| Stable identifier | Scientific Name | Media |
| http://herbarium.bgbm.org/object/B200082311 | Asplenium septentrionale (L.) Hoffm. |
|
| http://herbarium.bgbm.org/object/B200083658 | Botrychium matricariifolium (A. Braun ex Döll) W. D. J. Koch |
|
| http://herbarium.bgbm.org/object/B700011956 | Octospora humosa (Fr.) Dennis |
|
| http://herbarium.bgbm.org/object/B700011977 | Neottiella vivida (Nyl.) Dennis |
|
| http://herbarium.bgbm.org/object/B700100179 | Leveillula taurica (Lév.) G. Arnaud |
|
| http://herbarium.bgbm.org/object/B700012015 | Byssonectria semiimmersa (P. Karst.) Benkert |
|
| http://herbarium.bgbm.org/object/B700011948 | Scutellinia umbrorum (Fr.) Lambotte |
|
| http://herbarium.bgbm.org/object/B700012011 | Pseudombrophila theioleuca Rolland |
|
| http://herbarium.bgbm.org/object/B700012005 | Pseudombrophila merdaria (Fr.) Brumm. |
|
| http://herbarium.bgbm.org/object/B700011954 | Neottiella rutilans (Fr.) Dennis |
|
| Stable identifier | Scientific Name | Media |
| https://dr.jacq.org/DR046155 | Azolla filiculoides Lam. |
|
| https://dr.jacq.org/DR065289 | Potamogeton lucens L. |
|
| https://dr.jacq.org/DR045172 | Selaginella kraussiana (Kunze) A. Braun |
|
| https://dr.jacq.org/DR065158 | Potamogeton salicifolius Wolfg. |
|
| https://dr.jacq.org/DR046159 | Azolla filiculoides Lam. |
|
| https://dr.jacq.org/DR045981 | Equisetum palustre L. |
|
| https://dr.jacq.org/DR046476 | Marsilea drummondii A. Braun |
|
| https://dr.jacq.org/DR046700 | Equisetum litorale Kühlew. ex Rupr. |
|
| https://dr.jacq.org/DR045855 | Diplazium sibiricum (Turcz. ex Kunze) Kurata |
|
| https://dr.jacq.org/DR046165 | Azolla caroliniana Willd. |
|
| Stable identifier | Scientific Name | Media |
| https://gjo.jacq.org/GJO0144325 | Euphrasia gracilis (Fr.) Drejer |
|
| https://gjo.jacq.org/GJO0144318 | Catalpa bignonioides Walter |
|
| https://gjo.jacq.org/GJO0144305 | Plantago psyllium L. |
|
| Stable identifier | Scientific Name | Media |
| https://gzu.jacq.org/GZU000294853 | Caeoma exitiosum Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000294709 | Puccinia alpestris P. Syd & Syd. |
|
| https://gzu.jacq.org/GZU000294722 | Puccinia crepidicola Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000292733 | Uromyces festucae Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000294820 | Aecidium crepidis-incarnatae Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000294819 | Aecidium crepidis-montanae Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000292728 | Uredo ammophilae Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000275229 | Anthericum ramosum L. |
|
| https://gzu.jacq.org/GZU000294814 | Aecidium galasiae Syd. & P. Syd. |
|
| https://gzu.jacq.org/GZU000335965 | Puccinia huteri Syd. & P. Syd. |
|
| Stable identifier | Scientific Name | Media |
| https://je.jacq.org/JE07002998 | Tilletia abscondita Syd. & P. Syd. |
|
| Stable identifier | Scientific Name | Media |
| https://www.botanicalcollections.be/specimen/BR5020099427026 | Microthyrium abietis Mouton |
|
| https://www.botanicalcollections.be/specimen/BR5020099428030 | Microthyrium culmigenum Syd. |
|
| https://www.botanicalcollections.be/specimen/BR5020099430057 | Microthyrium culmigenum Syd. |
|
| https://www.botanicalcollections.be/specimen/BR5020104005218 | Sphaerella callistea Syd. |
|
| https://www.botanicalcollections.be/specimen/BR5020104006222 | Sphaerella callistea Syd. |
|
| https://www.botanicalcollections.be/specimen/BR5020104021379 | Sphaerella circumvaga (Desm.) Sacc. |
|
| https://www.botanicalcollections.be/specimen/BR5020104105246 | Mycosphaerella schoenoprasi Rabenh. |
|
| https://www.botanicalcollections.be/specimen/BR5020104111308 | Mycosphaerella tardiva Syd. |
|
| https://www.botanicalcollections.be/specimen/BR5020104112312 | Mycosphaerella thelypteridis Syd. |
|
| https://www.botanicalcollections.be/specimen/BR5020104113326 | Mycosphaerella topagraphica (Sacc. & Speg.) Munk |
|
| Stable identifier | Scientific Name | Media |
| https://pi.jacq.org/PI014857 | Pulsatilla vernalis (L.) Mill. |
|
| Stable identifier | Scientific Name | Media |
| https://w.jacq.org/W18890025239 | Potamogeton pusillus L. |
|
| https://w.jacq.org/W18890048047 | Potamogeton alpinus Balb. |
|
| https://w.jacq.org/W19630009012 | Potamogeton zizii W. D. J. Koch ex Roth |
|
| https://w.jacq.org/W19630009017 | Potamogeton L. |
|
| https://w.jacq.org/W20150009148 | Gymnocarpium dryopteris (L.) Newman |
|
| https://w.jacq.org/W20080000111 | Aspicilia helladica Motyka |
|
| https://w.jacq.org/W0103192 | Dianthus arenarius L. |
|
| Stable identifier | Scientific Name | Media |
| https://wu.jacq.org/WU0035085 | Chara fragilis f. pseudo-hedwigii Syd. |
|
Publications by Paul Sydow