Xyris carinata Maguire & L.B.Sm.
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Authority
Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
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Family
Xyridaceae
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Scientific Name
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Description
Latin Diagnosis - Herbae acaules, cespitosae; foliis lineari-ensiformibus, ad 15 cm longis, transverse rugulosis, rubescentibus; vaginis 3-4 cm longis, sulcatis, apice minutissime ligulatis et cum laminis confluentibus, basi triangulari-auriculatis; laminis 1 mm latis; scapo 25-30 cm alto, 0.5 mm diametro, tereti, ruguloso; vagina scapi subf oliacea, breviter laminata; spica ellipsoidea, dein ex sicco obovoidea, 8-10 mm longa, pauciflora; bracteis oblongo-ellipticis, rotundatis, atris, apice carinatis et area dorsali parva angusta praeditis, basilaribus valde reductis, alteris sepala superantibus; sepalis lateralibus liberis, aequilateralibus, linearibus, acutis, 7 mm longis, anguste carinatis, ad apicem versus brevissime ciliatis; placentis basilaribus, elongatis.
Distribution and Ecology - Distribution. Known only by the type collection.
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Discussion
Fig. 21, A-E.
Type. Flowers yellow, occasional in Bonnetia-grass savanna, summit Cerro Guanay, Cano Guaviarito, alt. 1800 m, Rio Manapiare, Rio Ventuari, 4 Feb 1951, Amazonas, Venezuela, B. Maguire, K. D. Phelps, C. B. Hitchcock & G. Budowski 31773 (holotype NY, isotype US).