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Table of Contents
Revision der Orchis cordigera Fries und Orchis Angustifolia Rchb. / Reprinted from Arch. Naturk. Liv. -Ehst Kurlands, ser. 2, Biol. Naturk. 1893. 10: 257-359.
Diagnoses orchidearum novarum in calidariis horti imperialis botanici petropolitani cultarum. / Repr. Acta Horti Petropolitani. v. 17(1), 1898 (16 p., 3 pl.)
Dactylorchids, orchis subgeneris, monographiae prodromus. / Repr. Acta Horti Petropolitani. v. 17(1), 1898 (56 p.)
Zwei neue bigenere Orchideen-Hybride. / Repr. Acta Horti Petropolitani / v. 17(1), 1899 (19 p., 2 pl.)
Zur Orientierung der Orchis-Bastarte und zur Polymorphie der Dactylorchis-Arten. / Repr. Acta Horti Petropolitani. v. 17(2), 1899 (65 p.)
Die homo und polyphyletischen Formenkreise der Dactylorchis-Arten. / Repr. Acta Horti Petropolitani. v. 17(2), 1899 (79 p., 2 pl.)
Zur geographischen Verbreitung und Entstehung der Dactylorchis-Arten. / Repr. Acta Horti Petropolitani. v. 17(2), 1899 (104 p., col. map).
Edition Notes
Pts. 2-3 published in Petrograd, 1898; pts. 4-7 published in St. Petersburg, 1899.
Pt.1 Theses (doctoral)--Kaiserlichen Universitat zu Jurjew, 1893.