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Anatomical notes on Marsdenia erecta (Apocynaceae) wood: Is it secondarily woody?

100%

Yaman B., Tumen I.

Dendrobiology

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2012

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tom 67

This study deals with the wood of Marsdenia erecta R. Br., which is poorly known from a wood anatomical point of view. M. erecta, a woody-based perennial with numerous herbaceous sprawling stems, is distributed in the south and eastern parts of the Balkan Peninsula (incl. Crete)and Asia Minor to Afghanistan. The study aims at describing the wood anatomy of the species in detail based on IAWA list of microscopic features for hardwood identification, and at determining whether it has paedomorphic wood anatomical features. In M. erecta wood, the typical decreasing age-on-length graphic for vessel elements and exclusively upright and square ray cells provide strong arguments for paedomorphosis and secondary woodiness. However, to make a precise decision, this result based on wood anatomy should be checked with molecular phylogenetic data of the species investigated.

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The identification of wood charcoals from an Early Bronze Age mound (Yenibademli) in western Turkey

84%

Yaman B., Huryilmaz H.

Drewno. Prace Naukowe. Doniesienia. Komunikaty

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2014

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tom 57

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nr 193

Taxonomic identification on the basis of wood anatomy showed that 68.82% of wood charcoals from the Early Bronze Age Site at Yenibademli, on Gökçeada Island (Imbros) in the Northern Aegean region of Turkey belong to the genus Quercus, 15.88% to Pinus, 13.51% to Phillyrea, 0.63% to Arbutus, 0.35% to Ulmus, and 0.23% to the Rosaceae family. The results revealed that the dominant tree genus was oak (Quercus sp.), 67.2% of which was deciduous oak, and the remaining 1.62% was evergreen oak. Quercus and Pinus as the most common two genera in the spectrum of taxa may have a link with oak and pine stands on Gökçeada (Imbros) in the Early Bronze Age. Moreover, the evergreen Quercus (sec. Ilex) and the genus Phillyrea, which was third in the spectrum, suggest that maquis and open vegetation were also present in the Early Bronze Age on Gökçeada.

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Miocene coniferous woods of the Polish Carpathian Foredeep

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Klusek M.

Acta Palaeontologica Polonica

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2014

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tom 59

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nr 3

This paper presents the results of analysis of the Miocene woods collected from three sampling sites in the Polish part of the Carpathian Foredeep. The location in the stratigraphic profile and the state of fossil preservation indicate that the woods were transported by waters flowing from highland or from mountainous regions and then deposited and fossilised in delta areas. Fragments of 16 lignified or silicified woods were collected for anatomical research. The fossil woods were classified as Piceoxylon piceae, Juniperoxylon pachyderma, Cupressinoxylon canadense and Cupressinoxylon polonicum. Disturbance zones observed in Cupressinoxylon polonicum are interpreted as frost rings. Frost rings suggest that despite the documented existence of warm and humid climatic conditions during the Miocene period, the temperatures in mountainous areas could temporarily drop below freezing point.

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Właściwości i możliwości wykorzystania drewna czarnego dębu pochodzącego ze znalezisk krajowych

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Kokocinski W.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1990

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tom 379

Представленные в статье исследования были направлены на рпределение числовых данных об основных химических, физических и механичеcких свойствах древесины черного дуба происходящей из отечественных pаскопок локализованных на речной террасе Вислоки и заливной террае реки Бобр. Проведенные исследования показали, что древесина черного дуба после сушки до воздушно-сухого состояния характеризуется высокими механическими свойствами. Одним из существенных недостатков древеcины ископаемых дубов является ее повышенная склонность к десорбционным трещинам в сравнении с современной древесиной. Можно констатировать, что древесина черных дубов пригодна для использования в деревоперерабатывающей промышленности и в художественном ремесле для производства ряда очень ценных издений.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Dendrobiology

1 Drewno. Prace Naukowe. Doniesienia. Komunikaty

1 Zeszyty Problemowe Postępów Nauk Rolniczych

2 Yaman B.

1 Huryilmaz H.

1 Klusek M.

1 Kokocinski W.

1 Tumen I.

2 2014

1 2012

1 1990

Anatomical notes on Marsdenia erecta (Apocynaceae) wood: Is it secondarily woody?

The identification of wood charcoals from an Early Bronze Age mound (Yenibademli) in western Turkey

Miocene coniferous woods of the Polish Carpathian Foredeep

Właściwości i możliwości wykorzystania drewna czarnego dębu pochodzącego ze znalezisk krajowych