Caroline Rosenberg (1810 - 1902)
From 1838 to her death, she lived at Hofmansgave. Here, CR found his field of action. Encouraged by Hofman Bang, she began studying botany after taking a detour over the Latin in order to familiarize herself with systematic botanical works. She worked especially with algae and mosses, inspired by a former house teacher at Hofmansgave, botanist and pastor Chr. Lyngbye, who in 1819 had published her main work on algae in the Danish flora Tentamen Hydrophytologiae Danicae.
Both in the area around Hofmansgave and on his travels, not least in Norway, CR collected during his long life considerable amounts of seaweed and thus found the first ever red algae Helminthocladia purpurea by Skagen.
CR's list of algae genera, found in Denmark, was included in the Handbook in the Danish Flora and is her only overall scientific contribution to the botanical literature. Her efforts in the field of phycology, the doctrine of algae, have, however, been of importance in contemporary and retrospective, and contributions from her hand in the form of herbarium specimens have been recorded in several places, among other things. in Flora Danica. Also her studies of moss species were quite extensive, and not least her collection from Norway is valuable. She gave it to a Norwegian botanist who baptized a new mosart Bryum Rosenbergi in recognition of her work.