| 
                                    Cosmarium speciosum P.Lundell
                                 | 
                                C. Bullard s.n. | 
                                15 Jul 1914 | 
                                United States of America | 
                                Vermont | 
                                "Summit", wet rocks in the… | 
                                — | 
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                                    Cosmarium speciosum P.Lundell
                                 | 
                                C. Bullard s.n. | 
                                15 Jul 1914 | 
                                United States of America | 
                                Vermont | 
                                "Summit", wet rocks in the… | 
                                — | 
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                                    Ankistrodesmus falcatus var. acicularis (A.Braun) G.S.West
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1913 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. in an… | 
                                — | 
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                                | 
                                    Coelastrum microporum Nägeli
                                 | 
                                N. L. Gardner s.n. | 
                                Mar 1916 | 
                                United States of America | 
                                California | 
                                Univ. California, growing with other… | 
                                — | 
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                                    Agardhiella tenera (J.Agardh) F.Schmitz
                                 | 
                                F. S. Collins s.n. | 
                                Aug 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. Salt Pond | 
                                — | 
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                                | 
                                    Agardhiella tenera (J.Agardh) F.Schmitz
                                 | 
                                F. S. Collins s.n. | 
                                Aug 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. Salt Pond | 
                                — | 
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                                | 
                                    Spirogyra areolata
                                 | 
                                E. N. Transeau s.n. | 
                                07 May 1914 | 
                                United States of America | 
                                Illinois | 
                                Clark Co. north of Casey,… | 
                                — | 
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                                    Spirogyra areolata
                                 | 
                                E. N. Transeau s.n. | 
                                07 May 1914 | 
                                United States of America | 
                                Illinois | 
                                Clark Co. north of Casey,… | 
                                — | 
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                                    Monoraphidium griffithii (Berk.) Komárk.-Legn.
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1913 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. in an… | 
                                — | 
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                                | 
                                    Closterium pritchardianum W.Archer
                                 | 
                                N. L. Gardner s.n. | 
                                Mar 1916 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Golden Gate… | 
                                — | 
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                                | 
                                    Closterium venus Kütz. ex Ralfs
                                 | 
                                C. Bullard s.n. | 
                                05 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. North Saugus, Walden… | 
                                — | 
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                                | 
                                    Cylindrocystis brebissonii (Ralfs) de Bary
                                 | 
                                C. Bullard s.n. | 
                                04 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. North Saugus, Walden… | 
                                — | 
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                                    Cylindrocystis brebissonii (Ralfs) de Bary
                                 | 
                                C. Bullard s.n. | 
                                04 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. North Saugus, Walden… | 
                                — | 
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                                | 
                                    Cosmarium subtumidum Nordst.
                                 | 
                                C. Bullard s.n. | 
                                04 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. Walden Pond, in… | 
                                — | 
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                                | 
                                    Fauchea laciniata J.Agardh
                                 | 
                                N. L. Gardner s.n. | 
                                May 1916 | 
                                United States of America | 
                                California | 
                                Monterey Co. Pebble Beach, washed… | 
                                — | 
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                                | 
                                    Fauchea laciniata J.Agardh
                                 | 
                                N. L. Gardner s.n. | 
                                May 1916 | 
                                United States of America | 
                                California | 
                                Monterey Co. Pebble Beach, washed… | 
                                — | 
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                                | 
                                    Laurencia subopposita (J.Agardh) Setch.
                                 | 
                                N. L. Gardner s.n. | 
                                Dec 1913 | 
                                United States of America | 
                                California | 
                                Monterey Co. mostly in the… | 
                                — | 
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                                | 
                                    Janczewskia lappacea Setch.
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1912 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. 3 miles… | 
                                — | 
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                                | 
                                    Janczewskia lappacea Setch.
                                 | 
                                N. L. Gardner s.n. | 
                                Dec 1912 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. 3 miles… | 
                                — | 
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                                | 
                                    Janczewskia lappacea Setch.
                                 | 
                                N. L. Gardner s.n. | 
                                Dec 1912 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. 3 miles… | 
                                — | 
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                                | 
                                    Janczewskia moriformis Setch.
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1912 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. 3 miles… | 
                                — | 
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                                | 
                                    Janczewskia moriformis Setch.
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1912 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. 3 miles… | 
                                — | 
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                                | 
                                    Ceramium transversale Collins & Herv.
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1913 | 
                                United States of America | 
                                California | 
                                Orange Co. Laguna, on rocks… | 
                                — | 
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                                | 
                                    Ceramium transversale Collins & Herv.
                                 | 
                                N. L. Gardner s.n. | 
                                Feb 1913 | 
                                United States of America | 
                                California | 
                                Orange Co. Laguna, on rocks… | 
                                — | 
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                                | 
                                    Cosmarium pyramidatum Bréb.
                                 | 
                                C. Bullard s.n. | 
                                29 May 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in wet meadow… | 
                                — | 
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                                | 
                                    Cosmarium pyramidatum Bréb.
                                 | 
                                C. Bullard s.n. | 
                                29 May 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in wet meadow… | 
                                — | 
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                                | 
                                    Spirogyra punctiformis
                                 | 
                                E. N. Transeau s.n. | 
                                08 Jul 1914 | 
                                United States of America | 
                                Illinois | 
                                Coles Co. Tile factory pond | 
                                — | 
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                                | 
                                    Spirogyra punctiformis
                                 | 
                                E. N. Transeau s.n. | 
                                08 Jul 1914 | 
                                United States of America | 
                                Illinois | 
                                Coles Co. Tile factory pond | 
                                — | 
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                                | 
                                    Actinotaenium curtum (Bréb. ex Ralfs) Teiling
                                 | 
                                N. L. Gardner s.n. | 
                                Jan 1914 | 
                                United States of America | 
                                California | 
                                Alameda Co. in pool of… | 
                                — | 
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                                | 
                                    Cosmocladium saxonicum
                                 | 
                                C. Bullard s.n. | 
                                21 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in a railway… | 
                                — | 
                                 | 
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                                | 
                                    Xanthidium tylerianum
                                 | 
                                C. Bullard s.n. | 
                                21 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in a slow… | 
                                — | 
                                 | 
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                                | 
                                    Staurodesmus cuspidatus (Bréb.) Teiling
                                 | 
                                C. Bullard s.n. | 
                                01 Jul 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. Swain's Pond | 
                                — | 
                                 | 
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                                | 
                                    Oedogonium suecicum Wittr. ex Hirn
                                 | 
                                F. S. Collins s.n. | 
                                03 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in a swamp… | 
                                — | 
                                 | 
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                                | 
                                    Oedogonium suecicum Wittr. ex Hirn
                                 | 
                                F. S. Collins s.n. | 
                                03 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in a swamp… | 
                                — | 
                                 | 
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                                | 
                                    Staurastrum avicula
                                 | 
                                C. Bullard s.n. | 
                                26 Jun 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in pond west… | 
                                — | 
                                 | 
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                                | 
                                    Staurastrum avicula
                                 | 
                                C. Bullard s.n. | 
                                26 Jun 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in pond west… | 
                                — | 
                                 | 
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                                | 
                                    Stichococcus bacillaris Nägeli
                                 | 
                                F. S. Collins s.n. | 
                                25 Sep 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. east shore, on… | 
                                — | 
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                                | 
                                    Stichococcus bacillaris Nägeli
                                 | 
                                F. S. Collins s.n. | 
                                25 Sep 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. east shore, on… | 
                                — | 
                                 | 
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                                | 
                                    Ulothrix subtilis Kütz.
                                 | 
                                F. S. Collins s.n. | 
                                08 Sep 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. in a small… | 
                                — | 
                                 | 
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                                | 
                                    Oedogonium crenulatocostatum var. longiarticulatum Hansg.
                                 | 
                                F. S. Collins s.n. | 
                                28 Aug 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. in a small… | 
                                — | 
                                 | 
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                                | 
                                    Oedogonium crenulatocostatum var. longiarticulatum Hansg.
                                 | 
                                F. S. Collins s.n. | 
                                28 Aug 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. in a small… | 
                                — | 
                                 | 
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                                | 
                                    Chroothece monococca f. rupestris Hansg.
                                 | 
                                F. S. Collins s.n. | 
                                28 Apr 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in Edgar's greenhouse,… | 
                                — | 
                                 | 
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                                | 
                                    Closterium navicula (Bréb.) Lütkemüller
                                 | 
                                F. S. Collins s.n. | 
                                15 Sep 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. among Sphagnum in… | 
                                — | 
                                 | 
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                                | 
                                    Closterium rostratum Ehrenb. ex Ralfs
                                 | 
                                C. Bullard s.n. | 
                                14 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Norfolk Co. shore of Hoosicwhissick… | 
                                — | 
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                                | 
                                    Pleurotaenium coronatum (Bréb. ex Ralfs) Rabenh.
                                 | 
                                C. Bullard s.n. | 
                                01 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. near Swain's Pond | 
                                — | 
                                 | 
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                                | 
                                    Cosmarium pseudonitidulum var. validum West & G.S.West
                                 | 
                                F. S. Collins s.n. | 
                                08 Sep 1915 | 
                                United States of America | 
                                Massachusetts | 
                                Barnstable Co. among sphagnum in… | 
                                — | 
                                 | 
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                                | 
                                    Staurastrum dilatatum
                                 | 
                                C. Bullard s.n. | 
                                01 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. on moss in… | 
                                — | 
                                 | 
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                                | 
                                    Staurastrum dilatatum
                                 | 
                                C. Bullard s.n. | 
                                01 Jun 1916 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. on moss in… | 
                                — | 
                                 | 
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                                | 
                                    Staurastrum sebaldi Reinsch
                                 | 
                                C. Bullard s.n. | 
                                30 Jun 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in a ditch… | 
                                — | 
                                 | 
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                                | 
                                    Staurastrum sebaldi Reinsch
                                 | 
                                C. Bullard s.n. | 
                                30 Jun 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in a ditch… | 
                                — | 
                                 | 
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