Euryale europaea
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| Euryale europaea Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Euryale |
| Species: | †E. europaea |
| Binomial name | |
| †Euryale europaea | |
Euryale europaea is a fossil species of Euryale from the Pleistocene of Chekalin, Kaluga region, Russia,[1][2] Belgium,[3] and Bulgaria.[4]
The dark brown, ovoid, 5.6 mm long, and 5.65 mm wide, operculate seeds have a prominent raphe. The 0.27–0.32 mm thick testa is smooth. The elliptic operculum is 2.14 mm long, and 1.25 mm wide.[1]
Taxonomy
It was published by Carl Albert Weber in April 1907.[2] In three separate instances it has been suggested to treat it as a member of a separate genus Pseudoeuryale P.I. Dorof.: First Pseudoeuryale europaea (C.A. Weber) P.I. Dorof. was published by Pavel Ivanovich Dorofeev in October 1972,[5] followed by Pseudoeuryale europaea (C.A. Weber) P.I. Dorof. ex Mai. published by Dieter Hans Mai based on previous work by Pavel Ivanovich Dorofeev in September 1973,[6] and lastly Pseudoeuryale europaea (C.A. Weber) P.I. Dorof. published by Pavel Ivanovich Dorofeev in March 1975.[7] The same species name was used by Clement Reid and Eleanor Mary Reid for Euryale europaea C. Reid & E. Reid published in September 1907[8][9] and as the name was already taken, this is a nomen illegitimum.[8] Its correct name is Euryale limburgensis C. Reid & E. Reid.[9]
The neotype was designated by Alexander Borissovitch Doweld in 2022 and it is held in the collection of the Komarov Botanical Institute, Russian Academy of Sciences, St. Petersburg, Russia.[2][10]