• The International Plant Names Index (IPNI)
  https://www.ipni.org
• Tropicos, Missouri Botanical Garden
  https://www.tropicos.org/
• The Plant List
  https://www.theplantlist.org
• Index Nominum Genericorum (ING)
  https://botany.si.edu/ing/
• Vascular Plant Families and Genera
  https://data.kew.org/vpfg1992/genlist.html#F-A
• Taxonomic Name Resolution Service, iPlant Collaborative
  https://tnrs.iplantcollaborative.org/instructions.html
• Index Hepaticarum (liverworts and hornworts)
  https://www.ville-ge.ch/musinfo/bd/cjb/hepatic/index.php
• Index Nominum Algarum
  https://ucjeps.berkeley.edu/INA.html
• Fungal names and Indexes
  https://fungalinfo.im.ac.cn/fungalname/fungalname.html
  https://www.indexfungorum.org
  https://www.mycobank.org
• PlantSystematics
  https://www.plantsystematics.org

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