
Biography
| Stable identifier | Scientific Name | Media |
| https://herbarium.bgbm.org/object/B100278119 | Rubus langei Jensen ex Focke |
|
| https://herbarium.bgbm.org/object/B100278120 | Rubus langei Jensen ex Focke |
|
| Stable identifier | Scientific Name | Media |
| https://dr.jacq.org/DR045729 | Cystopteris fragilis (L.) Bernh. |
|
| https://dr.jacq.org/DR059323 | Poa chaixii Vill. |
|
| https://dr.jacq.org/DR063217 | Betula pendula Roth |
|
| Stable identifier | Scientific Name | Media |
| https://gjo.jacq.org/GJO0131745 | Cirsium palustre (L.) Scop. x Cirsium tuberosum (L.) All. |
|
| https://gjo.jacq.org/GJO0137417 | Laserpitium prutenicum L. |
|
| https://gjo.jacq.org/GJO0130748 | Cirsium acaulon (L.) A. A. Weber ex F. H. Wigg. x Cirsium tuberosum (L.) All. |
|
| https://gjo.jacq.org/GJO0131744 | Cirsium palustre (L.) Scop. x Cirsium tuberosum (L.) All. |
|
| https://gjo.jacq.org/GJO0131742 | Cirsium palustre (L.) Scop. x Cirsium tuberosum (L.) All. |
|
| https://gjo.jacq.org/GJO0133128 | Cirsium oleraceum (L.) Scop. x Cirsium tuberosum (L.) All. |
|
| https://gjo.jacq.org/GJO0131741 | Cirsium palustre (L.) Scop. x Cirsium tuberosum (L.) All. |
|
| https://gjo.jacq.org/GJO0131740 | Cirsium palustre (L.) Scop. x Cirsium tuberosum (L.) All. |
|
| Stable identifier | Scientific Name | Media |
| https://je.jacq.org/JE00026552 | Rubus langei G. Jensen ex Frid. & Gelert |
|
| https://je.jacq.org/JE00026610 | Rubus scissus W. C. R. Watson |
|
| https://je.jacq.org/JE00027315 | Rubus silvaticus Weihe & Nees |
|
| https://je.jacq.org/JE00027075 | Rubus sulcatus Vest |
|
| https://je.jacq.org/JE00026611 | Rubus scissus W. C. R. Watson |
|
| https://je.jacq.org/JE00027233 | Rubus radula Weihe |
|
| https://je.jacq.org/JE00027314 | Rubus silvaticus Weihe & Nees |
|
| https://je.jacq.org/JE00027232 | Rubus radula Weihe |
|
| https://je.jacq.org/JE00026553 | Rubus langei G. Jensen ex Frid. & Gelert |
|
| Stable identifier | Scientific Name | Media |
| https://w.jacq.org/W18890094550 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W19290007249 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W18890075430 | Hieracium pilosella L. |
|
| https://w.jacq.org/W0077244 | Hieracium lactucella subsp. lactucella Wallr. |
|
| https://w.jacq.org/W18890090060 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W18890036753 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W18890150794 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W18890079631 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W18890038003 | Hieracium schultesii F. W. Schultz |
|
| https://w.jacq.org/W0303618 | Salix fragilis L. x Salix pentandra L. |
|
Claimed natural history specimens collected or identified by Gustav Maass
| Scientific Name | Country | Institution | Date |
| Rubus caesius X candicans | LI | 1880 | |
| Rubus caesius X radula | LI | 1880 | |
| Rubus fissus Lindl. | LI | 1873-06 | |
| Rubus sulcatus Vest. | LI | 1873-06 | |
| Rubus langei Jensen ex Frid. & Gelert | Germany | JE | |
| Rubus langei Jensen ex Frid. & Gelert | Germany | JE | |
| Rubus sulcatus Vest | Germany | JE | 1883-09 |
| Rubus sulcatus Vest | Germany | JE | 1883-09 |
| Rubus glaucovirens G.Maass | Germany | BC | |
| Rubus fissus Lindl. | Germany | BC |