| Strain No. | VKM F-2989 |
| Scientific name of the strain | Leucoagaricus nympharum (Kalchbrenner 1873) Bon 1977 |
| Synonym | Macrolepiota puellaris (Fries 1863) M.M.Moser 1967 |
| Other culture collection No. | IBK F-255 |
| History | Bukhalo A.S. M.G. Kholodny Institute of Botany of the National Academy of Sciences of Ukraine, Kiev, Ukraine, IBK F-255 |
| Received as | Macrolepiota puellaris (Fries 1863) M.M.Moser 1967 |
| Source of isolation | fruitbody |
| Location | Altai State Nature Reserve |
| Geographics | Republic of Altai, Yailu |
| Country | Russia |
| Medium | 9 |
| Incubation temp. (C) | 25 |
| Storage methods | C-5, S-4, S-5 |
| Pathogenicity group (SanPin 3.3686-21, 28.01.2021, Russia) | no |
| References | 4225 |