CLASSIFICATION OF FRUITS 



193 



Simple Fruits are formed from a single pistil. The simple 

 fruits are divided into dry and fleshy fruits. 



A drv fruit is one that becomes free of moisture at maturity. 



** 6 ft 



" 



1*1 



FIG. 122. Achenes. 1, Beggar ticks (Bidens frondosd) ; 2, anemone 

 (Anemone sp.) ; 3, buttercup (Ranunculus acris) ; 4, sunflower seed (Helian- 

 thus annuus) ; 5, hempseed (Cannabis saliva) . Grains, 6, corn (Zea mays) ; 

 7, barley (Hordeum salivum); 8, rye (Secale cereale); 9, wheat (Triticum 

 salivum var. vulgare) ; 10, stalk of wheat. Samaras, 11, ailanthus (Ailanlhus 

 glandulosa) ; 12, w.hite ash (Fraxinus americand) ; 13, ironwood (Ostrya 

 virginiana) ; 14, false ironwood (Carpinus caroliniand) ; 15, pie rhubarb 

 (Rheum rhaponticum) ; 16, elm (Ulmus americand). 



Indehiscent Simple Dry Fruits. Indehiscent simple dry 

 fruits include achenes, utricles, grains, samaras, nuts and 

 nutlets. 

 13 



