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The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

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Nuytsia
The journal of the Western Australian Herbarium

Notes and new species of Acacia (Mimosaceae) from northern Australia
LEACH, G.J.

Acacia tolmerensis G. Leach is described as a new species in the informal A. platycarpa group (Sect. Plurinerves). The informal A. plectocarpa group (Sect. Juliflorae) is defined as including A. plectocarpa Cunn. ex Benth. subsp. plectocarpa, A. plectocarpa subsp. tanumbirinensis (Maiden) Pedley, A. armitii F. Muell. ex Maiden and a new species, A. echinuliflora G. Leach. Relationships within the group are discussed, descriptions and a key to all taxa in the group are provided. Distribution maps for all taxa are presented.