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Kamatheca
Genus Kamatheca Doweld Taxon, 68, (10.1002/tax.12118): 8. 8 Nov 2019
- Name
- Kamatheca
- Rank
- Genus
- Authors (Pub.)
- Doweld A. B.
- Publication
- On the nomenclature of the fossil-genera Acitheca, Bifariusotheca, Polymorphopteris and Strephopteris (fossil Pteridophyta, Marattiopsida) [2019/11]
- Journal
- Taxon
- Annee/Jahrgang
- 68
- Issue
- 10.1002/tax.12118
- Page number
- 8
- Year
- 2019
- Parent Taxon
- [Class] Marattiopsida
- Fossil Status
- foliage (fertile)
- Type
- Kamatheca gigantea
- Diagnosis
- Fronds large, pinnate, pinnae rachis wide
(up to 5 mm), straight, finely longitudinally striated. Pinnules
attached at 80–85 to the rachis, free and distant, elongate,
more than 32 mm long and 12 mm wide, margins undulate
or weakly lobed (sinuses about 1 mm deep); pinnule midrib
rather thick, straight, arising almost perpendicular to the
rachis, attenuating distally, not reaching the apex; lateral veins
inconspicuous. Microsporangia cover all the abaxial pinnules,
joined in microsynangia arranged in rows on either side of the
midrib. Microsynangia large, 1.0–1.5 mm in diam., consisting
of 4–5 sporangia that are radially disposed around the receptacle.
Spores unknown.
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