scholarly journals Synopsis of Nekemias Raf., a segregate genus from Ampelopsis Michx. (Vitaceae) disjunct between eastern/southeastern Asia and eastern North America, with ten new combinations

PhytoKeys ◽  
2014 ◽  
Vol 42 ◽  
pp. 11-19 ◽  
Author(s):  
Jun Wen ◽  
John Boggan ◽  
Ze-Long Nie
Keyword(s):  
North America ◽  
Eastern North America ◽  
New Combinations

scholarly journals Xerocomellus (Boletaceae) in western North America

2020 ◽  
Vol 6 (1) ◽  
pp. 265-288
Author(s):  
J.L. Frank ◽  
N. Siegel ◽  
C.F. Schwarz ◽  
B. Araki ◽  
E.C. Vellinga
Keyword(s):  
North America ◽  
Morphological Variability ◽  
Morphological Data ◽  
Eastern North America ◽  
New Combinations ◽  
Western North America ◽  
Key To Species ◽  
Dichotomous Key ◽  
Species Complexes ◽  
Three New Species

Understanding diversity in the genus Xerocomellus in western North America has been obscured by morphological variability, widespread use of species epithets typified by specimens from Europe and eastern North America, misunderstood phylogenetic relationships, and species complexes. We collected extensively and used genetic and morphological data to establish the occurrence of ten Xerocomellus species in western North America. We generated ITS sequences from five type collections and from vouchered representative collections to clarify our understanding of existing species concepts. We describe three new species (Xerocomellus atropurpureus, X. diffractus, and X. salicicola) and propose two new combinations (X. amylosporus and X. mendocinensis), transfer Boletus coccyginus to Hortiboletus, and provide a dichotomous key to species of Xerocomellus in western North America.

The genus Fuscidea ( Fuscideaceae, lichenized Ascomycota) in North America

2008 ◽  
Vol 40 (04) ◽  
pp. 295-328 ◽  
Author(s):  
Alan M. FRYDAY
Keyword(s):  
New Species ◽  
North America ◽  
Distinct Species ◽  
New Combination ◽  
Eastern North America ◽  
New Combinations ◽  
Two New Species ◽  
Made In

Abstract:The species of the genus Fuscidea occurring in North America are revised. Two new species, Fuscidea appalachensis Fryday and F. texana Fryday, are described from eastern North America and southern Texas, respectively. Three new combinations are also made in Fuscidea: Lecidea aleutica Degel. is shown to be a distinct species and not a synonym of Fuscidea lowensis (H. Magn.) R. Anderson & Hertel as previously suggested and is here recognized as F. aleutica (Degel.) Fryday; non-sorediate, apotheciate specimens from eastern North America previously referred to F. recensa (Stirt.) Hertel, V. Wirth & Vězda are recognized as Fuscidea recensa var. arcuatula (Arnold) Fryday; and Fuscidea scrupulosa (Eckf.) Fryday is shown to be the correct name for Fuscidea subreagens (H. Magn.) Oberholl. & V. Wirth. Fuscidea subfilamentosa (Zahlbr.) Brako is shown to be a member of the Lecidea hypnorum group and the new combination Lecidea subfilamentosa (Zahlbr.) Fryday is made, and Lecidea gyrodes H. Magn., described from Tennessee, is shown to be a synonym of F. recensa var. arcuatula. Fuscidea cyathoides (Ach.) V. Wirth & Vězda, F. kochiana (Hepp) V. Wirth & Vězda and F. lightfootii (Sm.) Coppins & P. James are considered not to have been correctly reported from North America.

A taxonomic revision of Crataegus (Rosaceae) in Ontario

1980 ◽  
Vol 58 (15) ◽  
pp. 1621-1699 ◽  
Author(s):  
J. B. Phipps ◽  
M. Muniyamma
Keyword(s):  
North America ◽  
Taxonomic Revision ◽  
Diagnostic Value ◽  
Eastern North America ◽  
New Combinations ◽  
Key To Species ◽  
Line Drawings ◽  
Hybrid Swarms ◽  
Variation Patterns ◽  
Range Of Variation

This taxonomic revision of Ontario Crataegus (Rosaceae) indicates the presence of 39 good species in 14 series in the province. This appears to represent about one-third of the taxa of North American Crataegus. Additionally, six "little-known" species are briefly described. The reasons for taxonomic difficulty in Crataegus in eastern North America are fully discussed and attention is drawn to the care with which specimens must be collected and the characteristics known to be of diagnostic value. A key to and descriptions of the series are provided. A key to species is followed by descriptions of each. Line drawings of 25 species at anthesis are provided to indicate the range of variation in Ontario Crataegus and to underline discriminating features. This is the only pictorial record of this detail for Ontario Crataegus. Thirty-two colour figures emphasize the differences among fruiting Crataegus, which have hitherto caused much confusion to collectors. Thirty-five species are mapped for their Ontario distribution and exemplar specimens are cited for all taxa. Seven new combinations have been made. Our species concepts are not consistent because of the range of variation patterns found in the genus, from ordinary sexual outbreeders through polytypic forms with various cytotypes to situations where hybrid swarms may be suspected. The taxonomic situation is known to be complicated by apomixis and polyploidy.

The Identification and Study of Indian Shell Middens in Eastern North America: 1643–1861

1986 ◽  
Vol 6 (3) ◽  
pp. 227-243 ◽  
Author(s):  
Andrew L. Christenson
Keyword(s):  
Nineteenth Century ◽  
Civil War ◽  
North America ◽  
East Coast ◽  
Eastern North America ◽  
Shell Midden ◽  
Shell Middens ◽  
Work Done

Although the interest in shell middens in North America is often traced to reports of the discoveries in Danish kjoekkenmoeddings in the mid-nineteenth century, extensive shell midden studies were already occurring on the East Coast by that time. This article reviews selected examples of this early work done by geologists and naturalists, which served as a foundation for shell midden studies by archaeologists after the Civil War.

HAVE WE SEEN THE LARGEST EARTHQUAKES IN EASTERN NORTH AMERICA?

2018 ◽  
Author(s):  
James S. Neely ◽  
◽  
Seth Stein ◽  
Miguel Merino ◽  
John Adams
Keyword(s):  
North America ◽  
Eastern North America
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