Glossary of Plant Anatomy

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valve [PO:0025228; plant anatomy term ]
A cardinal organ part that is a part of a plant structure that splits apart when the structure dehisces.
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vascular bundle [PO:0005020; plant anatomy term ]
A portion of vascular tissue (PO:0009015) that is a unit strand of the vascular system (PO:0000034) and has as part xylem (PO:0005352) or phloem (PO:0005417).
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vascular cambium [PO:0005598; plant anatomy term ]
A cambium (PO:0005597) that is located between and gives rise to secondary xylem (PO:0005848) and secondary phloem (PO:0005043).
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vascular leaf [PO:0009025; plant anatomy term ]
A leaf (PO:0025034) in a vascular plant.
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vascular leaf abaxial meristem [PO:0025403; plant anatomy term ]
A portion of phyllome abaxial meristem (PO:0025402) tissue that is found on the abaxial side of a developing vascular leaf (PO:0009025).
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vascular leaf adaxial meristem [PO:0025401; plant anatomy term ]
A portion of phyllome adaxial meristem (PO:0025400) tissue that is found on the adaxial side of a developing vascular leaf (PO:0009025).
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vascular leaf anlagen [PO:0025431; plant anatomy term ]
A phyllome anlagen (PO:0025430) that will give rise to a vascular leaf primordium (PO:0000017) and is part of a peripheral zone (PO:0000225) of a shoot apical meristem (PO:0020148).
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vascular leaf founder cell [PO:0025592; plant anatomy term ]
A phyllome founder cell (PO:0025586) that is part of a vascular leaf anlagen (PO:0025431).
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vascular leaf meristematic apical cell [PO:0030012; plant anatomy term ]
A leaf meristematic apical cell that is part of the leaf apex of a vascular leaf.
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vascular leaf primordium [PO:0000017; plant anatomy term ]
A phyllome primordium (PO:0025128) that develops from a vascular leaf anlagen (PO:0025431) and is part of a vegetative shoot apex (PO:0025223) and is committed to the development of a vascular leaf (PO:0009025).
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vascular leaf primordium abaxial side [PO:0004725; plant anatomy term ]
A portion of vascular leaf primordium (PO:0000017) that is distal to the axis of the shoot apical meristem (PO:0020148) and develops into the abaxial side of the leaf lamina (PO:0020039).
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vascular leaf primordium adaxial side [PO:0004726; plant anatomy term ]
A portion of vascular leaf primordium (PO:0000017) that is proximal to the axis of the shoot apical meristem (PO:0020148) and develops into the adaxial side of the leaf lamina (PO:0020039).
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vascular shoot axis meristematic apical cell [PO:0030024; plant anatomy term ]
A shoot axis meristematic apical cell at the tip of a shoot apex in a shoot system that has as part vascular tissue.
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vascular system [PO:0000034; plant anatomy term ]
A maximal portion of vascular tissue (PO:0009015) in a whole plant (PO:0000003), collective plant structure (PO:0025497), multi-tissue plant structure (PO:0025496), or cardinal part of multi-tissue plant structure (PO:0025498).
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vegetative bud [PO:0000058; plant anatomy term ]
A bud (PO:0000055) that develops into a vegetative shoot system (PO:0025607).
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vegetative shoot apex [PO:0025223; plant anatomy term ]
A shoot apex PO:0000037) that has as part a vegetative shoot apical meristem (PO:0008016).
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vegetative shoot apical meristem [PO:0008016; plant anatomy term ]
A shoot apical meristem (PO:0020148) that gives rise to the apical growth of vegetative tissues and organs.
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vegetative shoot system [PO:0025607; plant anatomy term ]
A shoot system (PO:0009006) that has as parts only vegetative tissues and organs.
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velamen [PO:0006042; plant anatomy term ]
A multiseriate epidermis found in aerial roots of some monocots. Most of its cells are dead and store water like a sponge.
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venter [PO:0030038; plant anatomy term ]
A cardinal organ part (PO:0025001) that is the enlarged basal part of an archegonium (PO:0025126) and has an archegonium egg cell (PO:0025122) located in it.
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ventral canal cell [PO:0025524; plant anatomy term ]
A native plant cell (PO:0025606) that develops from the archegonium central cell (PO:0025509), and lies at the base of the archegonium neck (PO:0030039), above the archegonium egg cell (PO:0025122) in the venter (PO:0030038).
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