Nicolaus Thomas Host

Nicolaus Thomas Host (December 7, 1758 in Fiume, now Rijeka – January 13, 1834 in Vienna) was a Croatian botanist and the personal physician of Holy Roman Emperor Francis II.

His botanical works include ''Synopsis plantarum in Austria'' and the four-volume ''Austriacorum Icones et descriptions graminum''; he was also the first director of the botanical garden at the Belvedere palace.

The genus ''Hosta'' is named for him.

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