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=Background= See [[Wood_anatomy_ontology_meeting,_2012_at_NYBG,_agenda]] and [[Goal_1._Anatomical_Entities]]. Also, may have a few more terms from [[Goal_2._Plant_Structure_Development_Stages]]. =Anatomy and morphology terms from PO= Do we need only wood-related terms, or other terms for woody plants? ''Will also need terms for some structures found in gymnosperms, such as reproductive structures.'' ==Terms already in PO that need work== ''Under construction'' ===[https://sourceforge.net/tracker/index.php?func=detail&aid=3314764&group_id=76834&atid=835555 fascicular and interfascicular cambium]=== Part of the cambium develops from the procambium, but part of it develops from parenchyma cells in the interfascicular region. Already have separate terms for fascicular and interfascicular cambium. May need to add a term that combines the two of them for wood. Only in shoot axes? '''fascicular cambium (PO:0006200):''' Vascular cambium originating from procambium within vascular bundles or fascicles. [source: ISBN:047124529] '''proposed def., interfascicular cambium:''' A portion of ''shoot axis'' vascular cambium that develops from a procambium in a vascular bundle. comment: Portions of fascicular cambium may merge with the fascicular cambium from adjacent vascular bundles or the interfascular fascicular cambium to form a cylinder of cambium, or they may remain isolated. '''interfascicular cambium (PO:0006201):''' Vascular cambium arising between vascular bundles or fascicles, in the interfascicular parenchyma or pith. [source: ISBN:047124529] Should refer to the interfascicular region (PO:0006202). '''proposed def., interfascicular cambium:''' A portion of ''shoot axis'' vascular cambium that develops ''from a parenchyma cell or meristematic cell'' in an interfascicular region (PO:0006202). comment: Portions of interfascicular cambium may merge with the fascicular cambium to form a cylinder of cambium or they may remain isolated. '''other cambium terms:''' '''included vascular cambium (PO:0004523):''' Cambium occurring within xylem. '''proposed def., included vascular cambium:''' A portion of cambium tissue that is located in a portion of ''secondary'' xylem. comment: '''outer vascular cambium (PO:0004522):''' Cambium at the outer margin of the xylem cylinder. See below for new term for '''storied cambium'''. ===xylem and phloem mother cells=== '''phloem mother cell (PO:0000400), current def.:''' A cambial initial cell which is destined to differentiate into secondary phloem. Comment: Phloem islands can be formed in the middle of the xylem. currently is_a cambial initial cell, part_of secondary phloem. Should be develops_from cambial initial. From IAWA glossary: phloem mother cell: Cells that are cut off on the inner side by the fusform cabial initials, but which undergo further periclinal divisions before differentiating into phloem cells. xylem mother cells: A cell that is cut off on the outer side by a fusform cabial initial, but which undergoes further periclinal division before differentiating into a xylem cell. Sometimes the term phloem initial is used (e.g., Esau) synonymously with phloem mother cell, but she does distinguish them in her glossary. '''proposed def., phloem mother cell: A plant cell that develop from an externa division of a cambial initial cell (PO:0000295) and undergoes further divisions to form sieve elements (PO:0025406) or phloem parenchyma cells (ID) of a portion of secondary phloem (PO:0005043). Can cells of secondary phloem develop directly from VC without further division? We need a term for phloem parenchyma cell, parent to companion cell and albuminous cell. Should we add relations for companion cell and sieve element develop from phloem mother cell? '''proposed def., xylem mother cell: A plant cell that develops from an internal division of a cambial initial cell (PO:0000295) and undergoes further divisions to form tracheary elements (PO:0000290), secondary xylem parenchyma cells (PO:0004525), or xylem fiber cells (PO:0000274) of a portion of secondary phloem (PO:0005043). (''Add POid for xylem mother cell to definition of cell division stage of secondary xylem (PO:0025463) once we add it.'') ===types of upright ray secondary xylem parenchyma cell=== '''sheath cell (PO:0004531), current def.:''' Cell on the margin of, and tending to form a sheath around, the procumbent cells of a multi-seriate ray as seen in tangential section. from IAWA: One of a series of upright cells (>Ray cell, upright) on the margins of, and tending to form a sheath around, the procumbent cells of a multi-seriate ray as seen in tangential section. '''tile cell (PO:0004530), current def.:''' Empty upright ray cell of approximately the same height as the procumbent ray cell and occurring in indeterminate horizontal series usually interspersed among the from IAWA: A special type of apparently empty upright ray cell of approximately the same height as the procumbent ray cells and occurring in indeterminate horizontal series usually interspersed among the procumbent cells. Note: Common in certain of the Tiliales and Malvales. ==New terms to request in PO== aggregate ray (also maybe homogenous, heterogenous, uniseriate, multiseriate, fusiform rays) storied cambium and ray '''storied:''' A term applied to the axial cells and rays in wood when these are arranged in horizontal series on tangential survaces. Note: the term is applied to particular tissues, e.g., "storied parenchyma" or used in a general sense, as in "wood with storied structure". The presence of storied structure is the cause of the ripple marks visible with the unaided eye. non-storied cambium and ray aggregate ray, homogenous or heterogeneous, uniseriate, multiseriate oil cell ray tracheid traumatic resin (apotracheal, paratracheal, marginal, aliform, confluent) axial parenchyma read review of laticifer cells by Pickering knot loose and tight vascular bundle types - amphicentric, vasicentric, medulary inter- and intra-xylary phloem successive cambium epithelium cell ray tracheid and subtypes cambial zone square cell axial parenchyma strands resin canal pith flecks (maybe) breakdown ray area inner and outer bark terms for how vessels and parenchyma are arranged in wood (e.g., vascicentric) =Anatomy terms from GO= ==Terms already in GO that need work== ==New terms to request in GO== pit, pit types, torus, margo, simple, membrane types, tyloses etc., casparian strip mineral inclusions: calcium oxalate, silica, druses See good description in Eames, also see Esau. plant secondary cell wall pit: A cavity in a plant secondary cell wall with an pit membrane, open internally to the lumen. primary cell wall pit: An area of a primary plant cell wall is thin. The primary wall of the adjacent cell is also thin in the same place. Except blind pit, which is only on one side. pit membrane simple pit bordered pit primary pit field perforation: the opening between two vessel elements intrusive growth cambial dormancy (or just add stage) ==other suggestions== Add term '''xylem cell''' and '''phloem cell''' -- XP of cell and part_of xylem of phloem. Can't create terms for secondary xylem or secondary phloem cells, because most of the cell types can appear in both primary and secondary vascular tissue. Xylem cell should be linked to the definition of pulp and paper (useful for TO) Terms for gum/latex/resin? Too broadly defined. Could look up specific definitions in ethnobotanical literature, but people may not use them consistently.

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