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Reference
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Plots↓
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Description |
Comm #4981
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Vegetación Saxícola de las Serranías de Tandilia y Ventania
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:9038-{C446B26F-F493-42B0-A19A-9C80A055FCB9}
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Latin American Ecology Working Group n.d. |
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Comm #4982
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Matorrales de la Serranía de Tandilia
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:9037-{6B982D2C-58ED-4786-AD1A-83F82B1E20F9}
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Latin American Ecology Working Group n.d. |
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Comm #4983
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Pastizales de la Serranía de Tandilia
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:9036-{EA6B9F77-A17E-4C3F-BE93-073F3F24B9CE}
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Latin American Ecology Working Group n.d. |
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Comm #4984
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Eugenia borinquensis - Tabebuia rigida - Marcgravia sintenisii Shrubland
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accession code: VB.CC.36498.CEGL004852
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Areces-Mallea, A. E., A. S. Weak... |
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This 1- to 3-m tall shrubland occurs on the highest peaks (at elevations of 900-1050 m) in the Luquillo Mountains in eastern Puerto Rico, associated with <i>Tabebuia rigida - Ocotea spathulata - Eugenia borinquensis - Henriettea squamulosum</i> Forest. Dominant shrubs are <i>Eugenia borinquensis, Tabebuia rigida, Ocotea spathulata, Micropholis garciniifolia, Daphnopsis philippiana, Symphysia racemosa</i>, and <i>Ardisia luquillensis</i>. A dominant woody vine, often densely draped over shrub species, is <i>Marcgravia sintenisii</i>. Other shrub and vine species include <i>Ilex sintenisii, Psychotria guadalupensis ssp. grosourdyana, Henriettea squamulosum, Miconia sintenisii, Miconia pachyphylla, Vriesea sintenisii, Sloanea berteriana, Cyathea borinquena, Alsophila bryophila, Ardisia luquillensis, Calyptranthes krugii, Ocotea leucoxylon, Mikania pachyphylla, Psychotria maleolens, Gesneria viridiflora ssp. sintenisii, Podocarpus coriaceus</i>, and <i>Prestoea acuminata var. montana (= Prestoea montana)</i>. Herbaceous species include <i>Guzmania berteroana, Olfersia cervina, Peperomia emarginella, Jacquemontia solanifolia, Pilea leptophylla, Diplazium lherminieri, Anthurium dominicense, Blechnum fragile, Thelypteris deltoidea, Isachne angustifolia</i>, and <i>Selaginella krugii</i>. Most of the dominant shrubs are endemic either to the Luquillo Mountains of eastern Puerto Rico, or somewhat more widespread endemics of montane Puerto Rico. |
Comm #4985
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Sassafras albidum - Quercus spp. Forest
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accession code: VB.CC.34924.CEGL004096
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Southeastern Ecology Working Gro... |
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This community consists of deciduous forests dominated or codominated by <i>Sassafras albidum</i>. Most occurrences developed through catastrophic disturbance such as fire and/or partial clearcuts. These upland forests are found in patches along exposed slopes. Forests are primarily below 915 m (3000 feet) elevation and are usually associated with acidic slopes heavily disturbed by catastrophic fire. Forests occur primarily in the Southern Blue Ridge and Cumberland Mountains. This community includes pure, often even-aged stands of <i>Sassafras albidum</i>, as well as forests with <i>Liriodendron tulipifera</i> and <i>Quercus</i> spp. Throughout most of the range, <i>Carya alba</i> and <i>Castanea dentata</i> are often subcanopy dominants. The herbaceous layer varies widely depending upon geology but is often sparse. |
Comm #4986
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Andropogon glomeratus var. pumilus Herbaceous Vegetation
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accession code: VB.CC.36196.CEGL004099
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Southeastern Ecology Working Gro... |
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This broadly defined type represents wetland old fields and other related situations dominated by the nominal species, <i>Andropogon glomeratus var. pumilus (= Andropogon tenuispatheus)</i>. This vegetation occurs in disturbed wetland sites such as old fields (particularly old fields in bottomlands), as well as low areas and ditches in old fields. Additional types may be developed as more information becomes available. |
Comm #4987
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Eleocharis cellulosa Herbaceous Vegetation
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accession code: VB.CC.23968.ELEOCHARISCELLU
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Southeastern Ecology Working Gro... |
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This vegetation is found in shallow water lakes and lakeshores in tropical Florida, dominated by monospecific stands of Eleocharis cellulosa. These probably dry down to saturated conditions in the dry (winter) season. |
Comm #4988
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Quercus douglasii / Bromus sp. - Daucus pusillus Woodland
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accession code: VB.CC.27416.QUERCUSDOUGLASI
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Western Ecology Working Group of... |
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Comm #4989
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Acer saccharum - Betula alleghaniensis - Fagus grandifolia / Viburnum lantanoides Forest
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accession code: VB.CC.19980.ACERSACCHARUMBE
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Eastern Ecology Working Group of... |
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This association, known commonly as "northern hardwood forest," is a widespread matrix forest in central New England, and at lower elevations in northern New England. This forest occurs most commonly on acid (pH 5-6), moderate to well-drained tills at elevations generally below 2500 feet. In northern New England, they cover extensive mid-elevation ridges; elsewhere, slope settings are common. The closed-canopy forest has sparse to moderate shrub and herb cover, and may have local carpets of tree seedlings in the ground vegetation. Bryoids are a minor component of the forest floor. On some rocky, higher-elevation sites, dense ferns and other herbs may form a lush understory (the "fern-glade variant"). The canopy is dominated by Acer saccharum, Fagus grandifolia, and Betula alleghaniensis with associated hardwood species including Acer rubrum, Betula papyrifera, and Fraxinus americana. Conifers are usually present at low abundance. Characteristic species include Pinus strobus, Tsuga canadensis, and in the northern portion of the range, Picea rubens. Oaks are generally not present, although Quercus rubra and (southward) Quercus alba may be present in low numbers. Characteristic understory shrubs or subcanopy trees include Viburnum lantanoides, Acer spicatum, and Acer pensylvanicum. The patchy herbaceous layer is a mix of ferns, rhizomatous herbs and clubmosses. Characteristic species include Dryopteris intermedia, Dryopteris campyloptera, Huperzia lucidula, Maianthemum canadense, Clintonia borealis, Trientalis borealis, Oclemena acuminata (= Aster acuminatus), Uvularia sessilifolia. Occasional species include Aralia nudicaulis, Trillium erectum, Trillium undulatum, Streptopus lanceolatus (= Streptopus roseus), Cinna latifolia, Thelypteris noveboracensis, Solidago macrophylla, and Medeola virginiana. The bryophyte layer may include Dicranum spp. and Leucobryum glaucum. At higher elevations any of the understory herbs characteristic of montane spruce-fir forests may be locally abundant. Sugar maple leaf litter is high in nitrogen relative to lignin and thus decomposes rapidly, increasing the nutrient pool in the soil organic layer. Structure and composition of the forest are maintained primarily by single small tree-fall gaps. Yellow birch is maintained in the system by mineral soils on "tip up mounds." This type is related to the more enriched Acer saccharum - Fraxinus americana - Tilia americana / Acer spicatum / Allium tricoccum - Caulophyllum thalictroides Forest (CEGL005008), which is characterized by a different suite of herbs and by less beech and more ash in the canopy. Sites intermediate between the two, with sugar maple as the canopy dominant and a somewhat enriched herb flora, are distinguished as Acer saccharum - (Fraxinus americana) / Arisaema triphyllum Forest (CEGL006211). There is also a gradation from pure northern hardwoods to mixed conifer-hardwood forests, Tsuga canadensis - (Betula alleghaniensis) - Picea rubens / Cornus canadensis Forest (CEGL006129) and Picea rubens - Betula alleghaniensis / Dryopteris campyloptera Forest (CEGL006267). Northern hardwood forests with a white pine supercanopy have been segregated as Acer saccharum - Pinus strobus / Acer pensylvanicum Forest (CEGL005005). Oak - northern hardwood forests, Quercus rubra - Acer saccharum - Fagus grandifolia / Viburnum acerifolium Forest (CEGL006173) have oak as a more prominent canopy constituent. |
Comm #4990
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Fuirena scirpoidea - Rhynchospora tracyi Herbaceous Vegetation
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accession code: VB.CC.35835.CEGL004123
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Southeastern Ecology Working Gro... |
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Emergent zones of Coastal Plain limesink ponds and lakes dominated by <i>Fuirena scirpoidea</i> and <i>Rhynchospora tracyi</i>. This community may occur as a zonal band of vegetation along certain depressional wetlands primarily in the panhandle of Florida and adjacent Alabama. It is not found on all depressions originating from karstic development, but only those in which limestone is near the surface and not overburdened by deep soils. The presence of <i>Rhynchospora tracyi</i> is believed to be indicative of calcium near the surface (A. Johnson pers. comm.). |
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