Ulmus plurinervia UNGER

Kovar-Eder, Johanna, Kvaček, Zlatko, Teodoridis, Vasilis, Mazouch, Petr & Collinson, Margaret E., 2022, Floristic, Vegetation And Climate Assessment Of The Early / Middle Miocene Parschlug Flora Indicates A Distinctly Seasonal Climate, Fossil Imprint 78 (1), pp. 80-144 : 100

publication ID

https://doi.org/ 10.37520/fi.2022.005

persistent identifier

https://treatment.plazi.org/id/6E40384F-9257-CE41-58C4-DE29AE914863

treatment provided by

Felipe

scientific name

Ulmus plurinervia UNGER
status

 

Ulmus plurinervia UNGER

2004 Ulmus plurinervia UNGER ; Kovar-Eder et al., p. 66, pl. 6, figs 18–22.

D e s c r i p t i o n. Leaves long-petiolate, petiole slender, often slightly curved; lamina ovate to slender elliptic, asymmetrical, l × w about 38–50 × 15–20 mm, ratio l/w about 2.3–3, base asymmetrically convex on the broader side, rather straight on the smaller side, apex (bluntly) acute; margin simple serrate, teeth dense, directed towards apex, sinus sharp, apex blunt; midvein straight or slightly bent; secondary venation craspedodromous, secondaries regularly spaced, dense, rarely forked, at moderate angles, steeper on the narrower side, mostly corresponding in number to number of teeth (more than 12) except when single secondaries are forked; tertiaries finely and densely polygonate reticulate, hardly distinguishable from higher order veins.

Differing from Cedrelospermum ulmifolium and Ternstroemites pereger see those taxa.

Differing from Zelkova zelkovifolia by long petiole, higher number of smaller and more dense teeth and thus secondaries, and by distinctly asymmetrical base which is convex on the broader side but straight on the narrower side.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Rosales

Family

Ulmaceae

Genus

Ulmus

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Rosales

Family

Ulmaceae

Genus

Ulmus

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