Mai & Gregor (Feddes Repertorium 93: 422. 1982) selected “Taf. XX, Fig. 4—Museum für Naturkunde Berlin, Nr. 86” with multiple specimens as a ‘lectotype,’ and illustrated a specimen (Mai & Gregor 1982: pl. 20, fig. 4), which was also illustrated in Ludwig (1860: pl. 45, fig. 5c) and in Kirchheimer (1936: pl. 9, fig. 3d). The syntypes in the Museum für Naturkunde in Berlin [A.Braun coll.: MB.Pb.2005/0639 (orig.-no. 86)] consists of eleven seed-remains, but no specimen can be identified as one of the above-mentioned illustrations. [After Winterscheid 2020]
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