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EXPLANATION OF PLATES XITI-XV. 
(Fics. 1-9 are text cuts.) 
Fic. ro. Longitudinal section of ovule: a, abscission layer; ¢, rea 
i, inner fleshy layer of integument; ib, bundle of inner vascular m;, ™, 
micropyle; #, free portion of nucellus; 0, outer fleshy layer of sation ? 
bundle of outer fleshy layer; , basal papilla; s, stony layer of integument. x2. 
