{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.diospyros-tessellaria","code":"thing-q15346008","url":"https://ver.cy/models/thing/q15346008/","name":"Diospyros tessellaria","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.LIV"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Diospyros tessellaria is an evergreen tree species in the family Ebenaceae, endemic to Mauritius and known as a source of ebony timber.","purpose":"Enable an agent to recognise Diospyros tessellaria, assess the condition and regeneration of its trees and populations, and select evidence-supported conservation or cultivation actions.","scope":{"in":["Taxonomic identity and evidence distinguishing this species from other Mauritian Diospyros.","Leaf, bark, flower and fruit observations linked to identified trees.","Wild, planted and nursery provenance, including source populations.","Tree condition, reproductive activity and establishment of new individuals.","Species-specific evidence supporting propagation, restoration and monitoring."],"out":["The complete taxonomy and biology of the genus Diospyros.","Other Mauritian ebony species as independent taxa.","Processed ebony timber identification, grading and commercial products.","Whole-forest ecosystem management beyond relationships affecting this species.","Land ownership, protected-area administration and conservation legislation as independent models."],"boundaries":[]},"distinguishingFeatures":["Resolve the scientific name to Diospyros tessellaria Poir.; a label saying only ebony or black ebony is insufficient to establish species identity. [Plants of the World Online](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:323092-1)","Backlight mature leaves and document the reported mildly translucent margins and veins; treat this as a provisional field character pending confirmation with a botanical key. [Species description](https://en.wikipedia.org/wiki/Diospyros_tessellaria)","Compare against Diospyros egrettarum when white bark and rectangular dark leaves dominate the identification; those reported characters warrant checking that alternative. [Related species comparison](https://en.wikipedia.org/wiki/Diospyros_tessellaria)","Check leaf attachment and spacing against Diospyros revaughanii when leaves are densely packed and apparently stalkless; do not identify a juvenile tree from size alone. [Related species comparison](https://en.wikipedia.org/wiki/Diospyros_tessellaria)","Use Mauritius provenance as supporting evidence, not a diagnostic character: several ebony species occur there, and cultivated individuals can occur outside their native range. [Plants of the World Online](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:323092-1)"],"structure":{"bundles":[{"id":"ebony-identity","name":"Ebony identity","description":"Establish whether an observation belongs to Diospyros tessellaria rather than another ebony.","layers":[{"id":"taxonomic-anchor","name":"Taxonomic anchor","description":"Connect the registry concept to a documented botanical determination.","findings":[{"id":"accepted-name-and-determination","name":"Accepted name and determination","description":"Kew accepts Diospyros tessellaria Poir.; retain the original specimen label alongside the accepted determination. [Plants of the World Online](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:323092-1)","questions":[{"text":"Which taxonomic reference and version establish the accepted species concept?","id":"accepted-name-and-determination-q01","kind":"definition"},{"text":"Who determined this tree or accession, and which voucher or photographs support that determination?","id":"accepted-name-and-determination-q02","kind":"provenance"}]}]},{"id":"congener-separation","name":"Congener separation","description":"Evaluate leaf and reproductive evidence against alternative Mauritian Diospyros identifications.","findings":[{"id":"diagnostic-character-set","name":"Diagnostic character set","description":"Record backlit leaves, petioles, bark and available reproductive structures together; the reported leaf-translucency clue requires confirmation against an authoritative key. [Species description](https://en.wikipedia.org/wiki/Diospyros_tessellaria)","questions":[{"text":"What do measured leaves and backlit photographs show about margins, venation and petiole length?","id":"diagnostic-character-set-q01","kind":"measurement"},{"text":"Which keyed characters exclude D. egrettarum, D. revaughanii and other plausible local congeners?","id":"diagnostic-character-set-q02","kind":"boundary"}]}]}]},{"id":"mauritius-occurrence-and-provenance","name":"Mauritius occurrence and provenance","description":"Locate verified trees and distinguish natural occurrence from human establishment.","layers":[{"id":"wild-occurrence","name":"Wild occurrence","description":"Relate observations to native-range evidence and local habitat.","findings":[{"id":"range-and-site-evidence","name":"Range and site evidence","description":"Kew records Mauritius as the native range and wet tropical conditions as the primary biome; these broad descriptors do not establish site-level tolerances. [Plants of the World Online](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:323092-1)","questions":[{"text":"What coordinates, elevation, habitat observations and identification evidence establish this occurrence?","id":"range-and-site-evidence-q01","kind":"provenance"},{"text":"Is this tree naturally established, planted or of uncertain origin?","id":"range-and-site-evidence-q02","kind":"boundary"}]}]},{"id":"restoration-stock-provenance","name":"Restoration stock provenance","description":"Connect planted individuals and nursery material to source trees and collection events.","findings":[{"id":"source-to-planting-continuity","name":"Source-to-planting continuity","description":"Maintain source identity through seed collection, nursery handling and planting so mixed ebony stock can be detected.","questions":[{"text":"Which identified maternal trees or source population supplied this accession?","id":"source-to-planting-continuity-q01","kind":"provenance"},{"text":"What provenance evidence supports placing this stock at the proposed restoration site?","id":"source-to-planting-continuity-q02","kind":"action"}]}]}]},{"id":"reproduction-and-renewal","name":"Reproduction and renewal","description":"Connect reproductive observations to seed handling and establishment of new Diospyros tessellaria trees.","layers":[{"id":"reproductive-observation","name":"Reproductive observation","description":"Build tree-specific and site-specific evidence for flowering and fruiting.","findings":[{"id":"dated-reproductive-evidence","name":"Dated reproductive evidence","description":"Record flowers and fruits on identified trees without inferring reproductive sex or maturity from the absence of fruit.","questions":[{"text":"Which trees bear buds, flowers or fruits on each survey date, and in what observed abundance?","id":"dated-reproductive-evidence-q01","kind":"measurement"},{"text":"What species-specific evidence establishes the breeding system and any constraints on fruit production?","id":"dated-reproductive-evidence-q02","kind":"definition"}]}]},{"id":"seed-to-established-tree","name":"Seed to established tree","description":"Follow identified seed lots and naturally emerging seedlings through establishment.","findings":[{"id":"establishment-outcomes","name":"Establishment outcomes","description":"Keep germination, nursery survival and field recruitment distinct; propagation requirements remain hypotheses until tested for this species.","questions":[{"text":"What germination and survival outcomes follow each documented seed-storage and sowing treatment?","id":"establishment-outcomes-q01","kind":"measurement"},{"text":"Which naturally established seedlings survive repeat surveys, and what evidence supports their species identity?","id":"establishment-outcomes-q02","kind":"measurement"}]}]}]},{"id":"condition-and-conservation-decisions","name":"Condition and conservation decisions","description":"Assess individual condition and population evidence before choosing management actions.","layers":[{"id":"tree-and-stand-condition","name":"Tree and stand condition","description":"Track deterioration and potential pressures without assigning unsupported causes.","findings":[{"id":"damage-and-renewal-assessment","name":"Damage and renewal assessment","description":"Combine repeated crown, stem and recruitment observations to identify stands needing closer investigation.","questions":[{"text":"How have crown condition, stem damage and seedling or sapling abundance changed between surveys?","id":"damage-and-renewal-assessment-q01","kind":"measurement"},{"text":"What evidence distinguishes competition, browsing, disease or physical damage as a cause at this site?","id":"damage-and-renewal-assessment-q02","kind":"provenance"}]}]},{"id":"evidence-led-intervention","name":"Evidence-led intervention","description":"Connect conservation assessments and local diagnoses to reviewable actions.","findings":[{"id":"assessment-and-action-basis","name":"Assessment and action basis","description":"Attach dates and authorities to conservation assessments and management restrictions; do not convert a historical status label into a current management rule.","questions":[{"text":"Which latest authoritative assessment and population evidence support the conservation priority assigned to this species?","id":"assessment-and-action-basis-q01","kind":"provenance"},{"text":"What evidence, permissions and measurable outcomes justify seed collection, planting or vegetation management at this site?","id":"assessment-and-action-basis-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of Diospyros tessellaria this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of Diospyros tessellaria this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of Diospyros tessellaria this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of Diospyros tessellaria this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these regional variation hold for the sense of Diospyros tessellaria this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of Diospyros tessellaria this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Record sightings of Diospyros tessellaria with location for conservation surveys.","Explain its status as an endemic ebony of Mauritius and the threats it faces.","Support propagation and restoration work run by conservation bodies."],"mustNot":["Help anyone fell, collect or trade wild trees or their timber without legal authorization.","Publish exact locations of rare individual trees where this invites illegal felling.","Label timber as this species without verified provenance.","Introduce plants or soil to native forest sites without the managing authority's approval."],"requiresHuman":["Removing or pruning a tree in a protected area or restoration site."]},"ethics":{"considerations":["Endemic island ebonies were heavily logged and survive in small remnant populations.","Ebony timber is valuable, which makes illegal felling tempting."],"affectedParties":["The species itself","People of Mauritius and their heritage","Conservation workers"]},"owners":{"steward":"Nobody owns the species; the national forestry and conservation authorities of Mauritius answer for wild trees.","roles":[],"masterSystems":["Herbarium and biodiversity occurrence databases"]},"relations":[{"target":"Q11992872","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.diospyros-tessellaria","Wikidata: Q15346008 (https://www.wikidata.org/wiki/Q15346008)"]},"properties":{"applicability":"required","items":["Identification confidence: unverified label | provisional field identification | expert-confirmed identification","Identification evidence: Linked voucher, photographs, determiner, determination date and botanical reference","Leaf diagnostic measurements: Blade length, blade width and petiole length in mm, with leaf developmental stage","Leaf translucency: Margins and veins recorded separately as visible | absent | ambiguous | unobserved under backlighting","Stem size: Height in m; stem diameter in cm with measurement height and buttress or branching exceptions","Establishment origin: wild-origin | planted | nursery-raised | uncertain","Source lineage: Source locality, maternal tree where known, collection event and nursery accession","Reproductive condition: buds | flowers | immature fruit | mature fruit | no structures observed, each dated","Recruitment: Seedling and sapling counts per surveyed m², with stage definitions and survey date","Crown condition: Estimated live-crown and dieback percentages using a stated observation method"]},"recognition":{"applicability":"required","items":["An evergreen tree with leathery, glossy leaves in native Mauritian forest.","Bark with a cracked, tessellated pattern.","Very dark, dense heartwood when cut."]},"capabilities":{"applicability":"required","items":["Compare a candidate tree with botanical references and flag unresolved identification for expert review.","Map verified occurrences while distinguishing wild trees from planted accessions.","Schedule repeat observations from locally recorded flowering, fruiting and recruitment.","Trace seed collections and nursery plants to their identified source trees.","Compare survival and growth across documented restoration treatments.","Recommend monitoring or intervention only where diagnosis, provenance and applicable permissions support it."]},"hazards":{"applicability":"required","items":["Small remnant populations are at risk from logging, invasive plants and habitat loss.","Mislabelled ebony in trade can hide illegal felling."]},"interfaces":{"applicability":"required","items":["The Convention on Biological Diversity, adopted by its contracting states, provides an international framework applicable to conserving this endemic species and its habitat."]},"context":{"applicability":"required","items":["This evergreen tree is encountered in the native forests of Mauritius and in conservation collections.","It is studied and cultivated to support endemic forest conservation, regeneration and ecological research.","Its association with ebony timber also makes accurate species identification relevant to historical wood collections."]}},"sources":[{"title":"Wikidata item Q15346008: Diospyros tessellaria","url":"https://www.wikidata.org/wiki/Q15346008","note":"identity and sense of the item"},{"title":"Wikipedia: Diospyros tessellaria","url":"https://en.wikipedia.org/wiki/Diospyros_tessellaria","note":"general description of the item"}],"openQuestions":["Which authoritative botanical key supplies validated diagnostic characters and measurements across juvenile and adult stages, and how reliable is leaf translucency?","What are the latest authoritative conservation assessment, population trend and documented site-specific threats?","What breeding system, flowering and fruiting schedules, pollinators and dispersal agents are demonstrated for this species?","What seed-storage behaviour, germination treatments and nursery conditions have been experimentally established?","What habitat limits and population genetic structure should govern restoration-site selection and movement of planting stock?"],"resources":{"spec":"/models/things/publications/thing-q15346008/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q15346008/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T09:12:43Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:26+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}