Virginianthus calycanthoides E.M.Friis, H.Eklund, K.R.Pedersen et P.R.Crane

Plant Fossil Names Registry Number: PFN002040

Act LSID: urn:lsid:plantfossilnames.org:act:2040

Authors: E. M. Friis, H. Eklund, K. R. Pedersen & P. R. Crane

Rank: species

Genus: Virginianthus E.M.Friis, H.Eklund, K.R.Pedersen et P.R.Crane

Reference: Friis, E. M., Eklund, H., Pedersen, K. R. & Crane, P. R. (1994): Virginianthus calycanthoides gen. et sp. nov. – A calycanthaceous flower from the Potomac Group (Early Cretaceous) of eastern North America. – International Journal of Plant Sciences 155(6): 772–785., link

Page of description: 773

Illustrations or figures: figs 1–8

Name is type for

Types

Original diagnosis/description

Hypanthium deep, cup-shaped with six to eight distinct longitudinal ridges and two bractlike structures fused to the basal part. Perianth composed of about 12 tepals in at least two series on the rim of the floral cup. Androecium consisting of approximately 30–40 densely crowded stamens in three or four series arranged inside the perianth on the rim of the floral cup; innermost parts of androecium staminodial; apical connective expansion triangular, bent inward over the anther. Gynoecium composed of numerous carpels borne in several series on the inner surface of the hypanthium. Indumentum of densely spaced, simple, and stiff hairs on outer surface of the floral cup and abaxial surface of tepals. Secretory cells numerous on hypanthial cup, adaxial surfaces of tepals, connective tissue of stamens, staminodes, and carpels.

Etymology

From Calycanthus (Calycanthaceae); Calycanthus-like.

Stratigraphy

Cretaceous, Lower Cretaceous, Albian
Patapsco Formation, Potomac Group (basal part of palynological Subzone IIB, Early to Middle Albian)

Locality

United States
Puddledock locality, Tarmac Lone Star Industries sand and gravel pit, 9 km southwest of Hopewell, Virginia