[705] Wallroth 1825.

[706] Schaerer 1823-1842.

[707] Flotow 1850.

[708] Itzigsohn 1850.

[709] Tulasne 1851.

[710] Tulasne 1852.

[711] Lindsay 1859 and 1872.

[712] Forssell 1885.

[713] Nienburg 1908.

[714] Möller 1887.