First documentation of Dichanthelium caerulescens (Poaceae) for the vascular flora of Louisiana, U.S.A.
DOI:
https://doi.org/10.17348/jbrit.v16.i2.1267Keywords:
Dichanthelium caerulescens, Panicum caerulescens, Dichanthelium roanokense, Dichanthelium dichotomum, grassland, coastal prairie, prairie, pine savanna, flatwoods, alkaline, flora, LouisianaAbstract
Dichanthelium caerulescens is documented for the first time in Louisiana, as the result of floristic fieldwork performed in 2019 through 2021. Louisiana records extend the range of D. caerulescens westward by approximately 265 mi (426.5 km) into the Western Gulf Coastal Plain ecoregion. These findings also identify a new habitat, coastal prairie, utilized by D. caerulescens.
References
ALLEN, C.M., D.A. NEWMAN, & H. WINTERS. 2004 Grasses of Louisiana, ed. 3. Allen’s Native Ventures, Pitkin, Louisiana, U.S.A.
BRANT, A.E. 2019. Panic grasses of southeastern Missouri: One new and one rediscovery. Phytoneuron 14:1–3.
CIAFRÉ, C.M. & L.D. ESTES. 2022. Two Coastal Plain Dichanthelium (Poaceae: Paniceae) disjunct in Tennessee grasslands and their conservation. Castanea 87(1):121–128.
CORRELL, D.S. 1979. New species and varieties from the Bahamas, Caicos, and Turks Island. J. Arnold Arbor. 60:154–162.
GLEASON, H.A. 1952. The new Britton and Brown illustrated flora of the northeastern United States and adjacent Canada. New York Botanical Garden and Hafner Press, New York, NY., U.S.A.
FRECKMANN, R.W. 1967. Taxonomic studies in Panicum subgenus Dichanthelium. Iowa State University, U.S.A. Theses and Dissertation.
FRECKMANN, R.W. & M.G. LELONG. 2003. Dichanthelium. In: Flora of North America Editorial Committee, eds. Flora of North America north of Mexico. Oxford University Press, New York, U.S.A., and Oxford, U.K. 25:406–451.
HANSEN, B.F. & R.P. WUNDERLIN. 1988. Synopsis of Dichanthelium (Poaceae) in Florida. Ann. Missouri Bot. Gard. 75:1637–1657.
Hitchcock, A.S. 1909. Catalogue of the grasses of Cuba. Contr. U.S. Natl. Herb. 12(6):183–258.
HITCHCOCK, A.S. & A. CHASE. 1951. Manual of the grasses of the United States, 2nd ed. Dover Publications, Inc., New York, U.S.A.
HOLCOMB, S.R., A.A. BASS, C.S. REID, M.A. SEYMOUR, N.F. LORENZ, B.B. GREGORY, S.M. JAVED, & K.F. BALKUM. 2015. Louisiana Wildlife Action Plan. Louisiana Department of Wildlife and Fisheries. Baton Rouge, U.S.A.
LEBLOND, R.J. 2001. Taxonomy of the Dichotoma group of Dichanthelium (Poaceae). Sida 19:821–837.
LEBLOND, R.J. 2020. Dichanthelium. In: Weakley, A.S. 2020. Flora of the southeastern United States. University of North Carolina Herbarium, North Carolina Botanical Garden, Chapel Hill, NC, U.S.A.
LELONG, M.G. 1984. New combinations for Panicum subgenus Panicum and subgenus Dichanthelium (Poaceae) of the southeastern United States. Brittonia 36:262–273.
RADFORD, A.E., H.E. AHLES, & C.R. BELL. 1964. Manual of the vascular flora of the Carolinas. University of North Carolina Press, Chapel Hill, U.S.A.
SEIFERT, C.L., R.T. COX, S.L. FORMAN, T.L. FOTI, T.A. WASKLEWICZ, & A.T. MCCOLGAN. 2009. Relic nebkhas (pimple mounds) record prolonged late Holocene drought in the forested region of south-central United States. Quaternary Res. 71:329–339.
SERNEC (Southeastern Regional Network of Expertise and Collections) Data Portal. 2021. http//:sernecportal.org/index.php. Accessed 27 Dec 2021.
THOMAS, J.R. 2015. Revision of Dichanthelium Section Lanuginosa (Poaceae). Phytoneuron 50:1–58.
THOMAS, R.D. & C.M. ALLEN. 1993. Atlas of the vascular flora of Louisiana. Natural Heritage Program, Louisiana Department of Wildlife and Fisheries. Baton Rouge, Louisiana, U.S.A.
U.S. EPA (United States Environmental Protection Agency). 2013. Level III and IV ecoregions of the continental United States. Corvallis, Oregon, U.S. EPA–National Health and Environmental Effects Research Laboratory (https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continentalunited-states, 20 December 2021).
WEAKLEY, A.S. 2020. Flora of the southeastern United States. University of North Carolina Herbarium, North Carolina Botanical Garden, Chapel Hill, U.S.A.
BRANT, A.E. 2019. Panic grasses of southeastern Missouri: One new and one rediscovery. Phytoneuron 14:1–3.
CIAFRÉ, C.M. & L.D. ESTES. 2022. Two Coastal Plain Dichanthelium (Poaceae: Paniceae) disjunct in Tennessee grasslands and their conservation. Castanea 87(1):121–128.
CORRELL, D.S. 1979. New species and varieties from the Bahamas, Caicos, and Turks Island. J. Arnold Arbor. 60:154–162.
GLEASON, H.A. 1952. The new Britton and Brown illustrated flora of the northeastern United States and adjacent Canada. New York Botanical Garden and Hafner Press, New York, NY., U.S.A.
FRECKMANN, R.W. 1967. Taxonomic studies in Panicum subgenus Dichanthelium. Iowa State University, U.S.A. Theses and Dissertation.
FRECKMANN, R.W. & M.G. LELONG. 2003. Dichanthelium. In: Flora of North America Editorial Committee, eds. Flora of North America north of Mexico. Oxford University Press, New York, U.S.A., and Oxford, U.K. 25:406–451.
HANSEN, B.F. & R.P. WUNDERLIN. 1988. Synopsis of Dichanthelium (Poaceae) in Florida. Ann. Missouri Bot. Gard. 75:1637–1657.
Hitchcock, A.S. 1909. Catalogue of the grasses of Cuba. Contr. U.S. Natl. Herb. 12(6):183–258.
HITCHCOCK, A.S. & A. CHASE. 1951. Manual of the grasses of the United States, 2nd ed. Dover Publications, Inc., New York, U.S.A.
HOLCOMB, S.R., A.A. BASS, C.S. REID, M.A. SEYMOUR, N.F. LORENZ, B.B. GREGORY, S.M. JAVED, & K.F. BALKUM. 2015. Louisiana Wildlife Action Plan. Louisiana Department of Wildlife and Fisheries. Baton Rouge, U.S.A.
LEBLOND, R.J. 2001. Taxonomy of the Dichotoma group of Dichanthelium (Poaceae). Sida 19:821–837.
LEBLOND, R.J. 2020. Dichanthelium. In: Weakley, A.S. 2020. Flora of the southeastern United States. University of North Carolina Herbarium, North Carolina Botanical Garden, Chapel Hill, NC, U.S.A.
LELONG, M.G. 1984. New combinations for Panicum subgenus Panicum and subgenus Dichanthelium (Poaceae) of the southeastern United States. Brittonia 36:262–273.
RADFORD, A.E., H.E. AHLES, & C.R. BELL. 1964. Manual of the vascular flora of the Carolinas. University of North Carolina Press, Chapel Hill, U.S.A.
SEIFERT, C.L., R.T. COX, S.L. FORMAN, T.L. FOTI, T.A. WASKLEWICZ, & A.T. MCCOLGAN. 2009. Relic nebkhas (pimple mounds) record prolonged late Holocene drought in the forested region of south-central United States. Quaternary Res. 71:329–339.
SERNEC (Southeastern Regional Network of Expertise and Collections) Data Portal. 2021. http//:sernecportal.org/index.php. Accessed 27 Dec 2021.
THOMAS, J.R. 2015. Revision of Dichanthelium Section Lanuginosa (Poaceae). Phytoneuron 50:1–58.
THOMAS, R.D. & C.M. ALLEN. 1993. Atlas of the vascular flora of Louisiana. Natural Heritage Program, Louisiana Department of Wildlife and Fisheries. Baton Rouge, Louisiana, U.S.A.
U.S. EPA (United States Environmental Protection Agency). 2013. Level III and IV ecoregions of the continental United States. Corvallis, Oregon, U.S. EPA–National Health and Environmental Effects Research Laboratory (https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continentalunited-states, 20 December 2021).
WEAKLEY, A.S. 2020. Flora of the southeastern United States. University of North Carolina Herbarium, North Carolina Botanical Garden, Chapel Hill, U.S.A.
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Published
2022-11-29
How to Cite
Early, B. S. (2022). First documentation of Dichanthelium caerulescens (Poaceae) for the vascular flora of Louisiana, U.S.A. Journal of the Botanical Research Institute of Texas, 16(2), 565–572. https://doi.org/10.17348/jbrit.v16.i2.1267
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FLORISTICS, ECOLOGY, & CONSERVATION
