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Protophyllocladus vachrameevii
Protophyllocladus vachrameevii Nosova, Golovn. in Golovn., Nosova Al'b-Senom. Fl. Zap. Sibiri 101. 2012
- Name
- Protophyllocladus vachrameevii
- Rank
- Species
- Generic Name
- [Genus] Protophyllocladus
- Authors (Name)
- Nosova N. V.
Golovneva L. B.
- Authors (Pub.)
- Golovneva L. B.
Nosova N. V.
- Publication
- Al'b-senomanskaya flora Zapadnoj Sibiri [2012]
- Authors (Book)
- Golovneva L. B.
Nosova N. V.
- Book
- Al'b-senomanskaya flora Zapadnoj Sibiri
- Page number
- 101
- Year
- 2012
- Fossil Status
- foliage
- Stratigraphy
- Cenomanian
- Strat. comment
- Simonovian suite
- Location
- Seversk, borehole Т-29, Tomsk region, Russian Federation
- Paleoregion
- Eurasia (W Siberia)
Data for Holotypus
- Repository
- Tomsk Polytechnical University, Tomsk, Russian Federation
- Repository Number
- Сoll. TPI, spec. S18
- Diagnosis
- Phylloclades amphistomatic. Stomata on the both surfaces assembled in
bands, that sometimes indistinct. Stomata rare, no forming rows, oriented longitudinally or
obliquely, more seldom transverse. Cells of the nonstomatal bands usually elongated, rectangular
or oblique-angled. Cells of the stomatal bands elongated or isodiametric, tetragonal or
polygonal. Anticlinal cell walls straight, cells angles slightly rounded. Most of the cells with
one to four fl attened papillae, sometimes united in cuticular ridge. Stomata monocyclic to incompletely
amphicyclic. Subsidiary cells 4—5(6), two of them polar and 2—3(4) lateral cells.
Inner anticlinal walls of the subsidiary cells often thickened forming a cuticular rim around
the stomatal pit. Guard cells narrow, rectangular or wing-like.
