ORGANIZATION: PLANT TISSUES. 



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713. Descriptive Classification of Tissues. 

 Epidermis. 



Epidermal 

 System 



Fibrovascular 

 System 



Fundamental 

 System 



Simple hairs. 

 Many-celled hairs. 

 Branched hairs, often stellate^, 

 Trichomes. -1 Clustered, tufted hairs. 

 Glandular hairs. 

 Root hairs. 

 Prickles. 



Guard-cells of stomates. 



Spiral vessels. 



Pitted vessels 



Scalariform vessels. 

 Xylem (wood). Annular vessels. 



Tracheides. 



Wood fibers. 



Wood parenchyma. 

 Cambium (fascicular). 



Phloem (bast). 



Stem and root. 



Sieve-tubes. 

 Bast fibers. 

 Companion cells. 

 Bast parenchyma. 



Cork. 



Collenchyma. 

 Cortex. . . \ Parenchyma. 



Fibers. 



Milk tissue. 



Pith-ray.. 



Parenchyma. 

 Intrafascicular cambium. 



Leaves 



. ( Parenchyma, 



ith 1 Sclerenchymai 



Bundle-sheath. 

 Endodermis. 

 Palisade tissue. 



Spongy parenchyma. 

 Reproductive Organs (mainly fundamental). 



