The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2024

IDNAME urn:idName:ifpni.org:species:C1211844-133B-4522-AD1E-A77EDEE6E436 species
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Salix hausruckensis

Salix hausruckensis Kovar-Eder in Kovar-Eder, Wójcicki Acta Palaeobot., 2001, 41(2): 229. 20 Feb 2002
Name
Salix hausruckensis
Rank
Species
Generic Name
[Genus] Salix
Authors (Name)
Kovar-Eder J. B.  
Authors (Pub.)
Kovar-Eder J. B. Wójcicki J. J.  
Publication
A Late Miocene (Pannonian) flora from Hinterschlagen, Hausruck lignite area, Upper Austria [2002/2]
Journal
Acta Palaeobotanica
Annee/Jahrgang
2001
Volume
41
Issue
2
Page number
229
Year
2002
Fossil Status
leaves
Stratigraphy
Tortonian
Strat. comment
Pannonian
Location
Tagebau Heissler near Hinterschlagen, Hausruck lignite area, Upper Austria, Austria
Paleoregion
Eurasia (Europe)
Data for Holotypus
Repository
Naturhistorisches Museum Wien, Geologisch-Paläontologische Abteilung, Vienna, Austria
Repository Number
1999B0001/9
Diagnosis
Lamina wide elliptic, up to at least 150 mm long and 66 mm wide, relation length/width 1.7–2.5; petiole up to 47 mm long, often curved and basally broadened, adaxially clustered glands on the distal part of the petiole; leaf base sometimes somewhat cordate and slightly asymmetric, obtuse, rounded; apex acute, acuminate, sometimes attenuate; leaf margin regularly, simply serrate from the base up to the middle or twothirds of the lamina with glands adherent to the margin, apically often but not always entire; in small leaves only the base is serrate, then the margin is entire; teeth tiny, regularly spaced with rounded or acute bases and rounded apices; venation brochidodromous, distance between secondaries in the middle of the leaves 7–16 mm, in small leaves 3–4 mm, angles of origin at the base of big leaves between 70–90°, towards the apex about 40–50°, in smaller leaves generally 40–50°, secondaries forming wide curves, at the margin they form loops; loops of higher venation orders send fine veins towards the bases of the teeth from where these run along the apical sides of the teeth towards the teeth apices; tertiary veins forked percurrent, oblique; fourth order venation distinctive, polygonally reticulate, occasionally (forked-)percurrent between the tertiaries; fifth order veins forming polygonals, areoles with several branched veinlets; adaxial cuticle thick, cell-outlines sometimes formed of thick and straight-running anticlines, in other leaves the anticlines are hardly traceable on the thick cuticle; cell outlines commonly 4–6- sided, more rarely polygonal; trichome bases absent; size of non-modified epidermal cells (7)12–24 μm, average 16–18 μm; faint epicuticular striation upon veins and occasionally in intercostal areas; abaxial cuticle thick, nonmodified epidermal cells with thick anticlines, occasionally not equally developed, running straight, size of non-modified epidermal cells (7)11–28 μm, average 12–16(21) μm; stomatal complexes brachyparacytic to cyclocytic (especially the giant stomatal complexes); stomata oval, stomatal length 10(12)-30 μm, average 19–21 μm, width (7)12–22 μm, average 13–16 μm; stomatal aperture spindle-shaped, almost reaching the poles, outer cuticular ledges strongly thickened, aperture length (6)8–22 (25) μm, average 13–19 μm; epidermal walls of the guard cells sometimes well developed, sometimes hardly recognizable; giant stomata present, length >30 μm, aperture length 28–30 μm, sometimes radial striation present laterally; commonly the stomata show double contours; abundance of trichome bases variable: in some leaves almost restricted to the veins, in others also scattered in the intercostal areas; simple trichome pores, 4–15 μm in diameter, average 6–10 μm, surrounded by small, thickly cutinized cells, trichome bases raised volcano-like above the surface; faint striation upon main veins.

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