[176] Schwendener 1860, p. 125.

[177] de Bary 1866, p. 291.

[178] Nylander 1870.

[179] Elfving 1903 and 1913.

[180] [See p. 133.]

[181] Minks 1878 and 1879.

[182] Müller 1878 and 1884.

[183] Zukal 1884.

[184] Darbishire 1895¹.

[185] Schwendener 1860, etc.