[525] Malpighi 1686.

[526] Tournefort 1694.

[527] Morison 1699.

[528] Micheli 1729.

[529] Micheli, Pls. 52 and 56.

[530] Dillenius 1741.

[531] Linnaeus 1737.

[532] Necker 1771, p. 257.

[533] Scopoli 1772.

[534] Koelreuter 1777.