Authority:
(Kützing) D. G. Mann
References:
Patrick, R. & Reimer, C. W (1966). The Diatoms of the United States I. Monographs of the Academy of Natural Sciences of Philadelphia. Pennsylvania. pp. 464; 550-551 [pl.43:9-10]
Synonyms:
Bacillaria fulva Nitz. 1817; Frustulia cuspidata Kütz. 1833; Navicula cuspidata (Kütz.) Kütz. 1844; Navicula cuspidata var. ambigua (Ehr.?) Cl. 1894; Navicula helvetica Brun 1895
Ecological Preference:
Fresh
Description:
Valve is lanceolate, gradually tapering towards acute, sometimes slightly attenuated or distinctly rostrate ends; axial area is linear and distinct; central area usually not differentiated from axial area though sometimes it might be slightly wider; an inner septum with irregular openings sometimes present; striae composed of puncta forming (parallel) transverse and longitudinal lines (22-26 in 10µm); length is 30-120µm, breadth is 15-25µm; striae count is 16-22 (may be 14-24) in 10µm
Projects:
Transect Project
