scholarly journals The flora of Erath County, Texas, U.S.A.

2021 ◽  
Vol 15 (2) ◽  
pp. 715-737
Author(s):  
Allan D. Nelson ◽  
Turner Cotton ◽  
Sarah Brown ◽  
Paige Cowley ◽  
Sara Harsley
Keyword(s):  
Field Work ◽  
Rare Plants ◽  
Giant Reed ◽  
Convolvulus Arvensis ◽  
Tamarix Chinensis ◽  
North Central ◽  
The North ◽  
Threatened And Endangered Species ◽  
Central Texas ◽  
Floristic Data

Knowledge of county floras in Texas is crucial for determining species composition, management, preservation, and restoration across the state. Like most Texas counties, floristic data for Erath County, Texas, is poorly known. The objectives of this investigation were to compile a flora for Erath County, determine the intro-duced, endemic, threatened, and endangered species, as well as make comparisons to the county’s original flora and that of the North Central Texas region. Field work was conducted from September 2003 to December 2009 at 35 sites in Erath County. In addition herbaria were searched to locate specimens from Erath County. A total of 870 species (888 taxa) were identified in 103 families. One hundred forty-four taxa were introduced while 744 taxa were native. Eighteen of the species are Texas endemics. There were two rare plants, Dalea reverchonii and Penstemon guadalupensis, but no threatened or endangered plants were found during the inves-tigation. Four state-listed noxious species were collected during the investigation—Arundo donax (giant reed), Convolvulus arvensis (field bindweed), Tamarix chinensis, and T. gallica (salt-cedars).

COUNTY RECORDS AND MAJOR RANGE EXTENSIONS FOR VASCULAR PLANTS FROM THE WEST CROSS TIMBERS IN ERATH COUNTY, TEXAS

2018 ◽  
Vol 70 (1) ◽  
Author(s):  
T. Cotton ◽  
A. D. Nelson
Keyword(s):  
Vascular Plants ◽  
Native Species ◽  
Cross Timbers ◽  
Endangered Plants ◽  
Convolvulus Arvensis ◽  
North Central ◽  
Threatened And Endangered Species ◽  
Central Texas ◽  
Noxious Weed ◽  
Floristic Data

Abstract Floristic data for Erath County, Texas, is unknown or limited. In this investigation plants were collected from 35 sites in Erath County from September 2003 to April 2008. Plants were identified and categorized based on the following status: introduced, endemic, threatened, and endangered species, as well as county records and major range extensions. One hundred and nineteen new county records were recorded for Erath County. Sixty five species were major range extensions, occurring greater than one county away from the border of Erath County. Twenty-six species were introduced while 93 species were native. Six of the native species were endemic to Texas, with Penstemon guadalupensis classified as endemic to north-central Texas and the Edwards Plateau. There were no rare, threatened, or endangered plants found. Convolvulus arvensis was the only noxious weed found, being state-listed as a noxious species.

Early Medieval Fortifications near Rome

1964 ◽  
Vol 32 (1) ◽  
pp. 89-122
Author(s):  
A. W. Lawrence
Keyword(s):  
Middle Ages ◽  
Local Development ◽  
Central Italy ◽  
Field Work ◽  
Relevant Information ◽  
North Central ◽  
The North ◽  
Key Sites ◽  
Natural Decay ◽  
Work Done

The few scholars who have specialised upon military architecture in Italy have, very naturally, concentrated their attention on the spectacular work of the thirteenth to the sixteenth centuries, chiefly in Apulia and Sicily, to a lesser extent in the North; Central Italy as a whole, has been neglected, and particularly the neighbourhood of Rome. There alone can the unimpressive fortresses of the early middle ages be seen in abundance, most of them untouched except by natural decay, because they were not rebuilt when their obsolescence became recognised, but abandoned—in a large number of instances, so documents imply, during the fourteenth century. This article is an attempt to trace the course of local development down to 1300, as shown mainly at certain key-sites. The argument rests on a basis of combined archaeological and documentary evidence; the former is limited by the amount of field-work done by my predecessors or by myself, the latter I have derived entirely from the regional historians of the past hundred years. Investigation of sites not yet reported, and of documents not yet searched for relevant information, should eventually lead to a more precise chronology than is now feasible.

scholarly journals Fusulinids from the Howe Limestone Member (Red Eagle Limestone, Council Grove Group) in Northeastern Kansas and Their Significance to the North American Carboniferous (Pennsylvanian)-Permian Boundary

2010 ◽  
pp. 1-13
Author(s):  
Gregory P. Wahlman ◽  
Ronald R. West
Keyword(s):  
New Mexico ◽  
North American ◽  
Early Permian ◽  
North Central ◽  
The North ◽  
West Texas ◽  
North Central Texas ◽  
Central Texas ◽  
First Time

Fusulinids from the Howe Limestone Member (upper part of the Red Eagle Limestone, lower part of the Council Grove Group) are described here for the first time. The Howe fauna is particularly significant because it represents the earliest fusulinids known to occur above the new conodont-based Carboniferous (Pennsylvanian)-Permian boundary at the Glenrock Limestone Member-Bennett Shale Member contact (Red Eagle Limestone) in northeastern Kansas. The Howe fusulinid assemblage is composed entirely of species of the genus Leptotriticites. The species L. hughesensis and L. glenensis were originally described from just beneath the new systemic boundary horizon in the Hughes Creek Shale Member and Glenrock Limestone Member, respectively. L. wetherensis is a species from the Stockwether Limestone Member of north-central Texas, which is thought to directly overlie the new systemic boundary in that region. L. gracilitatus is a species reported from below and above the boundary in west Texas and New Mexico. Therefore, the Howe Limestone Member fusulinid fauna is quite transitional in character. The first typical and diagnostic early Permian (Wolfcampian Series) fusulinids in the midcontinent section appear in steps through the stratigraphically higher Neva Limestone Member of the Grenola Limestone (Paraschwagerina kansasensis), and the Cottonwood and Morrill Limestone Members of the overlying Beattie Limestone (Schwagerina jewetti, S. vervillei). This offset of conodont and fusulinid faunal changes should be taken into account in regional and interregional biostratigraphic correlations of the new systemic boundary.

scholarly journals Evaluation of Vitis Species Found in Selected Locations of Texas and New Mexico

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 621a-621
Author(s):  
J. Kim Pittcock ◽  
Richard E. Durham
Keyword(s):  
New Mexico ◽  
Morphological Characteristics ◽  
Current Status ◽  
Vitis Species ◽  
North Central ◽  
North West ◽  
The North ◽  
Rich Diversity ◽  
North Central Texas ◽  
Central Texas

North American Vitis species and hybrids thereof have been the source of rootstocks for V. vinifera for the last century. Collection and evaluation of native Vitis in north-central Texas, western Texas, and New Mexico have been made to determine their current status. Known geographical pockets of grapevines were visited, with specimens taken and identified by comparison to herbarium collections and published descriptions. In locals where more than one species existed, many natural hybrids with varying morphological characteristics have become established. In North Central Texas, two areas were visited. The first was Tarrant, Parker and Wise counties where three grapevine species (V. mustangensis, V. cinerea var. helleri, and V. vulpina) and many hybrids were observed. The second was Wilbarger County where V. acerifolia was found growing in the south while V. ×doaniana was found growing in the north. West Texas was primarily populated with V. acerifolia with the exception of the Silver Falls Canyon area in Crosby County where hybrids of V. acerifolia, V. arizonica and V. riparia were observed. In New Mexico, two areas were visited: San Miquel County (North Central region), where V. acerifolia, V. arizonica, and V. riparia were observed and Eddy County (southern New Mexico) where V. arizonica was observed. A rich diversity of Vitis germplasm appears to remain in these habitats.

GLACIAL FEATURES OF THE NORTH-CENTRAL LAKE SUPERIOR REGION, ONTARIO

1967 ◽  
Vol 4 (3) ◽  
pp. 515-528 ◽  
Author(s):  
S. C. Zoltai
Keyword(s):  
Lake Superior ◽  
Field Work ◽  
Aerial Photographs ◽  
Northern Ontario ◽  
Radiocarbon Dates ◽  
North Central ◽  
The North ◽  
Glacier Ice ◽  
History Of ◽  
Differential Uplift

The surficial glacial features and glacial events of a 13 000 square mile area in northern Ontario are described, based on field work and study of aerial photographs. Ice-laid and glaciolacustrine materials suggest a complex history of stationary ice fronts and glacial lakes during deglaciation. Lakes in the Lake Nipigon and Lake Superior basins inundated large areas. Post-Minong lake stages in the Superior basin intruded far to the north, dammed by ice at the largest moraine, the Nakina. The northern part of this lake was later separated from the post-Minong lake by differential uplift and was named Lake Nakina. After the withdrawal of the ice, Glacial Lake Barlow–Ojibway occupied the northeastern part of the area, and much of it was later overridden by the last glacial readvance. Stratigraphic correlations with radiocarbon dates suggest that the Nakina moraine was built some 9 400 years ago, and that the last glacier ice disappeared before 6 390 years ago.

scholarly journals Further records of smaller mammals from the Kalahari Gemsbok National Park

Koedoe ◽  
1975 ◽  
Vol 18 (1) ◽  
Author(s):  
I.L. Rautenbach ◽  
J.A.J. Nel
Keyword(s):  
South Africa ◽  
National Park ◽  
Field Work ◽  
Central Portion ◽  
North Central ◽  
The North ◽  
First Time

An earlier paper (Rautenbach 1971) summarized documented distributional data on the smaller mammals in the Kalahari Gemsbok National Park, Republic of South Africa. Since then continued field- work in this Park (e.g. Nel and Rautenbach in press) has yielded more information on the distribution of some previously recorded species,whilst other species have been recorded for the first time. Collecting hasbeen concentrated on two localities in the vicinity of Twee Rivieren, two near Nossob Camp, as well as at Dankbaar in the north-central portion of the Park.

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