: 2 of which are in free 
1G. 60.—Ovul 
nuclear condition; lower one contains a proembryo; pollen tube has crowded 
ween the 4 gametophytes. 
Fic. 61.—Another ovule with 4 Soule gametophytes, 3 of which contain 
archegonia; one of gametophytes consists of only a few free nuclei, but has 
Trotngie! ieee ges Custer dani canis hicea’ phanctare pans 
gametophyte. 
Fic. 62.—Portion of ovule with 5 female gametophytes, 3 of which are in 
_ free nuclear condition, and an archegonium appearing only in lower of two 
with tissue; ois we ates irae det are es at arena 
