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Eobowenia
Genus Eobowenia Coiro, Pott BMC Evol. Biol., 17(97): 3. 7 Apr 2017
- Name
- Eobowenia
- Rank
- Genus
- Authors (Pub.)
- Coiro M.
Pott C.
- Publication
- Eobowenia gen. nov. from the Early Cretaceous of Patagonia: indication for an early divergence of Bowenia? [2017/4]
- Journal
- BMC Evolutionary Biology
- Volume
- 17
- Issue
- 97
- Page number
- 3
- Year
- 2017
- Parent Taxon
- [Family] Boweniaceae
- Fossil Status
- foliage
- Type
- Eobowenia incrassata
- Diagnosis
- Leaves pinnate. Midrib delicate. Leaflets subopposite, insertion more
acute towards the apex, oblong. Leaflet base broad. Leaflets
with serrate margin. Veins parallel to the margin, converging
at the base of the leaflet. Leaflets hypostomatic. Stomata
with guard cell poles raised with respect to the aperture.
Guard cells at same level with the epidermis, arranged longitudinally
with respect to the leaflet axis. Stomatal complex
monocyclic. Subsidiary cells with differentiated cuticle. Polar
subsidiary cells sometimes differentiated from the lateral
ones. Substomatal cells with thickened secondary cell walls.
Epidermal cells elongated parallel to the leaflet axis, with
darker-staining short cell distributed in rows of short cells.
Anticlinal cell walls slightly wavy or concave.
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