Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .
You can also click on one of labeled areas on the map to browse by location.
Pinnularia microstauron 01
Patrick, R. & Reimer, C. W (1966). The Diatoms of the United States I. Monographs of the Academy of Natural Sciences of Philadelphia. Pennsylvania. pp. 597-598; 650-651 [pl.55:12]
Stauroptera microstauron Ehr. 1843; Navicula bicapitata var. hybrida Grun. in V. H. 1880; Pinnularia microstauron (Ehr.) Cl. 1891
Valve is linear with usually broadly rostrate, occasionally somewhat rounded ends; axial area is narrow, usually less than 1/4 the valve breadth, widening towards a transverse central area; striae are radiate at the valve centre, becoming convergent toward the apices; length is 25-90µm, breadth is 7-11µm (length-to-breadth ratio is quite variable, but more typically between 5:1 and 6.4:1); striae count is 10-13 in 10µm