24 Stopes and Fujii, The nutritive relations of the surrounding tissues etc. 
Fig. 4. General diagram of thick pitted wall between egg cell and jacket cells. 
Pits of Ist degree represent a whole group, or pitted area (cf. fig. 3. g ). 
Within this the wall is irregularly thickened giving pits of 2nd or more 
degrees; this wall may be pierced by plasmodesmen, arrows b (cf. fig. 2. t). 
Arrows a represent plasmodesmen of final pit closing lamella. (cf. fig. 1. I). 
Fig. 5. Zamia floridana. Small portion of egg cell and adjacent endosperm 
cells, shewing pitted wall and distribution of starch and protein granules. 
From microtome series, stained iodine. x 240. 
e egg cell cytoplasm. 
z zone at edge of egg cell where minute starch grains lie very 
thickly. 
t thick pitted wall. 
j jacket cells, empty of starch. 
en endosperm cells, with s starch grains, p protein grains. 
Fig. 6. 'Zamia floridana. Small portion of cytoplasm of egg cell, shewing 
protein and starch grains. From microtome series, stained with iodine. 
X 2200. 
p protein granules of various sizes, sometimes very irregulär in shape. 
s groups of minute starch grains, apparently in plastid. 
ss solitary starch grain in cytoplasm. 
v usual vacuole. 
Fig. 7. Ginkgo biloba. Low power drawing to shew relations of Archegonia 
to stored food in surrounding endosperm. From microtome series, triple 
stained. x 54. 
e egg cell with protein grains (represented by black dots). 
j jacket cells. 
d region of nearly empty cells round egg from which starch and 
protein has been dissolved. 
s storage region of endosperm containing starch (pale rings) and 
protein (black dots). 
Fig. 8. Ginkgo biloba. Small portion from fig. 7. x 240. 
e egg cell, finely granulär with large protein granules p , cytoplasm 
slightly contracted away from jacket cells. 
t thick pitted wall. 
j jacket cells, with large nuclei and many very fine red staining 
granules in dense cytoplasm. 
d endosperm cells empty of all stored food. 
d f endosperm cells with small partly dissolved starch and protein 
grains. 
s storage region with p protein and g starch grains. 
Fig. 9. Pinus Cembra. Small portion of cytoplasm of egg cell, before the 
formation of digestive vacuoles. Shewing usual vacuoles and starch 
grains in cytoplasm. From hand section of fresh material stained iodine. 
x 350. 
s starch grains. v vacuoles. 
Fig. 10. Pinus sylvestris. Small portion of cytoplasm of egg cell shewing 
digestive vacuoles („Hofmeister Körperchen“) with protein and starch 
grains. From hand section of fresh material stained iodme. X 350. 
d digestive vacuole. 
p protein grains. s. starch grains. 
