II. 
HT. 
EN; 
VI. 
. ConpucTING TIssuES 
. STORAGE TISSUES 
PLANT TISSUES 151 
Medullary rays 
Xylem cells (wood parenchyma) 
Trachez (vessels) and tracheids 
Phloem cells (phloem parenchyma) 
Sieve tubes 
Companion cells 
Epidermis (outer cell walls cutinized) 
= (fundamental tissue) 
lees (suberized tissue) 
PROTECTIVE TissuES 
Phloem fibers 
Wood fibers 
MECHANICAL TIssuES se 
Stone cells 
Collenchyma 
Internal glands 
SECRETING TISSUES gana ag aoads ’ 
External glands (glandular hairs) 
ectaries 
Medullary-rays 
Wood parenchyma 
Phloem parenchyma 
Laticiferous tissue 
Primordial meristem 
Dermatogen (protoderm) 
Periblem (ground meristem) 
Plerome (procambium) 
Cork cambium 
Cambium 
Parenchyma 
Reserve parenchyma 
MERISTEMATIC TISSUES } 
