[675] Meyer 1825.

[676] Holle 1849.

[677] Tulasne 1852.

[678] De Bary 1866-1867.

[679] Haberlandt 1887.

[680] Zopf 1905.

[681] Massalongo 1852.

[682] Koerber 1855.

[683] Wainio 1. 1890, p. 113.

[684] Harper 1899.