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Allicospermum papillosum
Allicospermum papillosum Nosova in Nosova, Hval' Rev. Palaeobot. Palynol., 247: 30. 10 Aug 2017
- Name
- Allicospermum papillosum
- Rank
- Species
- Generic Name
- [Genus] Allicospermum
- Authors (Name)
- Nosova N. V.
- Authors (Pub.)
- Nosova N. V.
Hval' A. V.
- Publication
- New findings of the seeds Allicospermum Harris (gymnosperms) from the Middle Jurassic of Angren, Uzbekistan [2017/8]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 247
- Page number
- 30
- Year
- 2017
- Fossil Status
- seeds
- Stratigraphy
- Middle Jurassic
- Strat. comment
- Angren Formation
- Location
- Angren, Tashkent viloyat, Uzbekistan
- Paleoregion
- Eurasia (Central Asia)
Data for Holotypus
- Repository
- Komarov Botanical Institute, Russian Academy of Sciences, St.-Petersburg, Russian Federation
- Repository Number
- spec. 822/6
- Diagnosis
- Seeds with mucronate apex. Cuticle of outer epidermis
thick. Cells of outer epidermis generally mostly short and tetragonal,
rarely polygonal, often with solid papillae; near the seed apex cells elongated,
each with hollow hair-like papilla; anticlinal cell walls straight,
rarely slightly undulate. Stomata numerous, randomly scattered, oriented
mostly along the seed axis, some of subsidiary cells with solid papillae.
Resin bodies large and long. Nucellar cells elongated, tetragonal,
with acute corners. Megaspore membrane comprising a patterned
layer and a foot layer. Patterned layer composed of bacula arranged
obliquely to the foot layer, branching and interconnecting to form a
network.
