Cryptocaryoxylon istanbulense

Name

Cryptocaryoxylon istanbulense

Rank

Species

Original spelling

istanbulensis

Generic Name

[Genus] Cryptocaryoxylon

Authors (Pub.)

Akkemik Ü. Üner B.  

Publication

A new fossil woody flora of the Late Oligocene-Early Miocene of northwest İstanbul with a new species [2025/3]

Journal

Turkish Journal of Botany

Volume

34

Issue

3, 4

Page number

411

Year

2025

Fossil Status

stems (wood)

Stratigraphy

Chattian

Strat. comment

Kıraç Member of the İstanbul Formation / Late Oligocene–Early Miocene

Location

Kabakça (Çatalca), west of İstanbul Province, Türkiye

Paleoregion

Eurasia (Europe)

Data for Holotypus

Repository

ISTO Herbarium, Faculty of Forestry, Istanbul University-Cerrahpaşa, Istanbul, Turkey

Repository Number

ISTO-FW-00267

Num

4 a-i

Descr.

holotype not specified among illustrations

Pub.

A new fossil woody flora of the Late Oligocene-Early Miocene of northwest İstanbul with a new species [2025/3]

Diagnosis

Vessel porosity diffuses; tree-ring boundaries distinct due to the presence of 1–4 rows of marginal type axial parenchyma cells. Vessel arrangement generally solitary and 2–3 vessels in radial multiples. Vessels almost oval and circular, tangential and radial diameters of vessel elements 100–200 µm, and vessels per square mm are 5–20. Types of axial parenchyma sparse paratracheal, diffuse, and in marginal bands with 1–4 rows of parenchyma cells. The rays uni- to triseriate, heterocellular. Oil and mucilage cells in the margins and inside the rays, and are found together with the axial parenchyma. Shape of oil and mucilage cells generally similar to ray cells, small as ray cells or slightly wider. Septate fibers present. Pits on vessel walls 7–10 µm and alternate. Prismatic crystals within ray cells. Perforation plates simple. Vessel elements clearly storied.