Virginianthus calycanthoides

Name

Virginianthus calycanthoides

Rank

Species

Generic Name

[Genus] Virginianthus

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

Fossil Status

flowers

Stratigraphy

Albian

Strat. comment

Patapsco Formation

Location

Puddledock locality, Tarmac Lone Star Industriesand and gravel pit, 9 km southwest of Hopewell, Virginia, USA

Paleoregion

America (North)

Data for Holotypus

Repository

Field Museum, Chicago, USA

Repository Number

PP43703

Num

Figs. 1-8

Pub.

Virginianthus calycanthoides gen. et sp. nov. – a calycanthaceous flower from the Potomac Group (Early Cretaceous) of eastern North America [1994/11]

Diagnosis

Hypanthium deep, cupshaped 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.