# Opegrapha atra f. atra
**Wikidata**: [Q21396900](https://www.wikidata.org/wiki/Q21396900)  
**Source**: https://4ort.xyz/entity/opegrapha-atra-f-atra


## References

1. Global Biodiversity Information Facility
2. MycoBank
3. Index Fungorum
4. [Source](https://www.mycobank.org/page/Name%20details%20page/field/Mycobank%20%23/519245)