Glandulocalyx upatoiensis

Name

Glandulocalyx upatoiensis

Rank

Species

Generic Name

[Genus] Glandulocalyx

Authors (Pub.)

Schönenberger J. von Balthazar M. Takahashi M. Crane P. R. Herendeen P. S.  

Publication

Glandulocalyx upatoiensis, a fossil flower of Ericales (Actinidiaceae/Clethraceae) from the Late Cretaceous (Santonian) of Georgia, USA [2012/4]

Journal

Annals of Botany

Volume

109

Issue

5

Page number

923

Year

2012

Fossil Status

flowers

Stratigraphy

Santonian

Strat. comment

Lower part of the Eutaw Formation

Location

32824′44′′N and 84850’01’’W on the south bank of Upatoi Creek on the Fort Benning Military Reservation, Chattahoochee County, Georgia, USA

Paleoregion

America (North)

Data for Holotypus

Repository

Field Museum, Chicago, USA

Repository Number

PP55153

Num

Figs 1 A–C and 2A, D

Pub.

Glandulocalyx upatoiensis, a fossil flower of Ericales (Actinidiaceae/Clethraceae) from the Late Cretaceous (Santonian) of Georgia, USA [2012/4]

Diagnosis

As for genus with the following additions: floral buds close to anthesis (with corolla protruding) approx. 2 mm in diameter and 5 mm in length (specimens PP55157 and PP55165). Sepals broadly triangular and acuminate; multicellular trichomes present on the entire abaxial surface of sepals except for the sepal tips, and also on the distal third of the adaxial surface; sepal tips with stomata; simple, unicellular trichomes present on adaxial sepal surface. Petal shape (most probably) broadly ovate with a rounded apex; simple, unicellular trichomes present on abaxial petal surface. Stamen filaments inserted individually on floral base; anthers sagittate and with short connective tip; joint between anther and filament narrow and connective tissue between thecae weakly developed. Pollen with smooth surface. Ovary conical close to anthesis; styles slender, weakly capitate distally, with stylar canal; ovary glabrous with numerous stomata around the base.