[1095] Elenkin and Woronichin 1908.

[1096] Jaczewski 1904.

[1097] Steiner 1919.

[1098] Müller 1892.

[1099] Nylander 1867.

[1100] Leighton 1869.

[1101] Nylander 1900.

[1102] Nylander 1891.

[1103] Schimper 1869, p. 145.

[1104] Lindsay 1879.