Mariprasiola stipitata (Suhr ex Jessen) Heesch, Guiry & Rindi, 2025

Heesch, Svenja, Guiry, Michael D. & Rindi, Fabio, 2025, Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera, Cryptogamie, Algologie 20 (2), pp. 19-30 : 24

Mariprasiola stipitata (Suhr ex Jessen) Heesch, Guiry & Rindi , comb. nov.

Prasiola stipitata Suhr ex Jessen , Prasiolae generis algarum monographia: 16, pl. II: figs 11-16 ( Jessen 1848).

LECTOTYPE. — Original illustration ( Jessen 1848: pl. II, fig. 11; “ frondes Slesvicenses ” designated by Burrows 1991: 24).

EPITYPE (here designated for the above lectotype). — B 40 0046812 ( ZE Botanischer Garten und Botanisches Museum, Freie Universität Berlin); Sandwig, Flensburg Fjord, Germany; dried herbarium specimen; 21.X.2024; HRO 905; S. Heesch coll./ det.; GenBank accession no.: PQ605264 (rbc L sequence) .

TYPE LOCALITY. — “ Sandwieck in ducatu Slesvicensi ” [Duchy of Schleswig, now in the state of Schleswig-Holstein, Germany] ( Jessen 1848: 16) ( Sandwig , Flensburg Fjord, Germany).

REMARKS

Karl Friedrich Wilhelm Jessen (1821-1889) was a German botanist born in Schleswig (then a fiefdom of Denmark) whose doctorate at the University of Kiel was a monograph of the genus Prasiola , effectively published at Kiel by the university.

At the time this species was described, the duchy of Slesvic (current German spelling: Schleswig) comprised the southern part of the Jutland peninsula, with Sandwieck (presently spelled Sandwig) situated on the southern coast of Flensburg Fjord in the middle of the duchy. In 1920, the northern part of the duchy was assigned to Denmark, while the southern part, including the southern part of Flensburg Fjord (and Sandwig), was integrated into the German Reich.