Quercus multipilosa

Name

Quercus multipilosa

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

467

Year

2020

Fossil Status

inflorescences (male)

Stratigraphy

Priabonian

Location

in amber; Samland peninsula, Kaliningrad region, Russian Federation

Paleoregion

Eurasia (Europe)

Data for Holotypus

Repository

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

Repository Number

GZG.BST.24414

Num

Fig. 25, 26

Pub.

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

Diagnosis

Pendulous staminate inflorescence, rachis densely covered by stellate trichomes. Florets singular and stalked. Perianth campanulate to cyathiform, incised to middle, forming triangular lobes. Lobes with acute apex, margin of lobes irregularly dentate, with trichomes of four different types sparsely distributed along margin: bifurcate, uniseriate, branched uniseriate and solitary. Outer surface of lobes glabrous. Each floret with sparse central trichome tuft composed of solitary trichomes. Stamens 9 – 11 per floret, filaments short and in most cases entirely covered by perianth. Anthers large, elliptic to narrowly elliptic with notched apex, basifixed. Each floret subtended by glabrous bract, linear, slender with acute apex. Pollen microverrucate, perforate, large, with thin footlayer.