Diatomaceae of Philadelphia Plate 26

Description:

Illustration from Diatomaceae of Philadelphia and Vicinity. Original description follows:
PLATE 26 Fig. 1-2 Navicula cuspidata Kuetz. 3 Navicula cuspidata var. ambigua (Ehr.) Cl. 4 Navicula spicula (Hickie) Cl. 5 Navicula integra Wm. Sm. 6 Navicula mutica Kuetz. 8 Navicula americana Ehr. 9 Navicula pupula var. bacillarioides Grun. 10 Navicula bacillum Ehr. 11 Navicula semen Ehr. 12 Navicula atomus Nægeli. 13 Navicula minima Grun. 14 Navicula ramosissima (Ag.) Cl. 15 Navicula crucigera (Wm. Sm.) Cl. 16 Navicula viridula var. rostellata Kuetz. 17 Navicula radiosa Kuetz. 19 Navicula gracilis var. schizonemoides (Ehr.) V. H. 20 Navicula peregrina Ehr. 21 Navicula cyprinus (Wm. Sm.) 22 Navicula reinhardtii Grun. 23 Navicula lanceolata var. arenaria (Donk.) Cl. 24 Navicula salinarum Grun. 25 Navicula gastrum Ehr. 26 Navicula anglica Ralfs. 7 Diploneis oculata (Bréb.) Cl. 18 Stauroneis frickei var. angusta n. var.