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Diatoms of the United States is now known as Diatoms of North America.
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Citations starting with "u"

Hand-selected and searchable references

Ueyama, S. and Kobayasi, H. (1988). Two Gomphonema species with strongly capitate apices: G. sphaerophorum Ehr. and G. pseudosphaerophorum sp. nov. F.E. Round, ed., Proceedings of the Ninth International Diatom Symposium, 1986. Biopress Ltd., Bristol, and Koeltz Scientific Books, Koenigstein. pp. 449-458.   
Gomphonema pseudosphaerophorum |

Usolseva, M.V. and Likhoshway, Y.V. (2007). An analysis of type material of Aulacoseira islandica (O. Muller) Simonsen. Diatom Research 22: 209-216.   
Aulacoseira |

Usoltseva, M., Khuresvish, G., Rasskozov, S., Vorob'eva, S. and Chernyaeva, G. (2010). Morphology of Actinocyclus and Lobodiscus species (Bacillariophyta) from the Miocene deposits of the Vitim Plateau, Russia. Plant Ecology and Evolution 143(3): 352-364. 10.5091/plecevo.2010.410

Ussing, A.P., R. Gordon, L. Ector, K. Buczko, A.G. Desnitskiy and S.L. Van Landingham. (2005). The colonial diatom Bacillaria paradoxa: chaotic gliding motility, Lindenmeyer Model of colonial morphogenesis, and bibliography, with translation by O.F. Muller (1783). Diatom Monographs 5: 139 pp.   
Bacillaria |