Myrica lignitum (UNGER) SAPORTA

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 : 97

publication ID

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

persistent identifier

https://treatment.plazi.org/id/6E40384F-9252-CE44-5A27-DEB3AE854D2D

treatment provided by

Felipe

scientific name

Myrica lignitum (UNGER) SAPORTA
status

 

Myrica lignitum (UNGER) SAPORTA

2004 Myrica lignitum (UNGER) SAPORTA ; Kovar-Eder et al., p. 64, pl. 7, figs 1–6, 8, 9.

A d d i t i o n a l m a t e r i a l. GBA 2005/0004/0091, IBUG 509a, 12002, NHMW 1878/6/2348b, 2405, 6444.

D e s c r i p t i o n. Leaves very variable in shape and size, long petiolate; lamina lanceolate, l × w about 45–180 × 4–32 mm, ratio l/w about 3.2–11, base narrow decurrent to cuneate, apex long, narrow acute/acuminate; margin entire to widely simple toothed, rarely double toothed, mostly in the upper half of lamina, teeth widely spaced, blunt to acute, often hook-shaped, sometimes s-shaped, sinuses acute to rounded; midvein strong, straight or bent; secondaries brochidodromous to camptodromous in entire-margined parts of leaves, semi-craspedodromous in the toothed part of the lamina; secondaries at wide angles, regularly spaced, looping along margin or entering teeth; intersecondaries sometimes present; tertiaries and higher order venation reticulate (for foliage variation see also Kovar 1982).

Differing from Dicotylophyllum sp. 6 and Dicotylophyllum sp. M see those taxa.

Differing from Quercus drymeja by the decurrent base, higher length/width ratio of lamina, brochido- to camptodromous secondaries and blunt to acute, partly hookshaped teeth.

Myrica oehningensis (A.BRAUN) HEER Pl. 7, Fig. 9

2004 Myrica oehningensis (A.BRAUN) HEER ; Kovar-Eder et al., p. 65, pl. 7, fig. 7.

A d d i t i o n a l m a t e r i a l. NHMW 1878/6/9348.

D e s c r i p t i o n. Leaves lanceolate, base not preserved; lamina 30 to more than 80 mm long, 8–15 mm wide, apex bluntly acute; margin irregularly dissected ranging from deeply lobed to coarsely crenate-toothed, teeth asymmetrical, rounded, directed apically, sinuses sharp; midvein straight to slightly bent, thin; secondaries semicraspedodromouscamptodromous, at moderate to almost right angles, partly looping partly entering teeth; tertiaries hardly visible.

Differing from Dicotylophyllum sp. 6 see that taxon.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fagales

Family

Myricaceae

Genus

Myrica

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