SELECTED REFERENCES 133 



Subelliptical (adj). Almost elliptical in shape. 



Subpolar (adj). Near the pole, end, or apex. 



Subspherical (adj). Almost spherical in shape. 



Sulcus (n). A groove or furrow. 



Suture (n). The seam or ridge formed by apposed margins. 



Tabular (adj). Table shaped; having a flat surface. 



Terminal (adj). At or near the end. 



Trichome (n). A uniseriate row of cells in a filament; a filament exclusive of a gelatinous 



sheath. 

 Truncate (adj). Terminating abruptly by a nearly straight edge or surface. 

 Tvchoplankton (n). Organisms in the plankton, which were scoured from the bottom. 

 Undulate (adj). Wavy. 

 Uniflagellate (adj). Having one flagellum. 

 Uniseriate (adj). In a single row. 



Vacuole (n). An area in the protoplasm containing cell fluid and sometimes granules. 

 Valve (n). The silicified parts of a diatom cell. 

 Verrucose (adj). Covered with wartlike elevations. 

 Vesicule (n). A bladderlike structure. 

 Zoospore (n). A flagellated, asexually formed spore. 

 Zygote (n), zygotic (adj). A cell resulting from the union of two gametes or gametic 



nuclei. 



SELECTED REFERENCES 



Agardh, C. A., 1824, Systema algarum: Lund, v. 1, 312 p. 



Ahlstrom, E. H., 1937, Studies on variability in the genus Dinobryon (Mastigophora): 



Transactions of the American Microscopical Society, v. 56, p. 139-159. 

 Ahlstrom, E. H., and Tiffany, L. H., 1934, The algal genus Tetrastrum: American 



Journal of Botany, v. 21, p. 499-507. 

 Bigeard, E., 1933, Les Pediastrum d'Europe. Etude biologique et systematique: Trav. 



Lab. Bot., Univ. Cathol. Angers, no. 5, p. 1-192. 

 Bold, H. C, and Wynne, M. J., 1978, Introduction to the algae -Structure and reproduc- 

 tion: Englewood Cliffs, N.J., Prentice-Hall, Inc., 706 p. 

 Bory (de St. Vincent), J. B., 1822-1831, in Dictionnaire d'histoire naturelle: Paris. 

 Boyer, C. S., 1927a, Synopsis of the North American Dictomaceae, Part 1: Proceedings 



of the Academy of Natural Sciences of Philadelphia, v. 78, supplement, p. 1-228. 

 1927b, Synopsis of the North American Diatomaceae, Part 2: Proceedings of the 



Academy of Natural Sciences of Philadelphia, v. 78, supplement, p. 229-583. 

 Brunnthaler, J., 1915, Protococcales, in Pascher, A., Die Susswasserflora Deutschlands, 



Osterreichs, und der Schweiz, Heft 5, Chlorophyceae 2: Jena, p. 52-205. 

 Chapman, V. J., 1962, The algae: New York, Macmillan, 472 p. 

 Chodat, R., 1894, Materiaux pour servir a l'histoire des Protococcoidees: Bull. Herb. 



Boiss., v. 2, p. 585-616. 

 1895, Uber die Entwickelung der Eremosphaera viridis de By: Bot. Zeitg., v. 53, 



p. 137-142. 

 1897, Recherches sur les algues pelagiques de quelques lacs suisses et francais: 



Bull. Herb. Boiss., v. 5, 289-314. 

 -1926, Scenedesmus. Etude de genetique, de systematique experimentale et 



d'hydrobiology: Revue d'Hydrologie, v. 3, p. 71-258. 

 Cleve, P. T., 1894, Synopsis of the naviculoid diatoms: Kungliga Svenska Veten- 

 skapsakademiens Handlingar, v. 26, p. 1-194. 



