(Hustedt) Nakov, Guillory, M.L.Julius, E.C.Ther. and A.J.Alverson 2015 Category: Centric
BASIONYM: Cyclotella delicatula Hustedt 1952
REPORTED AS: Cyclotella cf. delicatula Hustedt (Reavie and Kireta 2015, pg. 28 Pl. 12, Fig. 1-16)
Valves are disc shaped. The valve face is flat, and is often colliculate. A single, central fultoportula is located in the center valve, across the valve face from the single rimoportula. The rimoportula is located at the central end of a shortened stria. Alveolate striae extend 1/3 of the radius from the valve margin. The alveolate striae end irregularly, resulting in an irregularly shaped central area. Internal foramen of the striae are visible in larger specimens, near valve face margin. The alveolate striae occur 16-20 in 10 µm (total striae count vs valve circumference) or 17-22 in 10 µm (tangential chord count).
Basionym: Cyclotella delicatula
Author: Hustedt 1952
Diameter: 5-13 µm
Rows of areolae in 10 µm: 17
Cyclotella delicatula nov. spec. Frustula in catenas densas conjuncta. Valvae circulares subplanae, diametro 5-13 µ. Zona marginalis lata, circiter 1/2-1/3 longitudinalis radii, delicate striata, striis radiantibus circiter 17 in 10 µ. striis validioribus intercalatis absentibus. Area media sine structura, sed cum puncto singulo. Fig. 34-36.
Cite This Page:
Burge, D., and Edlund, M. (2015). Lindavia delicatula. In Diatoms of the United States. Retrieved April 27, 2017, from http://westerndiatoms.colorado.edu/taxa/species/lindavia_delicatula
Species: Lindavia delicatula
Reviewer: Sarah Spaulding
Barbiero, R.P. and Tuchman, M.L. (2001). Results from the U.S. EPA’s Biological Open Water Surveillance Program of the Laurentian Great Lakes: I. Introduction and Phytoplankton Results. Journal of Great Lakes Research 27(2):134–154. 10.1016/S0380-1330(01)70628-4
Hustedt, F. (1952). Neue und wenig bekannte Diatomeen. IV. Botaniska Notiser 1952:366-410.
Nakov, T., Guillory, W.X., Julius, M.L., Theriot, E.C. and Alverson, A.J. (2015). Towards a phylogenetic classification of species belonging to the diatom genus Cyclotella (Bacillariophyceae): Transfer of species formerly placed in Puncticulata, Handmannia, Pliocaenicus and Cyclotella to the genus Lindavia. Phytotaxa 217 (3): 249–264. 10.11646/phytotaxa.217.3.2
Reavie, E.D. and Kireta, A.R. (2015). Centric, Araphid and Eunotioid Diatoms of the Coastal Laurentian Great Lakes. Bibliotheca Diatomologica 62:1-184.
Scheffler, W., Houk, V. and Klee, R. (2003). Morphology, morphological variability and ultrastructure of Cyclotella delicatula Hustedt (Bacillariophyceae) from Hustedt material. Diatom Research 18: 107-121. 10.1080/0269249X.2003.9705576
Lindavia delicatula is a species found in the plankton of large lakes. It was found at greater than 5% abundance in the summer phytoplankton of the Laurentian Great Lakes (Barbiero and Tuchman 2001). It is typically found in conditions of low total phosphorus and low chloride, and its presence is indicative of pristine conditions, (Reavie and Kireta 2015).