scholarly journals Sea Lavender (Heliotropium gnaphalodes L.): Identification and Uses

EDIS ◽  
2018 ◽  
Vol 2018 (4) ◽  
Author(s):  
Stephen H. Brown ◽  
Marc S. Frank ◽  
Andrew K. Koeser
Keyword(s):  
Species Identification ◽  
Atlantic Coast ◽  
South Florida ◽  
Native Plant ◽  
Sea Lavender

Sea lavender is a native plant found naturally along the Atlantic coast of central and south Florida. This 7-page document discusses this species’ identification and uses. Written by Stephen H. Brown, Marc S. Frank, and Andrew K. Koeser and published by the UF/IFAS Environmental Horticulture Department, August 2018. http://edis.ifas.ufl.edu/ep563

scholarly journals Vascular plants, coastal dunes between Pehuen-có and Monte Hermoso, Buenos Aires, Argentina

Check List ◽  
2008 ◽  
Vol 4 (1) ◽  
pp. 37 ◽  
Author(s):  
Cintia E. Celsi ◽  
Ana L. Monserrat
Keyword(s):  
Vascular Plants ◽  
Buenos Aires ◽  
Atlantic Coast ◽  
Coastal Dunes ◽  
Native Plant ◽  
Species List ◽  
Native Plant Species ◽  
Dune Systems ◽  
Line Transects ◽  
Rich Flora

Buenos Aires coastal dune systems undergo an accelerated process of human induced modification, causing loss of native plant species and changes in species composition, cover and/or abundance. We present a species list of vascular plants recorded in a region of dune landscape between Pehuen-có and Monte Hermoso localities, southern Buenos Aires Atlantic coast. The area comprises fixed and active dune systems, frontal dunes, sandy marine beach and an abrasion platform. Vegetation sampling was performed using line-transects perpendicular to the coastline. Vascular plants were identified and species cover percentage was estimated in 10 m x 10 m plots. 31 families and 75 species were registered. Asteraceae, Poaceae, and Fabaceae were best represented. Ten exotic taxa were found. Vegetation structure is associated to geomorphologic heterogeneity. The site preserves rich flora with high number of native vascular plants. The presence of Neosparton ephedroides was verified. Conservation guidelines are necessary to protect the local biodiversity.

A 5700-year-old beach-ridge set at Cape Canaveral, Florida, and its implication for Holocene sea-level history in the southeastern USA

The Holocene ◽  
2021 ◽  
pp. 095968362110499
Author(s):  
Kathleen Rodrigues ◽  
Frank W Stapor ◽  
William J Rink ◽  
James S Dunbar ◽  
Glen Doran
Keyword(s):  
Sea Level ◽  
Atlantic Coast ◽  
High Water ◽  
South Florida ◽  
Beach Ridge ◽  
Beach Ridges ◽  
The Past ◽  
History Of ◽  
Depositional Age ◽  
Holocene Sea Level

The Cape Canaveral Peninsula is the largest Holocene coastal sand deposit composed of beach ridges on the Atlantic coast of Florida. It is composed of 16 beach-ridge sets that are separated by erosional surfaces. Despite its prominence as a Holocene coastal depocenter, there are a limited amount of chronological data constraining the timing of its formation. In this study, we apply optically stimulated luminescence (OSL) dating on sand-sized quartz and radiocarbon dating on individual marine shells to develop a refined chronology of the Cape Canaveral beach-ridge plain with particular focus on constraining the depositional age of the northwesterly-most, and geographically oldest, beach-ridge set on the peninsula. We obtain an average OSL age of 5680 ± 240 years ( n = 4) for the initiation of coastal deposition at Cape Canaveral. The new ages, and the organization of beach ridges into 16 distinct sets indicates that the Cape Canaveral beach-ridge plain experienced an ~5700-year history of alternating deposition and erosion, with 75% of present-day Cape Canaveral (Beach-ridge Sets 5–16) deposited over the past 2000 years and Beach-ridge Sets 8–16 comprising 50% of the area over the past 1000 years. Because the minimum swale elevations of the ~5700-year Beach-ridge Set 1, and those of all the younger beach-ridge sets, are within several decimeters of present-day mean higher high water, we hypothesize that all the beach ridges present at Cape Canaveral could have been deposited at or within decimeters of present-day sea level. There is no evidence for Holocene “highstand” events over the past 5700 years in the published sea level curves from northeast and south Florida, which are based on subsurface estuarine foraminifera/leaf litter and mangrove peat data, respectively. This dichotomy illustrates the need to integrate both subaerial and subsurface data to produce a more realistic Holocene sea-level curve for the southeastern United States.

Hydrodynamic and geologic influence of event-dependent depth of closure along the South Florida Atlantic Coast

2008 ◽  
Vol 252 (3-4) ◽  
pp. 156-165 ◽  
Author(s):  
William Robertson ◽  
Keqi Zhang ◽  
Charles W. Finkl ◽  
Dean Whitman
Keyword(s):  
Atlantic Coast ◽  
South Florida ◽  
The South

scholarly journals Salt Marsh Claviceps purpurea in Native and Invaded Spartina Marshes in Northern California

Plant Disease ◽  
2007 ◽  
Vol 91 (4) ◽  
pp. 380-386 ◽  
Author(s):  
A. J. Fisher ◽  
J. M. DiTomaso ◽  
T. R. Gordon ◽  
B. J. Aegerter ◽  
D. R. Ayres
Keyword(s):  
United States ◽  
Salt Marsh ◽  
San Francisco ◽  
Atlantic Coast ◽  
The United States ◽  
San Francisco Estuary ◽  
Claviceps Purpurea ◽  
Northern California ◽  
Native Plant ◽  
Worldwide Distribution

The fungal pathogen Claviceps purpurea (subgroup G3) has a worldwide distribution on salt marsh Spartina spp. In Northern California (United States), native Spartina foliosa sustains high rates of infection by G3 C. purpurea in marshes north of the San Francisco Estuary. Invasive populations of S. alterniflora and S. alterniflora × foliosa hybrids are virtually disease free in the same estuary, although S. alterniflora is host to G3 C. purpurea in its native range (Atlantic Coast of the United States). Greenhouse inoculation experiments showed no differences in susceptibility among S. foliosa, S. alterniflora, and Spartina hybrids. Under field conditions, S. foliosa sustained a higher incidence of disease in coastal marshes than in marshes within the bay. This geographic effect may be attributable to environmental differences between the coast and the bay proper, with the former being more conducive to infection by C. purpurea. Seed set of S. foliosa spikelets was 40 to 70% lower on infected than on uninfected inflorescences, but seed germination was not affected. The C. purpurea epidemic on S. foliosa on the coast north of the San Francisco Estuary further reduces the meager competitive ability of this declining native plant species.

scholarly journals Native Landscape Plants for South Florida

EDIS ◽  
1969 ◽  
Vol 2004 (4) ◽  
Author(s):  
Jody Haynes ◽  
John McLaughlin ◽  
Laura Vasquez
Keyword(s):  
Native Plants ◽  
Cooperative Extension Service ◽  
South Florida ◽  
Publication Date ◽  
Native Plant ◽  
University Of Florida ◽  
Native Plant Species ◽  
Landscape Plants ◽  
Good Stand ◽  
Public Landscapes

A previous publication, ENH854 (http://edis.ifas.ufl.edu/EP107), listed over 350 native and non-native plant species for south Florida. This new publication was developed as a supplement to ENH854, but it is also a good stand-alone reference for people wishing to add native plants to their private yards or public landscapes, or simply to learn more about them. This document is ENH 875, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date April 29, 2003. https://edis.ifas.ufl.edu/ep222  

scholarly journals A HISTORY OF SOUTH FLORIDA GARDENING—A REVIEW OF MABEL WHITE DORN AND MARJORY STONEMAN DOUGLAS' THE BOOK OF TWELVE FOR SOUTH FLORIDA GARDENS

HortScience ◽  
2005 ◽  
Vol 40 (3) ◽  
pp. 893d-893
Author(s):  
M. Beckford ◽  
J.F. Garofalo ◽  
Miami-Dade County
Keyword(s):  
Invasive Species ◽  
Plant Communities ◽  
South Florida ◽  
Native Plant ◽  
Wedelia Trilobata ◽  
Cryptostegia Grandiflora ◽  
Consumer Services ◽  
Noxious Weed ◽  
Brazilian Pepper ◽  
Jasminum Sambac

Published by the South FL Garden Club in 1928, when Mabel Dorn was president and Marjory Stoneman Douglas—famous for championing the protection of the Everglades—was garden editor of the Miami Herald, The Book of Twelve lists twelve tried and true flowering and shade trees, large to small shrubs, etc. for southern Florida, but also includes some plants which are now tried and true invasive species. The book was reviewed in July 2004 by the Univ. of Florida (FL)/Miami-Dade Florida Yards and Neighborhoods (FYN) Extension Agent in response to a request from a local garden club, which as a club project, had decided to re-print and distribute the book to its 100 members. Because it might encourage the use of invasive species, the review was discussed at a seminar on ecologically sustainable alternatives to invasive species. One recommended plant, Schinus terebinthefolius (Brazilian pepper) is now prohibited by the FL Dept of Environmental Protection and considered a noxious weed by the FL Dept of Agric and Consumer Services. The FL Exotic Plant Pest Council (FEPPC) considers five plants Category I invasives, i.e., exotics altering native plant communities, displacing natives, changing community structures or ecology, or hybridizing with natives. These include Lantana camara, Lonicera japonica, Abrus precatorius and Asparagus africanus. Ten plants are FEPPC Category II invasives, exotics increasing in abundance or frequency, but not yet altering plant communities as extensively as Category I species: Cestrum diurnum, Murraya paniculata, Sesbania punicea, Cryptostegia grandiflora, Jasminum sambac, Antigonon leptopus, Macfadyena unguis-cati, Asystasia gangetica, Wedelia trilobata, and Tradescantia fluminensis.

scholarly journals A common toad hybrid zone that runs from the Atlantic to the Mediterranean

2018 ◽  
Vol 39 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Jan W. Arntzen ◽  
Jacob McAtear ◽  
Roland Butôt ◽  
Iñigo Martínez-Solano
Keyword(s):  
Mitochondrial Dna ◽  
Species Identification ◽  
Contact Zone ◽  
Hybrid Zone ◽  
Atlantic Coast ◽  
Bufo Bufo ◽  
Mediterranean Coast ◽  
Common Toad ◽  
Similar Work ◽  
The Mediterranean

We document the distribution of the common toadBufo bufoand the spined toadB. spinosusat their contact zone across France with data from a mitochondrial DNA RFLP assay, complementing similar work including nuclear markers in the northwest and southeast of France and in Italy. We also reconstruct geographical clines across the species’ contact zone in central France.Bufo bufois found in the north-eastern half of France.Bufo spinosusis found in the south-western complement. The contact zone they form runs from the Atlantic coast near Caen, France, to the Mediterranean coast near Savona, Italy, and has a length of over 900 km. In central FranceB. bufoandB. spinosusengage in a hybrid zone with a unimodal genetic signature. Hybrid zone width is ca. 10 km at mitochondrial DNA and averages at 61 km for four nuclear loci. The hybrid zone is distinctly asymmetric with a signature ofB. spinosusinB. bufoand not the other way round. We attribute this observation toB. bufomoving southwards at the expense ofB. spinosus, with introgression in the direction of the advancing species. We noted substantial geographic variation in characters for species identification. Morphological species identification performs well in France, but breaks down in Italy. Mitochondrial DNA is inconclusive in south-eastern France and Italy. The nuclear genetic markers perform consistently well but have not yet been applied to the zone in full. Possible, but surely heterogeneous ecological correlates for the position of the hybrid zone are mountains and rivers.

Chemical Species Identification in an SEM by Changes in Emitted X-Ray Energies

1974 ◽  
Vol 32 ◽  
pp. 570-571
Author(s):  
R. H. Duff
Keyword(s):  
Species Identification ◽  
Valence Electron ◽  
Chemical Species ◽  
X Rays ◽  
Chemical Bonds ◽  
Small Shift ◽  
X Ray ◽  
Electron Transitions ◽  
Peak Energy ◽  
Chemical Combination

A material irradiated with electrons emits x-rays having energies characteristic of the elements present. Chemical combination between elements results in a small shift of the peak energies of these characteristic x-rays because chemical bonds between different elements have different energies. The energy differences of the characteristic x-rays resulting from valence electron transitions can be used to identify the chemical species present and to obtain information about the chemical bond itself. Although these peak-energy shifts have been well known for a number of years, their use for chemical-species identification in small volumes of material was not realized until the development of the electron microprobe.

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