Plant Anatomy An Applied Approach (Lecture ppt) Ch04_Arrangement_OfVascularBundle-add

Plant Anatomy An Applied Approach (Lecture ppt) Ch04_Arrangement_OfVascularBundle-add

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Arrangement of Vascular Bundle
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phloem + xylem pith ? procambium Stele
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C: cortex P: phloem X: xylem Pi: pith Protostele Siphonostele
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: Protostele: Haplostele the simplest protostele this consists of a solid core of xylem surrounded by a layer of phloem an endodermis surrounds the stele ex. Psilotum rhizome http://www.botany.hawaii.edu/faculty/webb/ bot201/RootStemStele/HaploStele.jpg
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: Protostele: Actinostele http://www.botany.hawaii.edu/faculty/webb/bot201/Ro otStemStele/ClintoniaRootX-SSteleLab.jpg Xylem occupies the center but the phloem occupies indentations in the xylem. This makes the xylem
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Plant Anatomy An Applied Approach (Lecture ppt) Ch04_Arrangement_OfVascularBundle-add

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