Utricularia bremii Heer

Astuti, Giovanni & Peruzzi, Lorenzo, 2018, Notes on the typification of the names Utricularia bremii Heer and U. intermedia Dreves & Hayne (Lentibulariaceae), Phytotaxa 350 (2), pp. 172-176 : 172

Utricularia bremii Heer in Koelliker (1839: 142)

Type (lectotype, first-step designated by Meister 1900: 23, second-step designated here):— SWITZERLAND. Katzensee , 26 June 1836, Bremi s.n. ( ZT!; Fig. 1 ) .

Note on typification:—In the protologue (Koelliker 1839), Heer quotes a collection made by Bremi in Katzensee (“In torfmooren selten. Am Katzensee, Bremi” [Rare in peat bogs. At Katzen Lake, Bremi]). Hence, O. von Heer did provide neither a collection date nor an indication that can unequivocally refer to a single specimen considerable as the holotype, as regulated by Art. 9.1 of the ICN ( McNeill et al. 2012, see also McNeill 2014). Consequently, any specimen collected by Bremii before 1839 in Katzensee could be considered as original material. Meister (1900), in a study concerning the European Utricularia species, reported a list of studied herbarium specimens, among which we can find, listed as the first for U. bremii , the following indication: “ Katzensee: Bremi 26 Juni 1836, Originalexemplare ” [Katzen Lake: Bremi June 26 th 1836, original specimens]. It should be noted that the word “ exemplare ” is plural, thus indicating a gathering of more specimens. In accordance with Art. 9.22 of the ICN ( McNeill et al. 2012), only for lectotypifications after 1 January 1990 the specification of the herbarium where the type is conserved is needed. Accordingly, that of Meister (1900) clearly represents a first-step lectotypification (Art. 9.17, Ex. 12 of the ICN, McNeill et al. 2012). Starting from this consideration, we tried to locate the collection(s) indicated by Meister (1900), and later also quoted by Taylor (1989), in the herbaria were Heer’s material is conserved ( Z, B, GZU, K, HAL, and LE; herbarium acronyms follow Thiers 2018) and in other Swiss herbaria ( ZT, G, NEU, CHUR, LUG, NMLU, NHMF and HKGL). We only found a single specimen of U. bremii , in Zürich ( ZT! see Fig. 1 ), matching the indication given by Meister (1900). This specimen is designated here as lectotype in a second-step lectotypification (Art. 9.17, Ex. 12 of the ICN, McNeill et al. 2012). It fully agrees with the current circumscription of the species (see e.g., Astuti & Peruzzi 2018; Bartolucci et al. 2018).

Figures

FIGURE 1. Herbarium sheet of Utricularia bremii conserved in ZT, including the specimen selected as second-step lectotype.