Mesenea J.Kvaček

Plant Fossil Names Registry Number: PFN000825

Act LSID: urn:lsid:plantfossilnames.org:act:825

Author: J. Kvaček

Rank: genus

Reference for this name: Kvaček, J. (1999): New data and revison of three gymnosperms from the Cenomanian of Bohemia - Sagenopteris variabilis (VELENOVSKÝ) VELENOVSKÝ, Mesenea bohemica (CORDA) comb. n. and Eretmophyllum obtusum (VELENOVSKÝ) comb. n. – Acta Musei Nationalis Pragae, Series B – Historia Naturalis 55(1–2): 15–24. Not public

Page of description: 17

Original diagnosis/description

Tripinnate fronds. Shape of primary pinnae unknown, apical parts ofsecondary pinnae lanceolate, partly overlapping, axis robust. Tertiary pinnae lanceolate, parallel- sided in the basal and medial parts, gradually narrowing to the apex. Pinnule lanceolate or oblong, shortly decurrent, with one or more teeth, attached at an angle of 40°, apex shortly acute . Venation inconspicuous, veins delicate. Midrib of the pinnules not prominent and not reaching the apex, accompanied at the base by smaller separate parallel veins. Lateral veins arising at sharp angles from the midrib, simple or once forked. No pinnae occurring on secondary rachises. Adaxial cuticle with elongate cells, some of them conspicuously strongly cutinized, abaxial cuticle with haplocheilic stomata sunken in pits.

Etymology

From the type locality Mšené [= Mšené-lázně].