| Name | John, Volker |
| Date of birth | 1952 |
| Remarks | [author note: Lichens] [collector note: POLL] |
| ASA Botanist ID | 122370 botanist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4b2273d2-2536-4fbf-93e1-7995c40b5686 |
| Variant name | Volker John |
| Author name | V. John |
| B & P Author Abbrev. | V. John |
| Standard/Label Name | V. John |
| Full Name | John, Volker |
| Geography Collector | Germany |
| Specialty Author | Spermatophytes |
| Citation as Author | Authors of Plant Names. Royal Botanic Gardens, Kew |
| Citation as Author | Index Herbariorum. Part 1: The Herbaria of the World. Eighth Edition. Bronx, NY |
| Citation as Collector | Index Herbariorum, ed. 8 |
| Member of teams/groups | |
| Collector Teams: | V. John & Riha |
| Author Teams: | V. John & Riha |