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Plumafolium
Genus Plumafolium Krassilov in Krassilov, Lewy, Nevo, Silant. Late Cret. (Turon.) Fl. S. Negev, Israel 158. Apr 2005
- Name
- Plumafolium
- Rank
- Genus
- Authors (Name)
- Krassilov V. A.
- Authors (Pub.)
- Krassilov V. A.
Lewy Z.
Nevo E.
Silantieva N.
- Publication
- Late Cretaceous (Turonian) Flora of Southern Negev, Israel [2005/4]
- Authors (Book)
- Krassilov V. A.
Lewy Z.
Nevo E.
Silantieva N.
- Book
- Late Cretaceous (Turonian) Flora of Southern Negev, Israel
- Page number
- 158
- Year
- 2005
- Parent Taxon
- [Class] Liliopsida
- Fossil Status
- leaves
- Type
- Plumafolium bipartitum
- Diagnosis
- Leaf large bipipartite long-petiolate. Petiole broad,
flat, divided into two broadly arcuate arms extending as one-sided costae
of bilobed lamina. Leaf lobes flabellate, fibrous, with irregularly lacerate
margin. Venation of dense subparallel primary veins arising from the
costae. Secondary veins typically three between each pair of primary
veins, about twice weaker than the latter. Cross-veins dense, percurrent. Epidermal cells sinuous papillate. Stomata scattered, with feebly cutinized
guard cells. Trichomes thick-walled, with rounded basal cells.
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