Reference library · Living world · Field & herbarium

Plants, fungi & lichens

Plant and fungal identifications depend on structures that are easily missing from a single photograph: reproductive parts, leaf arrangement, hairs, spores, substrate and sometimes chemistry or DNA. This section begins with resources that help describe and compare an organism, then separates those from services whose job is to settle names. Australian references are prominent because they are the most useful regional route for Clio's home audience, alongside global authorities and carefully chosen specialist sources.

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LIMITS
What this method can and cannot settle

A photograph of habit or colour often supports a family, genus or species group, but many vascular plants need flowers or fruit, bryophytes need microscopic leaf and cell characters, fungi need spore and tissue characters, and lichens can require microscopy or chemical tests. Never infer edibility from a photograph or a database match. If the diagnostic structure, life stage, substrate or test is missing, report the highest defensible rank and state what would resolve it.

Before you reach for an atlas

Record the characters first.

Matching a photograph against a memory is how misidentifications happen. Working through these in order gives you a description that someone else can check — and that stays useful even if the determination later changes.

  1. Whole organism and growth form

    Photograph the organism in place before taking close views.

    Record height or dimensions, habit, branching, attachment and whether it is solitary, colonial, tufted, crustose, foliose or otherwise structured. Include a scale and do not rely on colour alone.

  2. Diagnostic structures

    Record leaves, stems, flowers, fruiting bodies, gills or pores from the views a key asks for.

    For plants, arrangement, margins, venation, hairs and reproductive parts matter. For fungi and lichens, cap, hymenium, attachment, reproductive structures and reactions may matter more than the overall silhouette.

  3. Substrate, host and habitat

    State exactly what it was growing on and the surrounding habitat.

    Soil, wood, bark, rock, leaf litter, living host and water regime can be diagnostic. Record the host only when it is itself identified with adequate evidence.

  4. Microscopic and chemical evidence

    If used, record spore dimensions, preparation, optics and every reagent or sequence marker.

    Measurements need units, sample size and calibration. Lichen spot tests and fungal microscopy are procedures with controls and limitations, not labels to add after the fact.

These are the observations. Standards covers the vocabularies that carry them into a record — including Darwin Core for biological occurrences, REMBI and OME for imaging, and ABCD-EFG for geological material — while each observation profile records its own method-specific context. Prepare a contribution covers what to keep alongside the files themselves.

Resources

Grouped by the question you are asking.

A resource can appear under more than one heading. Each entry states who maintains it, what it is best for, and where it stops being reliable.

Describe what you observed

Character guides and controlled terminology, so your description means the same thing to the next reader.

Flora of Australia

Australian Biological Resources Study, Council of Heads of Australasian Herbaria and Atlas of Living Australia

The current national platform for Australian plant descriptions, identification keys, illustrations, distributions and habitat accounts.

Best for
Working from recorded morphology through an Australian key rather than matching a single photograph.
Limits
Authoritative where a group has been treated, but the electronic flora is still expanding and some families or profiles remain incomplete.
Coverage
Australian native and naturalised plants, with treatment depth varying by group.
Reuse
CC BY unless a page, image or contributing source states otherwise.
Identification key Open Research pass ·

PlantNET — NSW Flora Online

National Herbarium of New South Wales, Botanic Gardens of Sydney

A detailed regional flora with interactive keys, descriptions, images, maps and herbarium-linked records.

Best for
Identifying New South Wales plants from diagnostic characters and checking local distribution against herbarium evidence.
Limits
Primarily New South Wales. State treatments can differ from the national census, and determinations outside the region need an appropriate local flora.
Coverage
New South Wales vascular plants, including native and naturalised taxa.
Reuse
Botanic Gardens of Sydney citation and reuse terms apply; image rights can differ by contributor.
Identification key Open Research pass ·

Bryophytes of Australia

Australian Biological Resources Study and Atlas of Living Australia, with specialist contributors

National descriptions, habitat, distribution and interactive keys for Australian mosses, liverworts and hornworts.

Best for
Moving an Australian bryophyte observation from growth form toward a defensible taxon using field and microscopic characters.
Limits
Some profiles are explicitly partial, and many species cannot be resolved reliably without microscopy and a suitable technical flora.
Coverage
Australian bryophytes; descriptive coverage is still being developed.
Reuse
CC BY unless the profile, image or source states otherwise.
Identification key Open Research pass ·

Lichens of Great Britain and Ireland, third edition

British Lichen Society editorial board and specialist authors

Free specialist family treatments and identification keys progressively replacing the older printed British and Irish lichen flora.

Best for
Working through technical lichen characters with a current specialist treatment rather than relying on colour photographs.
Limits
Regional and still incomplete. The treatments are technical and often require microscopy or chemical tests; the older LGBI2 genus key is acknowledged as outdated.
Coverage
Great Britain and Ireland; family treatments are released progressively.
Reuse
British Lichen Society and individual publication terms apply.
Identification key Open Research pass ·

Compare against reference evidence

Atlases, catalogues and reference collections for comparing an unknown with documented material or measurements.

Plants of the World Online

Royal Botanic Gardens, Kew, using the World Checklist of Vascular Plants and contributing sources

A global vascular-plant reference joining accepted names, synonyms, native ranges, descriptions, literature and extensive imagery.

Best for
Checking the accepted global treatment of a vascular-plant name and comparing distribution and available herbarium imagery.
Limits
It is not a universal diagnostic key. Descriptions and images are uneven among taxa, and regional floras can legitimately adopt a different current treatment.
Coverage
Global vascular plants; coverage depth varies by family and region.
Reuse
Kew and contributing-provider terms apply; check the rights statement attached to data and images before reuse.
Taxonomic authority Open Research pass ·

Flora of Australia

Australian Biological Resources Study, Council of Heads of Australasian Herbaria and Atlas of Living Australia

The current national platform for Australian plant descriptions, identification keys, illustrations, distributions and habitat accounts.

Best for
Working from recorded morphology through an Australian key rather than matching a single photograph.
Limits
Authoritative where a group has been treated, but the electronic flora is still expanding and some families or profiles remain incomplete.
Coverage
Australian native and naturalised plants, with treatment depth varying by group.
Reuse
CC BY unless a page, image or contributing source states otherwise.
Identification key Open Research pass ·

PlantNET — NSW Flora Online

National Herbarium of New South Wales, Botanic Gardens of Sydney

A detailed regional flora with interactive keys, descriptions, images, maps and herbarium-linked records.

Best for
Identifying New South Wales plants from diagnostic characters and checking local distribution against herbarium evidence.
Limits
Primarily New South Wales. State treatments can differ from the national census, and determinations outside the region need an appropriate local flora.
Coverage
New South Wales vascular plants, including native and naturalised taxa.
Reuse
Botanic Gardens of Sydney citation and reuse terms apply; image rights can differ by contributor.
Identification key Open Research pass ·

Bryophytes of Australia

Australian Biological Resources Study and Atlas of Living Australia, with specialist contributors

National descriptions, habitat, distribution and interactive keys for Australian mosses, liverworts and hornworts.

Best for
Moving an Australian bryophyte observation from growth form toward a defensible taxon using field and microscopic characters.
Limits
Some profiles are explicitly partial, and many species cannot be resolved reliably without microscopy and a suitable technical flora.
Coverage
Australian bryophytes; descriptive coverage is still being developed.
Reuse
CC BY unless the profile, image or source states otherwise.
Identification key Open Research pass ·

Lichens of Great Britain and Ireland, third edition

British Lichen Society editorial board and specialist authors

Free specialist family treatments and identification keys progressively replacing the older printed British and Irish lichen flora.

Best for
Working through technical lichen characters with a current specialist treatment rather than relying on colour photographs.
Limits
Regional and still incomplete. The treatments are technical and often require microscopy or chemical tests; the older LGBI2 genus key is acknowledged as outdated.
Coverage
Great Britain and Ireland; family treatments are released progressively.
Reuse
British Lichen Society and individual publication terms apply.
Identification key Open Research pass ·

Fungimap

Fungimap Inc., an Australian nonprofit organisation and registered charity

Australian field guides, identification support and mapped observations connecting skilled amateurs, mycologists and public recording platforms.

Best for
Learning the field characters of conspicuous Australian macrofungi and finding an appropriate expert community.
Limits
Strongest for visible macrofungi rather than microfungi. Community identifications still need diagnostic support, and the resource must never be used to infer edibility or safety.
Coverage
Australia, especially conspicuous and target macrofungi.
Reuse
Site, publication and contributed-media terms vary; check the item before reuse.
Contributing
Public participation is routed through Fungimap activities and linked observation platforms; account requirements depend on the activity.
Society or network Open Research pass ·

Resolve the name or identifier

Authorities that settle an accepted biological or mineral name, astronomical designation or other stable identifier.

Plants of the World Online

Royal Botanic Gardens, Kew, using the World Checklist of Vascular Plants and contributing sources

A global vascular-plant reference joining accepted names, synonyms, native ranges, descriptions, literature and extensive imagery.

Best for
Checking the accepted global treatment of a vascular-plant name and comparing distribution and available herbarium imagery.
Limits
It is not a universal diagnostic key. Descriptions and images are uneven among taxa, and regional floras can legitimately adopt a different current treatment.
Coverage
Global vascular plants; coverage depth varies by family and region.
Reuse
Kew and contributing-provider terms apply; check the rights statement attached to data and images before reuse.
Taxonomic authority Open Research pass ·

Australian Plant Census & Australian Plant Name Index

Council of Heads of Australasian Herbaria and Australian Biological Resources Study through the Australian National Species List

APC records nationally accepted Australian vascular-plant names; APNI provides the publication, usage and synonym trail behind them.

Best for
Settling the accepted Australian name, then tracing alternative names and the literature in which each usage appeared.
Limits
Neither service identifies an unknown plant or replaces a flora. Taxonomic concepts can change, so retain the service and access date with a determination.
Coverage
Australian native and naturalised vascular plants and their nomenclatural history.
Reuse
Australian National Species List and Australian Government reuse terms apply.
Taxonomic authority Open Research pass ·

Flora of Australia

Australian Biological Resources Study, Council of Heads of Australasian Herbaria and Atlas of Living Australia

The current national platform for Australian plant descriptions, identification keys, illustrations, distributions and habitat accounts.

Best for
Working from recorded morphology through an Australian key rather than matching a single photograph.
Limits
Authoritative where a group has been treated, but the electronic flora is still expanding and some families or profiles remain incomplete.
Coverage
Australian native and naturalised plants, with treatment depth varying by group.
Reuse
CC BY unless a page, image or contributing source states otherwise.
Identification key Open Research pass ·

PlantNET — NSW Flora Online

National Herbarium of New South Wales, Botanic Gardens of Sydney

A detailed regional flora with interactive keys, descriptions, images, maps and herbarium-linked records.

Best for
Identifying New South Wales plants from diagnostic characters and checking local distribution against herbarium evidence.
Limits
Primarily New South Wales. State treatments can differ from the national census, and determinations outside the region need an appropriate local flora.
Coverage
New South Wales vascular plants, including native and naturalised taxa.
Reuse
Botanic Gardens of Sydney citation and reuse terms apply; image rights can differ by contributor.
Identification key Open Research pass ·

Bryophytes of Australia

Australian Biological Resources Study and Atlas of Living Australia, with specialist contributors

National descriptions, habitat, distribution and interactive keys for Australian mosses, liverworts and hornworts.

Best for
Moving an Australian bryophyte observation from growth form toward a defensible taxon using field and microscopic characters.
Limits
Some profiles are explicitly partial, and many species cannot be resolved reliably without microscopy and a suitable technical flora.
Coverage
Australian bryophytes; descriptive coverage is still being developed.
Reuse
CC BY unless the profile, image or source states otherwise.
Identification key Open Research pass ·

Index Fungorum & Species Fungorum

Index Fungorum Partnership and Royal Botanic Gardens, Kew

Linked global services for fungal nomenclature, publication details and an accepted-name consensus, including lichenised fungi.

Best for
Separating the publication history of a fungal name from the currently accepted taxonomic treatment.
Limits
A nomenclatural record is not an identification, and a name present in Index Fungorum is not necessarily the accepted one. Visual and ecological evidence is limited.
Coverage
Global fungi, including lichenised fungi, with source-dependent taxonomic depth.
Reuse
Kew and database terms apply; no blanket licence for all linked content is stated.
Taxonomic authority Open Research pass ·

Australian Fungi List & Fungi Name Index

Australian Biological Resources Study and Australian fungal curators through the Australian National Species List

Australia's current accepted fungal classification connected to the national nomenclatural and bibliographic trail.

Best for
Checking which fungal name Australia currently accepts and tracing the usages and synonyms behind it.
Limits
It is a name service, not an image key. A large proportion of Australia's fungal diversity remains undescribed, so a missing species may reflect a real knowledge gap.
Coverage
Australian fungi; taxonomic and nomenclatural records rather than comprehensive identification media.
Reuse
Australian National Species List and Australian Government reuse terms apply.
Taxonomic authority Open Research pass ·

Australian Lichen Checklist & Name Index

Australian Biological Resources Study through the Australian National Species List

The current national destination for accepted Australian lichen names and their nomenclatural records.

Best for
Verifying the accepted Australian name after morphology, microscopy or chemistry has produced a candidate.
Limits
It provides little visual identification help. Many lichens require microscopic structures or chemical characters that a field photograph cannot show.
Coverage
Australian lichens and lichenicolous fungi.
Reuse
Australian National Species List and Australian Government reuse terms apply.
Taxonomic authority Open Research pass ·

Lichens of Great Britain and Ireland, third edition

British Lichen Society editorial board and specialist authors

Free specialist family treatments and identification keys progressively replacing the older printed British and Irish lichen flora.

Best for
Working through technical lichen characters with a current specialist treatment rather than relying on colour photographs.
Limits
Regional and still incomplete. The treatments are technical and often require microscopy or chemical tests; the older LGBI2 genus key is acknowledged as outdated.
Coverage
Great Britain and Ireland; family treatments are released progressively.
Reuse
British Lichen Society and individual publication terms apply.
Identification key Open Research pass ·

Place it in context

Occurrence, stratigraphic, catalogue and archive services that situate a record in space, time and literature.

Plants of the World Online

Royal Botanic Gardens, Kew, using the World Checklist of Vascular Plants and contributing sources

A global vascular-plant reference joining accepted names, synonyms, native ranges, descriptions, literature and extensive imagery.

Best for
Checking the accepted global treatment of a vascular-plant name and comparing distribution and available herbarium imagery.
Limits
It is not a universal diagnostic key. Descriptions and images are uneven among taxa, and regional floras can legitimately adopt a different current treatment.
Coverage
Global vascular plants; coverage depth varies by family and region.
Reuse
Kew and contributing-provider terms apply; check the rights statement attached to data and images before reuse.
Taxonomic authority Open Research pass ·

Australian Plant Census & Australian Plant Name Index

Council of Heads of Australasian Herbaria and Australian Biological Resources Study through the Australian National Species List

APC records nationally accepted Australian vascular-plant names; APNI provides the publication, usage and synonym trail behind them.

Best for
Settling the accepted Australian name, then tracing alternative names and the literature in which each usage appeared.
Limits
Neither service identifies an unknown plant or replaces a flora. Taxonomic concepts can change, so retain the service and access date with a determination.
Coverage
Australian native and naturalised vascular plants and their nomenclatural history.
Reuse
Australian National Species List and Australian Government reuse terms apply.
Taxonomic authority Open Research pass ·

PlantNET — NSW Flora Online

National Herbarium of New South Wales, Botanic Gardens of Sydney

A detailed regional flora with interactive keys, descriptions, images, maps and herbarium-linked records.

Best for
Identifying New South Wales plants from diagnostic characters and checking local distribution against herbarium evidence.
Limits
Primarily New South Wales. State treatments can differ from the national census, and determinations outside the region need an appropriate local flora.
Coverage
New South Wales vascular plants, including native and naturalised taxa.
Reuse
Botanic Gardens of Sydney citation and reuse terms apply; image rights can differ by contributor.
Identification key Open Research pass ·

Index Fungorum & Species Fungorum

Index Fungorum Partnership and Royal Botanic Gardens, Kew

Linked global services for fungal nomenclature, publication details and an accepted-name consensus, including lichenised fungi.

Best for
Separating the publication history of a fungal name from the currently accepted taxonomic treatment.
Limits
A nomenclatural record is not an identification, and a name present in Index Fungorum is not necessarily the accepted one. Visual and ecological evidence is limited.
Coverage
Global fungi, including lichenised fungi, with source-dependent taxonomic depth.
Reuse
Kew and database terms apply; no blanket licence for all linked content is stated.
Taxonomic authority Open Research pass ·

Australian Fungi List & Fungi Name Index

Australian Biological Resources Study and Australian fungal curators through the Australian National Species List

Australia's current accepted fungal classification connected to the national nomenclatural and bibliographic trail.

Best for
Checking which fungal name Australia currently accepts and tracing the usages and synonyms behind it.
Limits
It is a name service, not an image key. A large proportion of Australia's fungal diversity remains undescribed, so a missing species may reflect a real knowledge gap.
Coverage
Australian fungi; taxonomic and nomenclatural records rather than comprehensive identification media.
Reuse
Australian National Species List and Australian Government reuse terms apply.
Taxonomic authority Open Research pass ·

Australian Lichen Checklist & Name Index

Australian Biological Resources Study through the Australian National Species List

The current national destination for accepted Australian lichen names and their nomenclatural records.

Best for
Verifying the accepted Australian name after morphology, microscopy or chemistry has produced a candidate.
Limits
It provides little visual identification help. Many lichens require microscopic structures or chemical characters that a field photograph cannot show.
Coverage
Australian lichens and lichenicolous fungi.
Reuse
Australian National Species List and Australian Government reuse terms apply.
Taxonomic authority Open Research pass ·

Fungimap

Fungimap Inc., an Australian nonprofit organisation and registered charity

Australian field guides, identification support and mapped observations connecting skilled amateurs, mycologists and public recording platforms.

Best for
Learning the field characters of conspicuous Australian macrofungi and finding an appropriate expert community.
Limits
Strongest for visible macrofungi rather than microfungi. Community identifications still need diagnostic support, and the resource must never be used to infer edibility or safety.
Coverage
Australia, especially conspicuous and target macrofungi.
Reuse
Site, publication and contributed-media terms vary; check the item before reuse.
Contributing
Public participation is routed through Fungimap activities and linked observation platforms; account requirements depend on the activity.
Society or network Open Research pass ·

Learn the field

Textbooks, courses and teaching material for building the underlying competence.

Lichens of Great Britain and Ireland, third edition

British Lichen Society editorial board and specialist authors

Free specialist family treatments and identification keys progressively replacing the older printed British and Irish lichen flora.

Best for
Working through technical lichen characters with a current specialist treatment rather than relying on colour photographs.
Limits
Regional and still incomplete. The treatments are technical and often require microscopy or chemical tests; the older LGBI2 genus key is acknowledged as outdated.
Coverage
Great Britain and Ireland; family treatments are released progressively.
Reuse
British Lichen Society and individual publication terms apply.
Identification key Open Research pass ·

Fungimap

Fungimap Inc., an Australian nonprofit organisation and registered charity

Australian field guides, identification support and mapped observations connecting skilled amateurs, mycologists and public recording platforms.

Best for
Learning the field characters of conspicuous Australian macrofungi and finding an appropriate expert community.
Limits
Strongest for visible macrofungi rather than microfungi. Community identifications still need diagnostic support, and the resource must never be used to infer edibility or safety.
Coverage
Australia, especially conspicuous and target macrofungi.
Reuse
Site, publication and contributed-media terms vary; check the item before reuse.
Contributing
Public participation is routed through Fungimap activities and linked observation platforms; account requirements depend on the activity.
Society or network Open Research pass ·