| Stable identifier | Scientific Name | Media |
| https://herbarium.bgbm.org/object/B600110759 | Pannaria emodi P.M. Jørg. |
|
| Stable identifier | Scientific Name | Media |
| https://gjo.jacq.org/GJO0100850 | Riccia gothica Damsh. & Hallingb. |
|
| Stable identifier | Scientific Name | Media |
| https://gzu.jacq.org/GZU000303478 | Caloplaca chalybaea (Fr.) Müll. Arg. |
|
| https://gzu.jacq.org/GZU000293901 | Stigmidium arthrorhaphidis Hafellner & Obermayer |
|
| https://gzu.jacq.org/GZU000323347 | Ascodichaena rugosa Butin |
|
| https://gzu.jacq.org/GZU000303406 | Thelidium decipiens (Hepp ex Nyl.) Kremp. |
|
| https://gzu.jacq.org/GZU000303428 | Aspicilia calcarea (L.) Körb. |
|
| https://gzu.jacq.org/GZU000300813 | Castanea sativa Mill. |
|
| https://gzu.jacq.org/GZU000301229 | Caloplaca Th. Fr. |
|
| https://gzu.jacq.org/GZU000303441 | Caloplaca Th. Fr. |
|
| https://gzu.jacq.org/GZU000286307 | Protopannaria corticola P. M. Jørg. |
|
| https://gzu.jacq.org/GZU000277852 | Arthrorhaphis alpina var. jungens Obermayer & Poelt |
|
| Stable identifier | Scientific Name | Media |
| https://w.jacq.org/W20180006122 | Galium rotundifolium L. |
|
Publications by Walter Obermayer