A New (Hovenia) and an old (Chadronoxylon) Fossil Wood from the Late Eocene Florissant Formation, Colorado, U.S.A.

IAWA Journal ◽  
2012 ◽  
Vol 33 (3) ◽  
pp. 309-318 ◽  
Author(s):  
Elisabeth A. Wheeler ◽  
Herbert W. Meyer
Keyword(s):  
North America ◽  
East Asia ◽  
Late Eocene ◽  
Fossil Wood ◽  
Original Diagnosis ◽  
First Report ◽  
National Monument ◽  
The Creation ◽  
Florissant Formation

A fossil wood with features similar to those of the Oligocene Hovenia palaeodulcis Suzuki (Rhamnaceae) from Japan is described from the late Eocene Florissant Fossil Beds National Monument, Colorado, U.S.A. This is the first report of fossil wood of this Asian genus in North America and is further documentation of Tertiary exchange between East Asia and North America. The affinities of Chadronoxylon florissantensis, the most common angiosperm wood at Florissant, are reevaluated; its combination of features suggests relationships with two families in the Malpighiales, the Salicaceae and Phyllanthaceae. Chadronoxylon is compared with Paraphyllanthoxylon Bailey. The Eocene P. hainanensis from China has notable differences from the original diagnosis of Paraphyllanthoxylon, but shares features with Chadronoxylon warranting transfer of P. hainanensis to Chadronoxylon and the creation of Chadronoxylon hainanensis (Feng, Yi, Jen) Wheeler & Meyer, comb. nov.

A new fossil wood of Koelreuteria (Sapindaceae) from the Pliocene of China and remarks on the phytogeographic history of Koelreuteria

IAWA Journal ◽  
2012 ◽  
Vol 33 (3) ◽  
pp. 301-307
Author(s):  
Ye-Ming Cheng ◽  
Ya-Fang Yin ◽  
R.C. Mehrotra ◽  
Cheng-Sen Li
Keyword(s):  
North America ◽  
East Asia ◽  
Fossil Wood ◽  
First Report ◽  
History Of

Koelreuteria yuanmouensis sp. nov. (Sapindaceae) is described from the Pliocene fluvio-lacustrine rocks of Hutiaotan Earth Forest, Yuanmou Basin, Yunnan, China. This is the first report of fossil Koelreuteria wood from Asia. The history of the genus is reviewed. Fruits and leaves of the genus have been reported from the Paleocene onwards in Asia, North America, and Europe, with the genus becoming restricted to East Asia during the Neogene.

scholarly journals EVIDENCE FOR GONDWANAN ORIGINS FOR SASSAFRAS (LAURACEAE)? LATE CRETACEOUS FOSSIL WOOD OF ANTARCTICA

IAWA Journal ◽  
2000 ◽  
Vol 21 (4) ◽  
pp. 463-475 ◽  
Author(s):  
Imogen Poole ◽  
Hans G. Richter ◽  
Jane E. Francis
Keyword(s):  
New Species ◽  
North America ◽  
East Asia ◽  
Late Cretaceous ◽  
Fossil Wood ◽  
New Taxon ◽  
Parent Plant ◽  
The Past ◽  
Vessel Elements ◽  
Perforation Plates

Sassafrasoxylon gottwaldii sp. nov. is a new taxon for fossil wood with a suite of features diagnostic of Sassafras Nees & Eberm. of the Lauraceae. The fossil wood described is from Late Cretaceous (Santonian- Maastrichtian) sediments of the northern Antarctica Peninsula region. This new species of Sassafrasoxylon Brezinová et Süss resembles the species of extant Sassafras in being distinctly ring-porous, having vessel elements with simple perforation plates and very occasional scalariform plates with relatively few bars in the narrowest latewood vessels, alternate intervascular pitting, marginal (initial) parenchyma bands and paratracheal vasicentric parenchyma in the latewood, multiseriate rays and oil and /or mucilage cells. The fossils were found as isolated pieces of wood and therefore it is not certain whether the parent plant was Sassafras-like in all characters. Consequently the fossils have been placed in an organ genus rather than in extant Sassafras. This is the oldest record of an organ with features closest to extant Sassafras and may suggest that Sassafras first appeared in Gondwana and later radiated into the Northern Hemisphere. The distribution of extant Sassafras in North America and East Asia may represent a relict of a geographically more widespread taxon in the past.

scholarly journals First Report on the Occurrence of Benzoxazinoids in an Invasive Weed Plant, Woolly Cupgrass (Eriochloa villosa (Thunb./Kunth)

2021 ◽  
Author(s):  
Peter Makleit ◽  
Szilvia Veres ◽  
Arnold Szilágyi
Keyword(s):  
North America ◽  
East Asia ◽  
Invasive Weed ◽  
First Report ◽  
Weed Plant ◽  
Woolly Cupgrass ◽  
Poaceae Family ◽  
Eriochloa Villosa

Woolly cupgrass (Eriochloa villosa /Thunb./ Kunth) is a common weed in East Asia and North America. This weed plant spreading quickly in Europa. There are several reasons for the successfulness, especially its germination properties. As other Panicoideae species contain benzoxazinoids it was supposed that woolly cupgrass also contains these chemicals. For this reason the benzoxazinoid content of plants at the stage of flowering was investigated. As it was supposed, woolly cupgrass contain benzoxazinoids, which is a novel occurrence of these chemicals in Poaceae family.

First report of Angiostrongylus vasorum in coyotes in mainland North America

2018 ◽  
Vol 183 (24) ◽  
pp. 747-747 ◽  
Author(s):  
Jenna Marie Priest ◽  
Donald T Stewart ◽  
Michael Boudreau ◽  
Jason Power ◽  
Dave Shutler
Keyword(s):  
North America ◽  
Angiostrongylus Vasorum ◽  
First Report

I See Myself through My Avatar: Evidence from East Asia and North America for Acculturated Effects on Virtual Representation Preference

2016 ◽  
Vol 3 (1-2) ◽  
pp. 79-96 ◽  
Author(s):  
Gunwoo Yoon ◽  
Patrick T. Vargas
Keyword(s):  
North America ◽  
East Asia ◽  
Cultural Psychology ◽  
Self Concept ◽  
Future Research ◽  
East Asians ◽  
Two Cultures ◽  
North Americans ◽  
The Two Cultures ◽  
Quasi Experiment

In the present research we argue that avatars, as identity containers, can mirror people’s self-concepts. Research in cultural psychology suggests that East Asians tend to be more tolerant of contradictions and that they more easily adjust their self-concepts in accordance with changing contexts compared to North Americans (see Heine 2001). We therefore assume that preferred forms of avatars among East Asians and North Americans are different because of this self-concept variability across cultures. We conducted a quasi-experiment to explore how people in the two cultures differently evaluate two forms of avatars, human-like and cartoon-like avatars, in terms of likeability and preference. We found that East Asians rated cartoon-like avatars more favourably than North Americans. Moreover, compared to North Americans, East Asians preferred cartoon-like avatars to human-like avatars for their hypothetical avatars to play games. We conclude by discussing implications for future research.

First Report of Powdery Mildew of Lycium chinense (Chinese Matrimony Vine) Caused by Arthrocladiella mougeotii in the Pacific Northwest

2004 ◽  
Vol 5 (1) ◽  
pp. 16
Author(s):  
Dean A. Glawe
Keyword(s):  
North America ◽  
Powdery Mildew ◽  
Medicinal Plant ◽  
Pacific Northwest ◽  
Morphological Features ◽  
Lycium Chinense ◽  
First Report ◽  
Landscape Plant ◽  
The Pacific ◽  
Plant Grown

Chinese matrimony-vine (Lycium chinense Mill.) is a traditional medicinal plant grown in China and used as a perennial landscape plant in North America. This report documents the presence of powdery mildew on L. chinense in the Pacific Northwest and describes and illustrates morphological features of the causal agent. It appears to be the first report of a powdery mildew caused by Arthrocladiella in the Pacific Northwest. Accepted for publication 10 November 2004. Published 8 December 2004.

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