# Isaac Holden

> U.S. phycologist (1832–1903)

**Wikidata**: [Q21515952](https://www.wikidata.org/wiki/Q21515952)  
**Source**: https://4ort.xyz/entity/isaac-holden


## References

1. [International Plant Names Index](https://www.ipni.org/a/4036-1)
2. [Bionomia](https://bionomia.net/dataset/b740eaa0-0679-41dc-acb7-990d562dfa37)
3. Biodiversity Heritage Library
4. author citation in botany and mycology
5. Harvard Index of Botanists
6. International Plant Names Index
7. [Index Herbariorum](http://sweetgum.nybg.org/science/ih/herbarium-details/?irn=124997#ih-collections-summary)