Alnus rhenana (P.WESSEL et C.O.WEBER) WINTERSCHEID et KVAČEK,

Kvaček, Zlatko, Teodoridis, Vasilis & Radoň, Miroslav, 2018, Review Of The Late Oligocene Flora Of Matrý Near Sebuzín (České Středohoří Mts., The Czech Republic), Fossil Imprint 74 (3 - 4), pp. 292-316: 298

publication ID

http://doi.org/ 10.2478/if-2018-0018

persistent identifier

http://treatment.plazi.org/id/BE0E87A3-897E-2656-8630-13F7EFE34887

treatment provided by

Felipe

scientific name

Alnus rhenana (P.WESSEL et C.O.WEBER) WINTERSCHEID et KVAČEK
status

 

Alnus rhenana (P.WESSEL et C.O.WEBER) WINTERSCHEID et KVAČEK 

Pl. 7, Figs 7–9

1856 Corylus rhenana P.WESSEL et C.O.WEBER  , p. 134, pl. 22, fig. 5.

2002 Alnus cf. rostaniana SAPORTA  ; Radoň, p. 170, pl. 1, fig. 11.

2009 Alnus rostaniana SAPORTA  ; Akhmetiev et al., p. 117, pl. 12, fig. 11.

2014 Alnus rhenana (P.WESSEL et C.O.WEBER) WINTERSCHEID et KVAČEK  , p. 22, pl. 4, figs 1–5, pl. 11, figs 4–6.

M a t e r i a l s t u d i e d. Leaf impressions PA 1166.1, 1172.4, 1175.2, 1343, 1372, 1375, 1380, 1403, 1404, 1414, 1423.

D e s c r i p t i o n. The leaves are ovate to obovate, over 150 mm long, 50 mm wide, incompletely preserved, acute at apex, rounded to shallow cordate at base, finely widely serrate on margin.

D i s c u s s i o n. The alder foliage recovered at Matrý is for the first time compared with Alnus rhenana  , which is typically long petiolate, obovate and varying in shape from broadly obovate to ovate ( Winterscheid and Kvaček 2014). A fossil species based on the leaf impression of Sorbus palaeoaria ETTINGSH. ( Ettingshausen 1869)  from Žichov also belongs to Alnus rhenana  . It differs in the shape of the blade from the narrow elliptic alder leaves assigned to Alnus gaudinii (HEER) ERW.KNOBLOCH et KVAČEK  from Seifhennersdorf ( Walther and Kvaček 2007) and Kundratice ( Kvaček and Walther 1998). The previously used fossil taxon Alnus rostaniana SAPORTA ( Akhmetiev et al. 2009)  falls into the synonymy of A. rhenana  together with another alder foliage from the late Oligocene site of Manosque, France ( Saporta 1891).

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fagales

Family

Betulaceae

Genus

Alnus