Ruppia

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Ruppia

 

a genus of aquatic perennial herbs of the family Ruppiaceae (formerly included in the family Potamogetonaceae). Except for the inflorescence, the plant is completely submerged in the water. The threadlike leaves are alternate or opposite. The small, bisexual flowers are in a two-flowered terminal spike. A perianth is absent. The fruit generally consists of four to six drupaceous lobes borne by long, thin pedicels. There are three or four species, distributed in the temperate and subtropical zones. The plants grow in saltwater and brackish shallows along the shores of seas and inland waters. There are two species in the USSR—R. maritima and tassel pondweed (R. spiralis). The plants serve as food for swimming birds.

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purple needle grass Ruppiaceae Ditch-Grass Family Ruppia maritima L.
Caribe: hay 16 familias, Achatocarpaceae, Berberidaceae, Buxaceae, Coriariaceae, Cymodoceaceae, Cytinaceae, Grossulariaceae, Juncaceae, Krameriaceae, Montiaceae, Myricaceae, Nelumbonaceae, Ruppiaceae, Surianaceae, Tetrachondraceae y Tropaeolaceae.
Agardh) Ouriques & Bouzon, 2000 as Ectocarpus breviarticulatus Magnoliophyta: Liliopsida: Ruppia maritima Linnaeus, 1753 Najadales: Ruppiaceae Magnoliophyta: Liliopsida: Halophila baillonis Ascherson, Alismatales: Hydrocharitaceae 1874 Magnoliophyta: Magnoliopsida: Avicennia sp.
Notable is the fact that the submersed aquatics in the order (Aponogetonaceae, Hydrocharitaceae, Najadaceae, Ruppiaceae, Zannichelliaceae, Zosteraceae) lack vessels throughout the plant.
Zuccarello (C; L) PHYLUM MAGNOLIOPHYTA Clase Angiospermae Superorden Alismatiflorae Orden Hydrocharitales Familia Hydrocharitaceae Halophila Du Petit Thouars, 1806 Halophila decipiens ostenfeld (2; S y C; L) Halophila engelmanni Ascherson (2; S y C; L) Thalassia Banks ex Konig in Konig & Sims, 1805 Thalassia testudinum Banks ex Konig (2; S y C; L) Orden Potamogetonales Familia Cymodoceaceae Halodule Endlicher, 1981 Halodule wrightii Ascherson (2; S y C; L) Syringodium Kutzing in Hohenacker, 1860 Syringodium filiforme Kutzing in Hohenacker (2; S y C; L) Familia Ruppiaceae Ruppia Linnaeus, 1753 Ruppia maritima Linnaeus (7; S y C; L)
Familia Generos Especies Especies Categorias endemicas infraespecificas Alismataceae 2 18 3 2 Amaryllidaceae 2 5 1 Araceae 2 2 - Bromeliaceae 1 1 - Cannaceae 1 1 - Commelinaceae 5 7 2 Cymodoceaceae 2 3 - Cyperaceae 18 125 21 5 Eriocaulaceae 4 16 6 Hydrocharitaceae 6 7 - 1 Iridaceae 3 15 6 Juncaceae 1 18 1 1 Juncaginaceae 2 2 - Lemnaceae 4 15 - Limnocharitaceae 2 9 - Marantaceae 1 1 - Mayacaceae 1 1 - Najadaceae 1 3 - 1 Orchidaceae 9 15 3 Poaceae 26 75 10 Pontederiaceae 3 15 - Potamogetonaceae 2 10 - Ruppiaceae 1 2 - Sparganiaceae 1 2 - Typhaceae 1 2 - Xyridaceae 1 7 - 1 Zannichelliaceae 1 1 - Zosteraceae 1 3 - Total 104 381 53 11 Cuadro 2.