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                                    Entodon seductrix (Hedw.) Müll.Hal.
                                 | 
                                F. E. Drouet | P. Viosca 9311 a | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. In Bayou Sauvage… | 
                                — | 
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                                    Polysiphonia subtilissima Mont.
                                 | 
                                F. E. Drouet | P. Viosca 9316 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                    Polysiphonia subtilissima Mont.
                                 | 
                                F. E. Drouet | P. Viosca 9318 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                    Bostrychia moritziana (Sond. ex Kütz.) J.Agardh
                                 | 
                                F. E. Drouet | P. Viosca 9319 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                    Polysiphonia subtilissima Mont.
                                 | 
                                F. E. Drouet | P. Viosca 9320 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                    Polysiphonia
                                 | 
                                F. E. Drouet | P. Viosca 9325 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                    Polysiphonia
                                 | 
                                F. E. Drouet | P. Viosca 9326 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                | 
                                    Cladophora
                                 | 
                                F. E. Drouet | P. Viosca 9330 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. Lake Pontchartrain at… | 
                                — | 
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                                | 
                                    Polysiphonia subtilissima Mont.
                                 | 
                                F. E. Drouet | P. Viosca 9333 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in a tidal… | 
                                — | 
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                                | 
                                    Enteromorpha
                                 | 
                                F. E. Drouet | P. Viosca 9334 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in a tidal… | 
                                — | 
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                                | 
                                    Polysiphonia subtilissima Mont.
                                 | 
                                F. E. Drouet | P. Viosca 9335 | 
                                24 Nov 1854 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in a tidal… | 
                                — | 
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                                | 
                                    Compsopogon
                                 | 
                                F. E. Drouet | P. Viosca 9336 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in a tidal… | 
                                — | 
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                                    Polysiphonia
                                 | 
                                F. E. Drouet | P. Viosca 9337 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in a tidal… | 
                                — | 
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                                    Polysiphonia
                                 | 
                                F. E. Drouet | P. Viosca 9339 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. on large plants… | 
                                — | 
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                                | 
                                    Cladophora vagabunda (L.) C.Hoek
                                 | 
                                F. E. Drouet | P. Viosca 9340 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in shallow water… | 
                                — | 
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                                | 
                                    Cladophora
                                 | 
                                F. E. Drouet | P. Viosca 9341 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in shallow water… | 
                                — | 
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                                | 
                                    Cladophora vadorum (Aresch.) Kütz.
                                 | 
                                F. E. Drouet | P. Viosca 9344 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                ten miles southwest of Lake… | 
                                — | 
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                                | 
                                    Cladophora crispata (Roth) Kütz.
                                 | 
                                F. E. Drouet | P. Viosca 9374 | 
                                24 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Orleans Parish. in a pond… | 
                                — | 
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                                    Mougeotia
                                 | 
                                F. E. Drouet | P. Viosca 9393 | 
                                26 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Lafourche Parish. in shallow water… | 
                                — | 
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                                | 
                                    Stigeoclonium lubricum (Dillwyn) Kütz.
                                 | 
                                F. E. Drouet | P. Viosca 9423 | 
                                26 Nov 1949 | 
                                United States of America | 
                                Louisiana | 
                                in a freshwater marsh between… | 
                                — | 
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                                | 
                                    Cladophora thermalis P.Crouan & H.Crouan
                                 | 
                                F. E. Drouet | P. Viosca 9425 | 
                                26 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Lafourche Parish. in a pool… | 
                                — | 
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                                | 
                                    Cladophora crispata (Roth) Kütz.
                                 | 
                                F. E. Drouet | P. Viosca 9426 | 
                                26 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Lafourche Parish. in a pool… | 
                                — | 
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                                | 
                                    Cladophora thermalis P.Crouan & H.Crouan
                                 | 
                                F. E. Drouet | P. Viosca 9429 | 
                                26 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Lafourche Parish. in freshwater marshes… | 
                                — | 
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                                | 
                                    Caloglossa
                                 | 
                                F. E. Drouet | P. Viosca 9430 | 
                                26 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Lafourche Parish. east of Leesville,… | 
                                — | 
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                                | 
                                    Rhizoclonium riparium (Roth) Harv.
                                 | 
                                F. E. Drouet | P. Viosca 9430 a | 
                                26 Nov 1948 | 
                                United States of America | 
                                Louisiana | 
                                Lafourche Parish. east of Leesville,… | 
                                — | 
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