Rutström, Carol Birger (1758–1826) – Demonstrator in Botany at old Åbo Akademi

Rutström was in order the fourth Demonstrator in Botany (1794–1798) at Åbo Akademi. His main duty was to instruct medical students on the subject of medicinal plants. In 1794 he supervised a thesis on Swedish cryptogams. It presents 20 species, including descriptions of one new fungal species, Peziza ucreolata (later homonym to P. ucreolata Vahl) and three lichens. Peziza urceolata Rutstr. is considered to be Lasiobelonium corticale (Pers.) Raitv. The new lichens were Lichen anceps, L. demissus and L. cumatilis¸ today Bacidia rosella (Pers.) De Not.var. anceps (Rutstr.) Ach., Psora demissa (Rutstr.) Stein. and Lobaria amplissima (Scop.) Forssell, respectively. In 1798 he moved back to Sweden