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Virginianthus
Genus Virginianthus Friis, Eklund, K.R. Pedersen, P.R. Crane Int. J. Pl. Sci., 155(6): 773. Nov 1994
- Name
- Virginianthus
- Rank
- Genus
- Authors (Pub.)
- Friis E. M.
Eklund H.
Pedersen K. R.
Crane P. R.
- Publication
- Virginianthus calycanthoides gen. et sp. nov. – a calycanthaceous flower from the Potomac Group (Early Cretaceous) of eastern North America [1994/11]
- Journal
- International Journal of Plant Sciences
- Volume
- 155
- Issue
- 6
- Page number
- 773
- Year
- 1994
- Parent Taxon
- [Subclass] Magnoliidae
- Fossil Status
- flowers
- Type
- Virginianthus calycanthoides
- Diagnosis
- Flower small, bisexual, actinomorphic, and multipartite. Hypanthium cup-shaped. Perianth and androecium composed of numerous parts arranged in densely crowded series on the rim of the floral cup. Stamens not clearly differentiated into anther and filament. Anthers dithecate and tetrasporangiate, extrorse, dehiscing by four laterally hinged valves; pollen
sacs linear and parallel; sterile tissue abundant, surrounding the sporangiapically, laterally, basally, and adaxially; inner series of androecium
staminodial. Pollen monocolpate. Gynoecium composed of numerous free carpels borne on the inner surface of the hypanthium.
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