Studies on type material from Kützing’s diatom collection VI: The identity of Diatoma liber Suhr (1831) Author Williams, David M. text Phytotaxa 2021 2021-12-17 528 3 215 223 journal article 2891 10.11646/phytotaxa.528.3.6 93a0ef9f-16d5-4e83-9dd1-124f985f2085 1179-3163 5788164 4. ‘ Biddulphia dalmatica’ One BM slide indicates the presence of a species provisionally named ‘ Biddulphia dalmatica’ , an unpublished herbarium name: BM 19396 (‘Kützing 822’, Adriatic, Dalmatica, Croatia , BM001167212: https://data.nhm.ac.uk/dataset/collectionspecimens/resource/05ff2255-c38a-40c9-b657-4ccb55ab2feb/record/8288390). This slide has no coverslip and inspection of the mica for ‘Kützing 822’ reveals only a few fragments, so no SEM work was attempted ( Fig. 20 ).