Xyris yutajensis 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, 5-7 cm longis, sublaevibus; vaginis ca. 1 cm longis, apice eligulatis et cum laminis confluentibus, ad basin versus gradatim latioribus, intus dense ciliatis; laminis 1-1.5 mm latis, glabris, margine hand incrassatis; scapo 10-22 cm alto, 0.5 mm diametro, subtereti, multicostato, glabro; vagina scapi eis foliorum simili, apiculata; spica anguste ovoidea, acuta, ad 10 mm longa, submultiflora; bracteis ellipticis, subacutis, tenuibus, area dorsali angusta laeve viridi praeditis, basilaribus valde reductis, alteris sepala subaequantibus; sepalis lateralibus liberis, aequilateralibus, lanceolatis, acutis, 5.5 mm longis, angustissime carinatis, glabris; placentis basilaribus.
Distribution and Ecology - Distribution. Known only by the type collection.
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Discussion
Fig. 22, A-F.
Type. Flowers yellow, perennial herb on wet rocks and banks, frequent in small savanna and along left fork of Caño Yutaje, alt. 1250 m, Serrania Yutaje, Rio Manapiare, 12 Feb 1953, Amazonas, Venezuela, Bassett Maguire & C. K. Maguire 35206 (holotype NY, isotype US).