EPPO Global Database

• EPPO Code: LEPGPO
• Preferred name: Leptographium ponderosum
• Authority: (T.C. Harrington & F.W. Cobb) D. Choi, M.-S. Kim & T.C. Harrington

This code includes information on L. ponderosum in the sense of Choi et al. (2023). Choi et al. (2023) elevated Leptographium ponderosum and L. pseudotsugae (previously L. wageneri var. ponderosum and L. wageneri var. pseudotsugae) to species, while L. wageneri var. wageneri was maintained as Leptographium wageneri. 

The taxonomic status of Grosmannia wageneri against the new Leptographium species in Choi et al. (2023) needs to be clarified (2025-03). As of 2025-03, information on Leptographium wageneri before Choi et al. 2023 (i.e. covering the three previous var.) is provided under the code for Grosmannia wageneri. Grosmannia wageneri (Ophiostoma wageneri, Ceratocystis wageneri) was previously considered as the teleomorph of Leptographium wageneri in EPPO Global Database. 

------- Choi D, Harrington TC, Shaw DC, Stewart JE, Klopfenstein NB, Kroese DR, Kim MS (2023) Phylogenetic analyses allow species-level recognition of Leptographium wageneri varieties that cause black stain root disease of conifers in western North America. Frontiers in Plant Science 14, 1286157.