CLASSIFICATION OF FRUITS 



195 



A samara is a one-celled, one-seeded, indehiscent fruit 

 with a membranous expansion or wing, as in gray birch, 

 rhubarb, elm, ailanthus, ironwood, false ironwood and ash. 



FIG. 124. Baccate fruits. 1, Berry of tomato (Lycopersicon lycopersi- 

 cum) ; 2, Hesperi&um of grape fruit (Citrus sp.) ; 3, Pepo of squash (Cucurbita 

 maxima) . 



A nut is a one-celled, one-seeded, indehiscent fruit as in 

 acorn, hazelnut, hickory nut, chestnut, butternut. 

 A nutlet is a small nut, as in mint. 



