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Societal Impact StatementAs herbaria digitize millions of plant specimens, ethnobotanical information associated with them is becoming increasingly accessible. These biocultural data include plant uses, names, and/or management practices of Indigenous Peoples and Local Communities (IPLCs). However, the absence of shared curatorial standards limits accessibility and use by IPLCs and others. We estimated and characterized ethnobotanical data associated with herbarium specimens and provide here key considerations for future work. We identified a proportionally small, yet collectively significant, number of ethnobotanical specimens, and call for coordinating best practices among global herbaria to locate, acknowledge, and responsibly share this information, together with source communities. SummaryAs herbaria digitize millions of plant specimens, those containing biocultural information are becoming increasingly accessible. This information — also known as ethnobotanical data — holds both cultural and scientific value, and may include plant uses, vernacular names, local species concepts, cultural values, and plant management practices of Indigenous Peoples and Local Communities (IPLCs). However, the lack of coordinated curatorial standards currently limits both the accessibility and effective use of this information by IPLCs, ethnobotanists, and others.To address this gap, we quantitatively estimated and characterized ethnobotanical information associated with herbarium specimens and offer key considerations to guide future work.We identified a proportionally small —yet collectively significant— number of ethnobotanical specimens, comprising approximately 1.6% of all specimen records and representing hundreds of thousands of specimens in the surveyed herbaria.We advocate for coordinating best practices to locate, acknowledge, and ethically share this information among herbaria, working together with source communities and through global cooperation. 

Abstract Peltigera globulata Miadl. & Magain, a new species in the P. ponojensis/monticola species complex of section Peltigera , is formally described. This clade was previously given the interim designation Peltigera sp. 17. It is found in sun-exposed and xeric habitats at high altitudes in Peru and Ecuador. Peltigera globulata can be easily recognized by its irregularly globulated margins covered mostly by thick, white pruina, somewhat resembling the sorediate thallus margins of P. soredians , another South American species from section Peltigera . The hypervariable region of ITS1 (ITS1-HR), which is in general highly variable among species of section Peltigera , does not have diagnostic value for species identification within the P. ponojensis/monticola complex. Nevertheless, no significant level of gene flow was detected among eight lineages representing a clade of putative species (including P. globulata ) within this complex. ITS sequences from the holotype specimens of P. monticola Vitik. (collected in 1979) and P. soredians Vitik. (collected in 1981) and lectotype specimens of P. antarctica C. W. Dodge (collected in 1941) and P. aubertii C. W. Dodge (collected in 1952) were successfully obtained through Sanger and Illumina metagenomic sequencing. BLAST results of these sequences revealed that the type specimen of P. monticola falls within the P. monticola/ponojensis 7 clade, which represents P. monticola s. str., and confirmed that the type specimen of P. aubertii falls within a clade identified previously as P. aubertii based on morphology. The ITS sequence from the type specimen of P. soredians , which superficially resembles P. globulata , confirms its placement in the P. rufescens clade. Finally, we discovered that the name P. antarctica was erroneously applied to a lineage in the P. ponojensis/monticola clade. The ITS sequence from the type specimen of P. antarctica represents a lineage within the P. rufescens clade, which is sister to the P. ponojensis/monticola clade.