# Franz Petrak

> Austrian-Czech botanist and mycologist (1886–1973)

**Wikidata**: [Q4360385](https://www.wikidata.org/wiki/Q4360385)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Franz_Petrak)  
**Source**: https://4ort.xyz/entity/franz-petrak


## References

1. Integrated Authority File
2. International Plant Names Index
3. Czech National Authority Database
4. [Bionomia](https://bionomia.net/dataset/85714c48-f762-11e1-a439-00145eb45e9a)
5. [Bionomia](https://bionomia.net/dataset/b5cdf794-8fa4-4a85-8b26-755d087bf531)
6. [Bionomia](https://bionomia.net/dataset/cd6e21c8-9e8a-493a-8a76-fbf7862069e5)
7. Bionomia
8. author citation in botany and mycology
9. Harvard Index of Botanists
10. Trove
11. Virtual International Authority File
12. National Library of Israel Names and Subjects Authority File
13. [Source](https://herbarium.bgbm.org/object/B100296858)
14. [Source](https://gzu.jacq.org/GZU000299167)
15. [Source](https://w.jacq.org/W19780010992)
16. [Source](https://prc.jacq.org/PRC403047)
17. [Source](https://brnu.jacq.org/BRNU149854)
18. [Source](https://pi.jacq.org/PI026310)
19. [Bionomia](https://bionomia.net/dataset/d415c253-4d61-4459-9d25-4015b9084fb0)
20. [Bionomia](https://bionomia.net/dataset/7bd65a7a-f762-11e1-a439-00145eb45e9a)
21. [Bionomia](https://bionomia.net/dataset/861e6afe-f762-11e1-a439-00145eb45e9a)
22. [Bionomia](https://bionomia.net/dataset/f934f8e2-32ca-46a7-b2f8-b032a4740454)
23. [Bionomia](https://bionomia.net/dataset/7e380070-f762-11e1-a439-00145eb45e9a)
24. [Bionomia](https://bionomia.net/dataset/821cc27a-e3bb-4bc5-ac34-89ada245069d)
25. [Bionomia](https://bionomia.net/dataset/064508e2-255e-4d82-9f13-05d73476cc03)