| VKM No. | Y-2531 Type |
| Scientific name of the strain | Nadsonia fulvescens (Nadson et Konokotina 1911) Sydow 1912 var. elongata (Konokotina 1913) Golubev et Smith 1989 |
| Synonym | Nadsonia elongata Konokotina 1913 Type strain |
| History | CBS 2594 |
| Received as | Nadsonia elongata |
| Source of isolation | slime flux of birch |
| Geographics | Smolensk |
| Country | Russia |
| Medium | 9 |
| Incubation temp. (C) | 20 |
| Storage methods | F-3, S-4 |
| Risk group | no |
| References | 6020, 6857, 7266 |
| VKM No. | Y-2531 Type |
| Scientific name of the strain | Nadsonia fulvescens (Nadson et Konokotina 1911) Sydow 1912 var. elongata (Konokotina 1913) Golubev et Smith 1989 |
| Synonym | Nadsonia elongata Konokotina 1913 Type strain |
| History | CBS 2594 |
| Received as | Nadsonia elongata |
| Source of isolation | slime flux of birch |
| Geographics | Smolensk |
| Country | Russia |
| Medium | 9 |
| Incubation temp. (C) | 20 |
| Storage methods | F-3, S-4 |
| Risk group | no |
| References | 6020, 6857, 7266 |