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Lesqueranthus
Genus Lesqueranthus Ignatiev, S.V. Meyen Rev. Palaeobot. Palynol., 57(3-4): 331. 13 Jan 1989
- Name
- Lesqueranthus
- Rank
- Genus
- Authors (Pub.)
- Ignatiev I. A.
Meyen S. V.
- Publication
- Suchoviella — gen. nov. from the Permian of Angaraland and a review of the systematics of Cordaitanthales [1989/1]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 57
- Issue
- 3-4
- Page number
- 331
- Year
- 1989
- Parent Taxon
- [Order] Cordaitales
- Fossil Status
- fructifications (male)
- Type
- Lesqueranthus leslianus
- Diagnosis
- Primary axis elongated, acuminate towards apex, bilaterally symmetrical, consisting of a flattened endarch-exarch cylinder of primary wood; metaxylem components grading into narrow band of secondary wood; central cylinder surrounded by thin walled parenchyma containing resin canals and subepidermal strands. Bract-axillary complexes arranged in four orthostichies; vascular bundles departing from the narrow ends of a central cylinder. Axillary complex consisting of a short axis on which numerous scaly appendages are arranged helically; terminal scales fertile, with sporangia arranged in one row at distal end. Sporangia elongated, without a specialized dehiscence-mechanism or with a longitudinal dehiscence slit. Pollen large, monosaccate, with a distinct proximal slit; of Fellixipollenites or Sullisaccites type.
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