[515] Bitter 1899.

[516] Swartz 1788.

[517] Gmelin 1791.

[518] Woodward 1797.

[519] Fries 1825.

[520] Nylander 1855.

[521] Mattirolo 1881.

[522] Johow 1884.

[523] Wainio 1890.

[524] Möller 1893.