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Jaguariba
Genus Jaguariba Coiffard, B.A.R. Mohr, Bern.-de-Oliv. Taxon, 62(1): 142. 20 Feb 2013
- Name
- Jaguariba
- Rank
- Genus
- Authors (Pub.)
- Coiffard C.
Mohr B. A. R.
Bernardes-de-Oliveira M.
- Publication
- Jaguariba wiersemana gen. nov. et sp. nov., an Early Cretaceous member of crown group Nymphaeales (Nymphaeaceae) from northern Gondwana [2013/2]
- Journal
- Taxon
- Volume
- 62
- Issue
- 1
- Page number
- 142
- Year
- 2013
- Parent Taxon
- [Family] Nymphaeaceae
- Fossil Status
- leafy twigs
- Type
- Jaguariba wiersemana
- Diagnosis
- Herbaceous plant with leaves arising directly from a rhizome. Leaves alternate, simple, petiolate, peltate (attachment of lamina very eccentric). Base wide obtuse, lobate. Apex obtuse, rounded. Primary venation actinodromous, 9 primary veins radiating from the base. Secondary venation festooned brochidodromous with excostal venation in the outer 1/4 of the lamina. Agrophic veins compound. Spacing of secondary veins increasing toward the base. Angle of secondary veins: one pair of acute basal secondaries. Course of secondary veins mostly zig-zag, due to deflection at origin of tertiaries, curved upward. Intersecondaries weak. Tertiary veins mixed opposite/alternate near mid-vein and random reticulate near margin. Tertiary veins convex and sinuous. Angle of tertiary veins to primary veins obtuse. Angle variability of tertiary veins inconsistent. Quaternary veins regular polygonal reticulate.
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