SYRINGA.HTML????????j/g/g Tissue Organization in Lamina

 

Comparison of cross & paradermal sections in Syringa

Paradermal sections are essentially parallel with the epidermis

Two micrographs of lilac (Syringa sp.) are shown here. On the left is a typical view from the perspective of cross (or transverse) sectioning, but turned so that the adaxial surface is to the left. The micrograph shown on the right is a paradermal section that cuts through the different levels of tissue parallel to the lamina surface. Note the difference in appearance of the various tissues as seen from the two perspectives.

1 = upper (adaxial) epidermis; 2 = palisade mesophyll; 3 = minor vein; 4 = spongy mesophyll with intercellular spaces; 5 = base of multicellular trichome; 6 = stomatal complex of the lower (abaxial) epidermis

 
   
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