(which translated means 'Custodian of the Royal Natural History Collections'). He held this position until 1835/36. 'Kaiserlichen Hof-Naturalienkabinett' is now the Naturhistorisches Museum Wien in Vienna. Whilst being a curator, he organised the specimens of various plant genera including Theophrasta, Sophora, Hermannia and Psoralea. These were collected by Nikolaus Joseph von Jacquin. Between 1811-1818, he published 'Archiv der Gewächskunde' (Archives of the Greenhouse Customer). This two-volume work included 250 engravings of plants. The copper plates included domestic and foreign plants in any order. It was not a popular piece of work as it had many copies of current illustrations. Between 1811-1816, he published "Observationes Botanicae" (in 4 Fascimila). Another piece of work with very low sales. Between 1812-1818, he published 'Arch Gewächsk' (Archiv der Gewächskunde) Wein. Between 1812-1822, he published 'Auswahl vorzüglich schöner, seltener, berühmter, und sonst sehr merkwürdiger Gartenpflanzen, in getreuen Abbildungen nebst Erläuterungen über ihre Charakteristik, Verwandschaft, Klassification, Geschichte, Verwendung, Cultur, und ästhetischen Ansichten' (translation: Selection of Exquisitely Beautiful, Rare, Famous and Otherwise Very Strange Garden Plants, in faithful pictures together with explanations of their characteristics, relationships/ kinship, classification, history, use, culture and aesthetic properties). It included 219 engraved plates, 218 of them hand-coloured. A set sold in 1999 for £9,775 In 1812, all known species in the genus Hosta were grouped together by Trattinnick, and named in honour of his fellow Austrian Nicholas Thomas Host, who was a botanist and physician at the court of Emperor Frances I of Austria. It was first thought that the name was invalid, as a Verbena (now known as Cornutia) had already been named "Hosta", but Linnaeus then re-classified the plant as a 'Verbena'. In 1905, the International Botanical Congress voted that the name 'Hosta' could be used. Between 1816-1822 he published two volumes of the 'Flora der Oesterreichischen Kaiserthumes' (Flora of the Austrian Empire), but the complete work was never finished. The illustrations were taken from his archive. The text is partially filled with poetic verse as well as botanical observations. In 1816, Trattinick published and described Schmidtia subtilis in 'Flora des Osterreichischen Kaiserthumes' Volume 1 Issue 12, t.451. Specimens of this taxon were sent to Trattinick by Count Berchtold. This was later classified as a synonym of Coleanthus subtilis. In 1819, he published 'Oesterreichischer Blumenkranz', (Flower Wreaths of Austria) which was described as “not botany in verse, but pure botanical poetry, representing the work of the important Austrian botanist;