VARIOUS FOOD-PLANTS 97 
Fame Gy i 
Fic. 106.—Orange (Citrus Aurantium) and Lemon (C. medica, var. Limonum, 
Rue Family, Rutacer). A-F, Orange. A, flowering branch. 8B, 
flower, central part, cut vertically and enlarged. C, pollen grains, 
much magnified. D, ovary, cut across. E, seed, cut vertically. F, 
seed, cut across. G-L, Lemon. G, flowering branch. H, flower, with 
petals removed, enlarged. J, anther, front view. K, same, back view. 
L. ovary, cut vertically, enlarged. (Berg and Schmidt.)—Both plants 
are small trees or shrubs with evergreen aromatic leaves and smooth 
stems; flowers white in the orange, and tinged with pink in the lemon; 
fruit with thick aromatic rind, and seeds imbedded in a pulp consisting 
of internal hairs swollen with a more or less acid juice. 
