19 



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Amcr. Month. >Iicr. .Joiiin., vol. i, p. 48. Now York 



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vol ii, p. 15. New York, 1881. 

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N. Y. 



Vol. vii, pp. 43-48, 1 plate, iv, 1880. 



Vol. viii, pp. 37-40, v, 1881. 



Vol. ix, pp. 1-4, 1 plate, vi, 1881. 



Vol. X, pp. 13-21, 1 plate, vi. 1883. 



Vol. xi, 13-17, 1 plate, vii, 1884. 

 WoLLE, F. — Desmids of the United States and List of 



American Pediastrums, with Eleven Hundred Illu.'^tra- 



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