Palmoxylon chamaeropsoides

Name

Palmoxylon chamaeropsoides

Rank

Species

Generic Name

[Genus] Palmoxylon

Authors (Name)

Iamandei S. Iamandei E.  

Authors (Pub.)

Velitzelos D. Iamandei S. Iamandei E. Velitzelos E.  

Publication

Palaeoxylotomical studies in the Cenozoic petrified forests of Greece. Part one – Palms [2019]

Journal

Acta Palaeobotanica

Volume

59

Issue

2

Page number

300, 305

Year

2019

Fossil Status

stems (wood)

Stratigraphy

Burdigalian

Location

Kastoria area, the continental part of Greece

Paleoregion

Eurasia (Europe)

Data for Holotypus

Repository

Athens University, Athens, Greece

Repository Number

specimen 497

Num

3: 1-9

Pub.

Palaeoxylotomical studies in the Cenozoic petrified forests of Greece. Part one – Palms [2019]

Data for Paratypus

Repository

Athens University, Athens, Greece

Repository Number

specimen 401

Num

4: 1-9

Pub.

Palaeoxylotomical studies in the Cenozoic petrified forests of Greece. Part one – Palms [2019]

Diagnosis

Fibrovascular bundles of collateral type, loosely distributed in central zone, more congested in subdermal and dermal zone, with large sclerechyma caps of Reniformia type, more voluminous in central zone, sometimes fusing; f/v ratio 1–1.3 or more; bundle density 125–225/cm2 in dermal zone, 78–95/cm2 in subdermal zone, 34–36/cm2 in the central zone. Phloem undivided in dermal zone, to apparently divided in central zone. Metaxylem as 1–3 large vessels which in longitudinal view show helical thickenings with vertical connections, scalariform pitting and scalariform perforations. Protoxylem as small round vessels with annular thickenings. Interfascicular parenchyma as large elongated cells of tabular type around sclerenchyma and of radial type in vascular zone of fibrovascular bundles; also interfascicularly the parenchyma cells appear more or less oriented or in star-like arrangement, sometimes containing starch grains, tannin or mucilage. Round fibrous bundles present, small or of different sizes in cross section, 60–100 μm, longitudinally with numerous spherical spinulose stegmata in long rows.