# Hendrik Joän Calkoen

> Dutch mycologist (1855-1937)

**Wikidata**: [Q123676411](https://www.wikidata.org/wiki/Q123676411)  
**Source**: https://4ort.xyz/entity/hendrik-jo-n-calkoen


## References

1. [Source](https://www.biodiversitylibrary.org/page/33266619)
2. Virtual International Authority File