CPC National Collection Plant Profile
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Vaccinium sempervirens
Family: |
Ericaceae |
Common Name: |
Rayner's blueberry |
Author: |
Rayner & Henderson |
Growth Habit: |
Shrub, Subshrub |
CPC
Number: |
4363 |
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Primary
custodian for this plant in the CPC National Collection of Endangered
Plants is: |
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Vaccinium sempervirens
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Rayner’s Blueberry is a small trailing or spreading heath found in Atlantic white cedar bogs and seepage slopes and endemic to Lexington County in the Sandhills of South Carolina. It produces few small white flowers in late March to early April and even fewer fruits. The leaves of Rayner’s blueberry superficially resemble those of the creeping blueberry (V. crassifolium), but can be distinguished by their larger size. Kirkman and Ballington (1990) reduced it to a subspecies V. crassifolium, but Weakley (2002) prefers to retain it as a species because of its distinct morphology. Rayner’s blueberry was first described in 1980 and is endangered in South Carolina.
Distribution
& Occurrence |
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State Range
Habitat
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Trailing or spreading low-arching sub-shrub with semi-evergreen leaves. (Kirkman et al. 1989) |
Distribution
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Slopes along the headwaters of Scouter Creek in Lexington County South Carolina (about 6 miles). Shealey's Pond in Lexington County contains the type specimen. (Kirkman et al. 1989) |
Number Left
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Extremely uncommon endemic taxon with a very limited distribution. 3 populations known. (Kirkman et al. 1989) |
State/Area
Protection
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State/Area |
Rank |
Status |
Date |
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South Carolina |
S1 |
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6/19/1990 |
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Conservation,
Ecology & Research |
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Ecological
Relationships
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Found in a unique hillside seepage bog with a canopy of Chamaecyparis thyoides and Pinus serotina and also on some upland clay and sandstone outcroppings dominated by Pinus palustris (Kirkman et al. 1989). It is a poor sexual reproducer and asexual reproduction is by air layering and seems to determine colony size (Kirkman and Ballington 1989). |
Threats
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Isolated population and restricted range. |
Current Research Summary
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No current research underway. |
Current Management Summary
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Populations occur on private land. No current management or protection is afforded (Bert Pittman, South Carolina Heritage Trust Program, pers. comm.) |
Research Management Needs
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• Seed collection from all extant populations.
• Pollination ecology, basic community relationships, population genetic studies. |
Ex Situ Needs
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• Further seed collection and propagation are needed. |
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Books (Single Authors)
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Weakley, A.S. 2002. Flora of the Carolinas and Virginia, Working Draft. Unpublished--available on-line.
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Books (Sections)
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Kartesz, J.T. 1999. A synonymized checklist of the vascular flora of the U.S., Canada, and Greenland. In: Kartesz, J.T.; Meacham, C.A., editors. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden. Chapel Hill, NC.
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Journal Articles
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Kirkman, W.B. 1989. Vaccinium sempervirens Raf. - a Lost Synonym for Vaccinium ovatum Pursh. Rhodora. 91, 868: 279-281.
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Kirkman, W.B.; Ballington, J.R. 1990. Creeping Blueberries (Ericaceae: Vaccinium sect. Herpothamnus) -- A New Look at V. crassifolium Including V. sempervirens. Systematic botany. 15, 4: 679.
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Kirkman, W.B.; Wentworth, T.R.; Ballington, J.R. 1989. The ecology and phytosociology of the creeping blueberries, Vaccinium section Herpothamnus. Bulletin of the Torrey Botanical Club. 116: 114-133.
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Rayner, D.A.; Henderson, J. 1980. Vaccinium sempervirens (ERICACEAE), a new species from Atlantic white-cedar bogs in the sandhills of South Carolina. Rhodora. 82: 503-507.
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Shumway, S.W.; Banks, C.R. 2001. Species Distributions in Interdunal Swale Communities: The Effects of Soil Waterlogging. American Midland Naturalist. 145, 1: 137-146.
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Reports
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Gardner, R.K. 1996. Center for Plant Conservation 1996 Annual Report on Taxa in the National Collection. Institution: North Carolina Botanical Garden. St. Louis, MO: Center for Plant Conservation.
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This
profile was updated on 3/4/2010 |
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