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What is the International Association for Plant Taxonomy?
The International Association for Plant Taxonomy (IAPT) is a global membership association for people who study, name and classify algae, fungi and plants. Founded in 1950, it describes itself as supporting taxonomy, systematics and nomenclatural research, with nearly 1,000 members across more than 60 countries. Its audience spans professional researchers, students and early-career taxonomists and systematists.
What it actually does
- Publishes. It produces Taxon, a leading journal in systematics, phylogeny and taxonomy, plus the Regnum Vegetabile book series. It is also the publisher and custodian of the International Code of Nomenclature for algae, fungi and plants.
- Governs nomenclature. Taxon is the venue for proposals to amend the Code, which matters if your work involves naming or renaming taxa.
- Funds research. Competitive research and travel grants go to students and early-career researchers.
- Runs events. Symposia and workshops, in person and online, including a nomenclature workshop noted for 2026.
- Connects members. An international community, a jobs directory and links to key online resources.
Why the Code connection matters most
For most plant, algal and fungal biologists, the association's distinctive role is not networking but rule-keeping. If you are describing a new species, revising a genus or resolving a naming conflict, the Code is the binding reference, and IAPT is where amendments to it are formally proposed and published. That makes membership more consequential for nomenclatural work than for general botany.
Who should consider joining
| Your situation | Likely value |
|---|---|
| Publishing taxonomic or phylogenetic research | Journal access, community, venue for nomenclatural proposals |
| Student or early-career researcher | Grants, travel support, workshops, jobs directory |
| Working mainly in ecology, genetics or conservation | Useful news and resources, but the Code and Taxon focus may be less central |
Membership is stated as open to everyone, and the site lists a plans and pricing page at International Association for Plant Taxonomy if you want current rates and tiers.
A practical next step
If you are unsure whether it fits, check whether your last three projects involved naming, describing or reclassifying organisms. If yes, look at the Taxon author guidelines and the grant deadlines before deciding on a membership tier; if no, follow the news and the Code updates without joining. Related bodies worth knowing are the International Botanical Congress, which meets in Cape Town in 2029, and the International Association for Plant Taxonomy's own nomenclature workshop for hands-on training.
How do I become a member of IAPT and what does membership cost?
Membership is open to everyone, and you join by signing up through the association's website. IAPT describes itself as a global community of nearly 1,000 professional, student and early-career plant, algal and fungal taxonomists and systematists in more than 60 countries, so the practical step is to go to the membership area of International Association for Plant Taxonomy and complete the application there.
What membership includes
- Access to specialist workshops and symposia, including online events
- Links to key online resources for taxonomy and systematics
- Taxonomic and systematics news, views and reviews
- An online directory of employment opportunities in the field
- Eligibility to apply for IAPT research and travel grants aimed at students and early-career researchers
What it costs
The website lists a "Plans & Pricing" page, which indicates that pricing is tiered rather than a single flat fee. The page evidence does not give amounts, so treat any figure you see elsewhere as unverified until you check that page yourself. Typical association structures of this kind differentiate between:
| Member type | Why the tier matters |
|---|---|
| Student / early-career | Usually the lowest rate; grants are also targeted here |
| Regular professional | Standard rate, often with the journal included |
| Institutional / library | Priced for organisations rather than individuals |
A useful next step
Before paying, decide whether you mainly want the journal Taxon (the leading journal for systematics, phylogeny and taxonomy of algae, fungi and plants, and the only place to publish proposals to amend the International Code of Nomenclature), or the community and grant access. If it is the journal, check whether your institution already subscribes, since that can change which tier makes sense for you. If you are a student or early-career researcher, look at the grant and workshop offerings first — they are often the strongest reason to join at that stage.
What are the steps to publish a nomenclature proposal in the journal TAXON?
Publishing a nomenclature proposal in TAXON is a formal process governed by the International Code of Nomenclature for algae, fungi and plants (ICN). The IAPT, which publishes TAXON and serves as custodian of the Code, notes that TAXON is the only place to publish proposals to amend the Code or nomenclatural proposals. The steps below outline the typical path.
1. Confirm you have a nomenclatural proposal
Proposals to conserve, reject, or amend names, or to change the Code itself, belong in TAXON. Ordinary taxonomic papers describing new species or revisions are submitted as regular articles, not as proposals.
2. Prepare the proposal according to the Code
Draft the proposal with the required elements: the name or provision concerned, the reason, supporting evidence, and any required type or bibliographic details. Consult the current Code and recent TAXON issues for the accepted format, since proposal conventions are standardized.
3. Submit through TAXON's editorial system
Submit the manuscript to TAXON following its author guidelines. Proposals are peer-reviewed, and the editor may route them to the relevant nomenclature committee.
4. Committee review and publication
After review, the proposal is published in TAXON so the taxonomic community can consider it. Final decisions on conservation, rejection, or Code amendments rest with the relevant international bodies, and outcomes are reported in the journal.
Practical next step
Before drafting, read the IAPT's own guidance and the current Code, then check recent TAXON proposals to match structure and length. For authoritative details, see International Association for Plant Taxonomy. The formal rules are maintained through the Code, and the journal's author instructions are the definitive submission reference.
Who this is for
This process suits professional and early-career taxonomists, systematists, and mycologists or phycologists who need a stable, internationally recognized name. If your goal is simply to describe a new species, a standard taxonomic paper is usually the right route; reserve a formal proposal for cases where existing names or Code provisions need correction.
How can I apply for IAPT research or travel grants?
IAPT states that it provides research and travel grants to students and early-career researchers, but the page evidence supplied here does not include the application form, deadlines, eligibility rules or submission route. So the practical answer is: use the association's own grants pages and the contact route published there rather than relying on a general description.
Start at the official site, International Association for Plant Taxonomy, and look for the grants section. If the page only summarises the scheme, the next step is to contact the IAPT office or the named grants contact listed on the site; they can confirm the current call, required documents and the correct submission address.
A typical application in this field usually needs:
- A short research or travel plan, with dates if travel is involved
- A budget showing what the grant would cover and what other funds are confirmed or pending
- A CV or academic record
- A supervisor or institutional endorsement, especially for student applicants
- A statement of how the work fits taxonomy, systematics or nomenclature of algae, fungi or plants
Two practical points matter more than the wording of a form. First, travel grants are usually tied to a specific meeting or visit, so the conference or herbarium dates drive the deadline. Second, research grants are competitive, so a clear link to the IAPT's stated scope — taxonomic, systematic and nomenclatural research — will matter more than a broad biodiversity proposal.
If you are unsure whether you qualify as an early-career researcher, ask before preparing a full application. That single email can save weeks of work.
What is the International Code of Nomenclature for algae, fungi and plants and how does it affect naming new species?
The International Code of Nomenclature for algae, fungi and plants (ICN) is the internationally agreed rulebook for naming algae, fungi and plants. The IAPT describes itself as its publisher and custodian, and facilitates its governance and maintenance. The Code does not decide what counts as a species — that is a scientific judgement — but it sets the rules for whether a proposed name is validly published and can be used.
What the Code governs
- How names are formed and spelled (including author citations).
- What must be published, and where, for a name to be validly published.
- Which name is correct when several compete (priority, starting dates, conservation).
- How to handle types, hybrids, fossils and special cases.
How it affects naming a new species
If you describe a new species, you must publish a diagnosis or description, designate a type specimen, and publish the name in an acceptable place with the required details. Get any of these wrong and the name may be invalid or illegitimate, meaning other researchers cannot properly use it. The ICN also decides which of two competing names wins, so it directly affects the name that ends up in databases, herbaria and field guides.
Where IAPT fits
The IAPT publishes the Code itself, along with Taxon and the Regnum Vegetabile book series. Taxon is the only place to publish proposals to amend the Code or nomenclatural proposals, so it is the working channel for changing the rules. The association also runs nomenclature workshops and symposia, which matter because applying the Code correctly is a skill learned from practice, not just reading.
Practical next step
If you are naming a taxon, start with the current Code and the relevant committee guidance, then check the rules for your group before you publish. For broader context, compare with International Association for Plant Taxonomy and related bodies such as International Union of Biological Sciences. If your work involves cultivated plants, note that a separate code governs those names — a common source of confusion.
What events and workshops does IAPT organize for plant taxonomists?
IAPT organizes events that mix large international symposia with focused nomenclature training. Its site highlights symposia at international meetings, held around the world and online, plus specialist workshops. Two concrete examples appear in its news: a nomenclature workshop scheduled for 2026, and the 21st International Botanical Congress in Cape Town in 2029, where IAPT typically contributes programming.
For a taxonomist, the practical difference is:
- Nomenclature workshops suit anyone who needs to apply or propose changes to the International Code of Nomenclature for algae, fungi and plants — students, early-career researchers, and curators revising a group.
- Symposia at international meetings suit researchers presenting systematic or phylogenetic work and building collaborations.
- Online formats lower travel cost, which matters for members outside Europe and North America.
A useful next step: if your goal is naming decisions for a revision, prioritize the nomenclature workshop; if your goal is visibility for new results, target the congress symposia. Check the association's news page for dates and registration, and compare with broader botanical meetings such as Botany Conference or the International Botanical Congress if you are planning a year around one trip.
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