3601 Caltha L.
- L., Sp. Pl.: 558 (1753).
- Thacla Spach, Hist. Nat. Vég. 7: 295 (1838).
Notes: Deyl and Soják (1970) accepted the genus Thacla. In a phylogenetic study, Schuettpelz and Hoot (2004) found its type species - Caltha natans (= Thacla natans) - to nest together with the northern and southern hemisphere main branches of Caltha. In view of the appreciable variation in Caltha, especially in the southern hemisphere, we do not recognize Thacla.
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Source: J.M.Garg at Wikispecies
