Quercus casparyi

Name

Quercus casparyi

Rank

Species

Generic Name

[Genus] Quercus

Authors (Pub.)

Sadowski E.-M. Schmidt A. R. Denk T.  

Publication

Staminate inflorescences with in situ pollen from Eocene Baltic amber reveal high diversity in Fagaceae (oak family) [2020/12]

Journal

Willdenowia

Volume

50

Page number

462

Year

2020

Fossil Status

inflorescences (catkins)

Stratigraphy

Priabonian

Location

in amber; Samland peninsula, Prussia = Kaliningrad peninsula, Kaliningrad region, Russian Federation

Paleoregion

Eurasia (Europe)

Data for Holotypus

Repository

Georg-August-Universität Göttingen, Geowissenschaftliches Museum, Göttingen, Germany

Repository Number

GZG.BST.24402

Num

fig. 18

Pub.

Staminate inflorescences with in situ pollen from Eocene Baltic amber reveal high diversity in Fagaceae (oak family) [2020/12]

Diagnosis

Staminate catkin, pendulous with lax rachis. Rachis covered with stellate and bifurcate trichomes. Florets petiolate, singular or arranged in dichasia of 2 or 3 florets. Perianth campanulate to cyathiform, incised to middle forming triangular lobes. Perianth lobes apically acute, margin irregularly incised or dentate with uniseriate and branched uniseriate trichomes, outer surface of lobes almost glabrous, rarely with bifurcate or solitary trichomes. Stamens 7 – 9 per floret, filaments projecting beyond perianth. Anthers elliptic, mucronate, basifixed. Each floret subtended by glabrous bract, short to elongated, linear with acute apex. Pollen monad, tricolpate, scabrate (LM), tectum microrugulate-areolate, microechinate, fossulate (SEM); footlayer thin.