[205] Wainio 1890, 2, p. 29.

[206] Reinke 1872, p. 108.

[207] Reinke 1873¹.

[208] Reinke 1873², p. 98.

[209] Frank 1876.

[210] de Bary 1879.

[211] Bornet 1873.

[212] Hedlund 1892.

[213] Peirce 1899.

[214] Hue 1915.