ORGANIZATION: PLANT TISSUES. 



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713. Descriptive Classification of Tissues. 

 Epidermis. 



Epidermal 

 System. . 



Fibrovascular 

 System. .... 



Simple hairs. 

 Many-celled hairs. 

 Branched hairs, often stellate 

 Trichomes. 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). 



Fundamental 

 System 



Stem and root. 



Sieve-tubes. 

 Bast fibers. 

 Companion cells. 

 Bast parenchyma. 



Cork. 



Collenchyma 

 Cortex. . . \ Parenchyma. 



Fibers. 



Milk tissue. 



Pith-ray.. 



Parenchyma. 

 Intrafascicular cambiun 



( Parenchyma, 

 'ith -j scferenehyma. 



Bundle-sheath. 

 Endodermis. 



Palisade tissue. 

 Spongy parenchyma. 



Leaves 



Reproductive Organs (mainly fundamental). 



