| Stable identifier | Scientific Name | Media |
| https://gjo.jacq.org/GJO0014701 | Agrostis rupestris All. |
|
| https://gjo.jacq.org/GJO0074089 | Agrostemma githago L. |
|
| https://gjo.jacq.org/GJO0055401 | Alyssum transsilvanicum Schur |
|
| https://gjo.jacq.org/GJO0074186 | Alyssum alyssoides (L.) L. |
|
| https://gjo.jacq.org/GJO0048699 | Anemone trifolia L. |
|
| https://gjo.jacq.org/GJO0061122 | Pulsatilla alpina subsp. alpina (L.) Delarbre |
|
| https://gjo.jacq.org/GJO0076689 | Anthyllis affinis Brittinger ex A. Kern. |
|
| https://gjo.jacq.org/GJO0077144 | Asperula tinctoria L. |
|
| https://gjo.jacq.org/GJO0018071 | Briza media L. |
|
| https://gjo.jacq.org/GJO0026555 | Carex buekii Wimm. |
|
| Stable identifier | Scientific Name | Media |
| https://gzu.jacq.org/GZU000036777 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU00040682 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU001602 | Festuca L. |
|
| https://gzu.jacq.org/GZU000025202 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU000025203 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU000025205 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU000029635 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU001601 | Poa stiriaca Fritsch & Hayek |
|
| https://gzu.jacq.org/GZU000025204 | Pseudostellaria europaea Schaeftl. |
|
| https://gzu.jacq.org/GZU000240820 | Rubus saxatilis L. |
|
Claimed natural history specimens collected or identified by Karl Mecenović
| Scientific Name | Country | Institution | Date |
| Jasione montana L. | Austria | GJO | 1954-08-30 |
| Jasione montana L. | Austria | GJO | 1950-08-19 |
| Jasione montana L. | Austria | GJO | 1935-08-18 |
| Rubus saxatilis L. | Austria | GZU | 1964-07-19 |
| Poa stiriaca Fritsch & Hayek | Austria | GZU | 1936-09-20 |
| Poa stiriaca Fritsch & Hayek | Austria | GZU | 1936-06-02 |
| Poa stiriaca Fritsch & Hayek | Austria | GZU | 1951-12-30 |
| Poa stiriaca Fritsch & Hayek | Austria | GZU | 1936-06-14 |
| Festuca L. | Austria | GZU | 1951-10-14 |
| Euphorbia verrucosa L. | Austria | GJO | 1969-05-30 |