1910] SMITH—ERIOCAULON 289 
Fic. 2 3.—Endosperm before tissue formation. X 730. 
Fic. 24.—Tissue formation in endosperm. 490. 
Fic. 25.—Division of parietal layer of endosperm. 730. 
Fic. 26.—One-celled embryo. 730. 
Fic. 27.—Two-celled embryo. 730. 
Fic. 28.—Second division of embryo. X 730. 
Fic. 29.—Quadrant stage of embryo. X 730. 
Fic. 31.—Transverse section of inner half of embryo, showing origin of 
ahavecs, X 730. 
Fic. 32.—Transverse section of micropylar half of same embryo. 730. 
Fic. 33.—Transverse section of an older embryo. X 730. 
Fic. 34. —Polyembryony. 
Fic. 35.—Micropylar end of embryo sac, showing embryo and endosperm. 
X 240. 
Fic. 36. Lames section of embryo of mature seed. 730. 
