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Archaeomarasmius leggettii
Archaeomarasmius leggettii Hibbet, Grimaldi, Donoghue Amer. J. Bot., 1997, 84(8): 982. 15 Jul 1997
- Name
- Archaeomarasmius leggettii
- Rank
- Species
- Original spelling
- leggetti
- Generic Name
- [Genus] Archaeomarasmius
- Authors (Pub.)
- Hibbet D. S.
Grimaldi D.
Donoghue M. J.
- Publication
- Fossil Mushrooms from Miocene and Cretaceous Ambers and the Evolution of Homobasidiomycetes [1997/7]
- Journal
- American Journal of Botany
- Annee/Jahrgang
- 1997
- Volume
- 84
- Issue
- 8
- Page number
- 982
- Year
- 1997
- Parent Taxon
- [Genus] Archaeomarasmius
- Stratigraphy
- Upper Cretaceous
- Location
- Raritan River, East Brunswick, New Jersey, United States of America
- Paleoregion
- America (North)
Data for Syntypus
- Repository
- American Museum of Natural History, New York, USA
- Diagnosis
- Basidiomata medium-dark brown. Pileus 3.2 mm (AMNH NJ-90Y) to 6.0 mm (AMNH NJ-90Z) diameter, circular, plano-convex, thin-fleshed (, 1 mm), radially sulcate (Figs. 1–3); margin incurved; surface glabrous to minutely textured; veil absent; context thin. Lamellae distant to subdistant (12), without lamellulae, less than 1 mm wide at the widest point, attached to stipe apex; noncollariate, nonanastomosed; edges entire. Stipe 2.2 3 0.5 mm, base broken, insertion central, cylindrical, smooth, exannululate. Basidiospores 6.5–8.3 3 4.0–5.2 mm (mean dimensions 5 7.3 3 4.7 mm, N 5 4 spores and 4 spore casts in amber), broadly ellipsoid to ovoid, smooth or possibly minutely textured, with a distinct hilar appendage
