Monographs Details:
Authority:
Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
Family:
Xyridaceae
Xyridaceae
Description:
Latin Diagnosis - Herbae breviter caulescens, ramosae; ramis erectis vel adscendentibus; foliis obscure distichis, ad 40 cm longis, vix rigidis, ex sicco leviter sulcatis, glabris, margine hand incrassatis; vaginis ad 14 cm longis, basi gradatim dilatatis, apice eligulatis et cum laminis confluentibus; laminis valde applanatis, acuminatis, 4 mm latis; scapo ca. 70 cm alto, subtereti, ecostato vel 1-2-costato, costis scabridis exceptis glabro laeveque; vagina scapi subfoliacea, lamina brevi sed distincta praedita; spica subglobosa, 9 mm longa, multiflora; bracteis late ovatis, subacutis, sepala superantibus, laevibus, marginibus patentibus latis membranaceis rubris laceratis praeditis, area dorsali carentibus, duabus basilaribus valde carinatis, alteris apice obscure carinatis; sepalis lateralibus liberis, ellipticis vel spathulatis, subaequilateralibus, 6 mm longis, carina minutissime ciliata; staminodiis penicillatis; placentis basilaribus; seminibus fusiformibus, biapiculatis, 0.8 mm longis.
Distribution and Ecology - Distribution. Known only by the type collection.
Latin Diagnosis - Herbae breviter caulescens, ramosae; ramis erectis vel adscendentibus; foliis obscure distichis, ad 40 cm longis, vix rigidis, ex sicco leviter sulcatis, glabris, margine hand incrassatis; vaginis ad 14 cm longis, basi gradatim dilatatis, apice eligulatis et cum laminis confluentibus; laminis valde applanatis, acuminatis, 4 mm latis; scapo ca. 70 cm alto, subtereti, ecostato vel 1-2-costato, costis scabridis exceptis glabro laeveque; vagina scapi subfoliacea, lamina brevi sed distincta praedita; spica subglobosa, 9 mm longa, multiflora; bracteis late ovatis, subacutis, sepala superantibus, laevibus, marginibus patentibus latis membranaceis rubris laceratis praeditis, area dorsali carentibus, duabus basilaribus valde carinatis, alteris apice obscure carinatis; sepalis lateralibus liberis, ellipticis vel spathulatis, subaequilateralibus, 6 mm longis, carina minutissime ciliata; staminodiis penicillatis; placentis basilaribus; seminibus fusiformibus, biapiculatis, 0.8 mm longis.
Distribution and Ecology - Distribution. Known only by the type collection.
Discussion:
Fig. A-F
Type. Rare around moist depressions and swales bordering river, scrub forest near Summit Camp, alt. 1925 m, central section Chimanta Massif, 2 Feb 1955, Bolivar, Venezuela, J. A. 8teyermark & J. J. Wurdack 356 (holotype NY, isotype US).