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Type Material Policy

1. The NCMA accepts nomenclatural-type materials (e.g. holotypes and isotypes) that are (or can be) cryopreserved such that actively growing cells can be recovered when the materials are thawed.  The requirements are described in the International Code of Nomenclature for Algae, Fungi and Plants (2011 Melbourne Code).   Please Note: The requirements went into effect as of January 1, 2012. 

2. The cryopreserved type material would be assigned a "CCMP number."  Material with that CCMP number would not be freely distributed, but would rather be reserved to resolve taxonomic disputes.  The NCMA would also maintain some material of the same strain as the "authentic" strain, giving that sample a different CCMP number.  Such an "authentic" strain would also be cryopreserved, but would be freely distributed.

3. If the NCMA cannot successfully cryopreserve a newly described species, then the NCMA cannot store the "type material" on site; however, the NCMA would welcome the opportunity to access and distribute cultures of "authentic" strains.

View a PDF version of the NCMA type material policy.

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