Multi-volume work

Fries, E. 1821-1832. Systema Mycologicum, sistens Fungorum Ordines, Genera et Species, huc usque cognitas, quas ad normam methodi naturalis determinavit, disposuit atque descripsit, 1 Jan 1821: 3 vols.. ≡

Volumes

1. Fries, E., 1821a. Volumen I, [1 Jan] 1821: [I]-LVII, Errata (1 p.), [1]-520.
2. Fries, E., 1822-1823. Volumen II: 2 parts.
3. Fries, E., 1829-1832. Volumen III et ultimum: 2 parts.