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Gothania lesliana
Gothania lesliana Daghlian, T.N. Taylor Amer. J. Bot., 66(3): 291. 28 Mar 1979
- Name
- Gothania lesliana
- Rank
- Species
- Generic Name
- [Genus] Gothania
- Authors (Pub.)
- Daghlian C. P.
Taylor T. N.
- Publication
- A new structurally preserved Pennsylvanian Cordaitean pollen organ [1979/3]
- Journal
- American Journal of Botany
- Volume
- 66
- Issue
- 3
- Page number
- 291
- Year
- 1979
- Fossil Status
- fructifications (male)
- Stratigraphy
- Lower Pennsylvanian
- Strat. comment
- Magoffin Member of the Breathitt Formation
- Location
- Lewis Creek, Kentucky, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- Field Museum, Chicago, USA
- Repository Number
- Coal Ball 1663
- Diagnosis
- Primary pollen cone bearing axis bilaterally symmetrical 14. 0 mm in the primary plane and 7. 0 mm in the secondary plane. Stele ellipsoid in outline and constructed of up to 15 protoxylem strands, xylem endarch-mesarch with annularpitted tracheids; bract traces arise from open, narrow end of stele; cone traces originate after the departure of bract trace from free ends of stele cone trace formed by fusion of a pair of bundles from the open ends of the stele flanking bract trace distally cone trace medullated; each pollen con~ constructed of up to 25 broad, helically arranged scales, scales broadly attached .at the base, tapering distally; scales with adaxial stomata aligned in rows between subepidermal bands of fibers, abaxial fibers continuous; scales constructed of mesophyll parenchyma and abundant mucilage cells; four elongate pollen sacs (3.0 mm long) borne on distally positioned cone scales each pollen sac vascularized by repeated dichot~my of scale trace, sporangial wall one ~ell layer thick with radial thic~enings and lack~ng distinct dehiscence mechamsms; pollen grams large (138 μ,m x 52 μ,m) and monosaccate, proximal surface suture configuration variable (monolete- trilete), nexine homogeneous-lamellate, sexine endoreticulations conspicuous, saccus approximately 2 times corpus diameter.
Nomenclatural synonyms (basionyms)
Species
