Eleocharis atropurpurea (Retz.) J.Presl & C.Presl

  • Authority

    Britton, Nathaniel L. & Millspaugh, Charles F. 1920. The Bahama Flora.

  • Family

    Cyperaceae

  • Scientific Name

    Eleocharis atropurpurea (Retz.) J.Presl & C.Presl

  • Description

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    Species Description - Annual; roots fibrous; culms tufted, very slender, 2-9 cm. high. Upper sheath 1-toothed; spikelet ovoid, many-flowered, subacute, 3-4 mm. long, 2 mm. in diameter or less; scales minute, ovate-oblong, persistent, purple-brown with green midvein and very narrow scarious margins; stamens 2 or 3; style 2-3-cleft; bristles 2-4, fragile, white, minutely downwardly hispid, about as long as the aehene; achene jet black, shining, 0.5 mm. long, smooth, lenticular; tubercle conic, minute, depressed but rather acute, constricted at the base.

  • Discussion

    Distribution and ecology: Hog Island, New Providence, Andros, Acklin's Island : Florida ; Cuba ; Porto Rico ; Central and western United States to Central America ; Europe ; Asia. Referred by Clarke to E. camptotricha Schiceinitzii Clarke, citing Northrop 524 b, from Conch Sound, Andros, but that has trigonous achenes, proliferous spikelets and is the same as E. prolifcra Torr., its older name. Our specimen of this number has lenticular achenes ; it is possible that two species were distributed under the same number. Mrs. Northrop's no. 745, indicated on her label as the same as 524 b, was determined by Mr. Clarke as E. atropurpurea. Purple Spike-rush.

  • Distribution

    Hog Island, New Providence, Andros, Acklin's Island : Florida ; Cuba ; Puerto Rico ; Central and western United States to Central America ; Europe.

    New Providence Bahamas South America| New Providence Bahamas South America| South Andros Bahamas South America| Florida United States of America North America| Cuba South America| Puerto Rico South America| Central America|