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Azolla gracilis
Azolla gracilis V.P. Nikitin in V.P. Nikitin, Hval' Paleobot., 2: 61. 2011
- Name
- Azolla gracilis
- Rank
- Species
- Generic Name
- [Genus] Azolla
- Authors (Name)
- Nikitin V. P.
- Authors (Pub.)
- Nikitin V. P.
Hval' A. V.
- Publication
- Reproduktivnye struktury Azolla v kajnozoe Zapadnoj Sibiri [2011]
- Journal
- Paleobotanika
- Volume
- 2
- Page number
- 61
- Year
- 2011
- Fossil Status
- sporae dispersae (megaspores)
- Stratigraphy
- Oligocene
- Strat. comment
- Novomikhailovian suite
- Location
- Novokazanka village, Chebulinsky district, kemerovo region, Russian Federation
- Paleoregion
- Eurasia (W Siberia)
Data for Holotypus
- Repository
- Komarov Botanical Institute, Russian Academy of Sciences, St.-Petersburg, Russian Federation
- Repository Number
- 200/Н4321
- Diagnosis
- Megaspore complexes small, 0,32—0,40 mm long. Supraspore approximately as high as the infraspore or more often longer. Basic fl oats 9. Lower floats 1,5 times smaller than the upper ones or of comparable size. Cap partially covering the supraspore. Columella present. Collar relatively wide, narrow, or almost indistinct. Suprafi losum moderately developed. Infraspore surface fi nely granulate, dotted with large vermiform grains protruding from the surface and overlying the subjacent ones. Infrafilosum absent.
