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Rhynchospora marliniana (Cyperaceae), a new species of Rhynchospora sect. Plumosae from northern Central America and southeastern North America

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Summary

The new species, Rhynchospora marliniana Naczi, W. M. Knapp & W. W. Thomas, is described, illustrated, and compared with morphologically similar species. Images are provided of its habitats, which are sunny, wet, and nutrient-poor savannas, pinelands, and streamsides in Belize, Honduras, Mexico, Nicaragua, and the southeastern USA. It is unique in Rhynchospora sect. Plumosae by having perianth bristles that are plumose only at their bases and have a smooth zone between the plumose and minutely denticulate zones. Additional diagnostic characters are dark brown proximal leaf sheaths and perianth bristles that exceed the tubercle. Rhynchospora marliniana survives burning, and quickly initiates both vegetative and reproductive growth after fire.

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References

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Acknowledgements

We thank the curators of the following herbaria for specimen loans or assistance during our visits: BM, BRH, DOV, F, FLAS, FSU, GA, GH, MICH, MO, MU, NA, NCU, NY, PH, US, VDB, and WIS. We also thank Bobbi Angell for drawing Rhynchospora marliniana and two anonymous reviewers for their helpful comments on the manuscript. Naczi thanks Jacob and Kelly Marlin for their warm hospitality at BFREE, introducing him to sedge-rich habitats in Belize, and providing much logistical support for field work. A grant from the United States Department of Agriculture-Cooperative State Research, Education, and Extension Service (USDA-CSREES grant 2005-38820-16378) to Naczi funded his field work in Belize. Belize Forest Department employees Marcelo Windsor, Hector Mai, Lizandro Quiroz, and George Hanson prepared collecting and export permits. Kenrick Witty (Belize Agricultural Health Authority) prepared phytosanitary certificates for the specimens. Linda Thornton and Nigel Richards provided permission to collect at Aquamar Shrimp Farm and Five Sisters Lodge, repectively. Knapp thanks Sherry Provo for preparing his collecting permit for Apalachicola National Forest.

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Authors and Affiliations

  1. The New York Botanical Garden, 2900 Southern Blvd, Bronx, NY, 10458-5126, USA

    Robert F. C. Naczi & Wm. Wayt Thomas

  2. Maryland Department of Natural Resources, Wildlife and Heritage Service, Wye Mills, MD, 21679, USA

    Wesley M. Knapp

Authors
  1. Robert F. C. Naczi
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  2. Wesley M. Knapp
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  3. Wm. Wayt Thomas
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Corresponding author

Correspondence to Robert F. C. Naczi.

Appendix 1

Appendix 1

Specimens of Rhynchospora plumosa cited in the text [when non-metric, distances as provided on labels are in brackets]. belize. Cayo Distr.: SE of Mai Gate, Mountain Pine Ridge Forest Reserve, 27 March 2006, Naczi 11327 (BRH, DOV, NY); 1.9 km [1.2 mi] SE of Mai Gate, Mountain Pine Ridge Forest Reserve, along Chiquibul Road, 8 April 2008, Naczi 12143 (BRH, DOV, K, MO, NY). usa. Florida: Liberty Co., c. 4 km [c. 2.5 mi] S of Kern, W side of route 65, Post Office Bay, Apalachicola National Forest, 6 Aug. 2008, Knapp 2545 (NY); 7.7 km [4.8 mi] S of Kern, W side of route 65, Post Office Bay, Apalachicola National Forest, 6 Aug. 2008, Knapp 2559 (NY).

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Naczi, R.F.C., Knapp, W.M. & Thomas, W.W. Rhynchospora marliniana (Cyperaceae), a new species of Rhynchospora sect. Plumosae from northern Central America and southeastern North America. Kew Bull 67, 771–778 (2012). https://doi.org/10.1007/s12225-012-9416-y

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  • DOI: https://doi.org/10.1007/s12225-012-9416-y

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