Carl Bernhard von Trinius

[1] After the death of the duchess in 1824, he remained in St. Petersburg as an imperial physician, and along with a medical practice, he dealt with botanical concerns at the Academy of Sciences.

[2] From 1829 to 1833, he taught classes in natural sciences to the future Russian monarch, Czar Alexander II.

In 1836–1838, he took an extended scientific journey to Berlin, Leipzig, Halle, Vienna, Munich and Dresden, a trip in which he studied various botanical collections.

[2] As a botanist, Trinius was a specialist in grasses and described many species in his career, including Agrostis pallens, Cenchrus agrimonioides and Festuca subulata.

The so-called "Herbarium Trinii" (a collection of roughly 4000-5000 plants) was bequeathed to the botanical museum in St.