| Name | Jaap, Otto | 
| Date of birth | 1864  | 
| Date of death | 1922  | 
| Remarks |  [author note: Herbarium and types: HBG; additional material at B, E, H] [collector note: Czechoslovakia? PRM] | 
| ASA Botanist ID | 102045 botanist | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/614c4204-2eac-4e94-85a1-a8f1f4836d9a | 
| Variant name | Otto Jaap | 
| Author name | Jaap | 
| B & P Author Abbrev. | Jaap | 
| Standard/Label Name | O. Jaap | 
| Full Name | Jaap, Otto | 
| Geography Author | Germany | 
| Geography Collector | Czech Republic | 
| Specialty Author | Bryophytes | 
| Specialty Author | Fungi and Lichens | 
| Specialty Collector | Fungi | 
| Citation as Author |  Authors of Plant Names. Royal Botanic Gardens, Kew | 
| Citation as Author |  Taxonomic Literature. Second Edition. Utrecht | 
| Citation as Collector | Index Herbariorum - Collectors I-L  | 
| Author in  | Fungi Select. Exsicc. (Jaap & Brick) | 
| Author in  | Myxomyc. Exsicc. | 
| Holdings | Search for specimens collected by O. Jaap | 
| Collections in | [no date] (3),  1903 (1),  1904 (1),  1905 (1),  1907 (1),  1914 (1),  1916 (1) |