Multi-volume work

Fries, E. 1815-1818. Observationes Mycologicæ præcipue ad illustrandam Floram Suecicam. Sumptibus Gerhardi Bonnier, Havniæ: 2 vols.. ≡

Volumes

1. Fries, E., 1815. Pars prima: [i]-vii, [viii, corr.], [1]-230, pls. I-IV.
2. Fries, E., 1818. Pars Secunda, [Apr-May] 1818: [I]-X, [1]-372, expl. ic. (2 pp.), pls. V-VIII.