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ray system
Term Information
Accession
PO:0025411
Name
ray system
Ontology
plant_anatomy
Synonyms
horizontal system (exact), radial system (exact), 放射状組織 (Japanese, exact), ray (broad)
Alternate IDs
None
Definition
A portion of secondary vascular tissue (PO:0025409) that has as part ray wood parenchyma (PO:0004534) and extends radially in the secondary xylem (PO:0005848) and secondary phloem (PO:0005848) of a plant axis (PO:0025004).
Source:ISBN:0471245208
Comment
May include ray tracheids, as in Pinaceae and some Cupressaceae.
Subset
None
Related
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