THOMAS, E.W., J.P. KOCIOLEK, R.L. LOWE, & J.R. JOHANSEN 2009 (Feb.) Taxonomy, ultrastructure and distribution of gomphonemoid diatoms (Bacillariophyceae) from Great Smoky Mountains National Park (U.S.A.) Beih. Nova Hedwigia 135: 201-237, 141 figs., 1 table [n.spp. in Gomphonema, Gomphosphenia] |