Burge, Marsico and Edlund 2015 Category: Symmetrical biraphid
BASIONYM: Stauroneis kingstonii Burge, Marsico and Edlund 2015
Valves are narrow and linear-lanceolate, with acutely around apices. The axial area is lanceolate. The central area is a narrowly rectangular stauros, widening near the margins to form a “bowtie” shape. The raphe is lateral, becoming filiform near the ends. The proximal raphe ends are nearly straight and weakly inflated. The distal raphe ends are sickle shaped. The striae are radiate throughout the valve. Areolae are distinct and number 16-20 in 10 µm. Pseudosepta are absent.
Basionym: Stauroneis kingstonii
Author: Burge, Marsico and Edlund 2015
Length Range: 118.0–186.3 µm
Width Range: 14.7–20.1 µm
Striae in 10 µm: 11-13
Valves linear-lanceolate and relatively narrow with acutely rounded ends. Length 118.0–186.3 μm, breadth 14.7–20.1 μm. Axial area narrow at the apices, widening toward the stauros (Fig. 10). Central area with a rectangular stauros, slightly widening near the valve margins. Shortened striae not observed in the central area. Raphe fissures lateral, proximal endings nearly straight, and distinctly inflated (Fig. 10). Distal raphe ends hooked in a sickle shape toward the secondary side of the valve (Fig. 10). Striae radiate throughout, 11–13 in 10 μm. Areolae within striae distinct, 16–20 in 10 μm. For measurements, n = 44 valves. Pseudo septa were not observed.
Cite This Page:
Burge, D., and Edlund, M. (2015). Stauroneis kingstonii. In Diatoms of the United States. Retrieved March 23, 2017, from http://westerndiatoms.colorado.edu/taxa/species/stauroneis_kingstonii
Species: Stauroneis kingstonii
Reviewer: Pat Kociolek
Burge, D.R.L. (2014). Relations of water quality, land use buffers, and diatom communities of connected depressions within the Cache River Watershed, Arkansas, USA. M.S. Thesis. Arkansas State University, Jonesboro, Arkansas. 141 pp.
Burge, D.R.L., Marsico, T.D. and Edlund, M.B. (2015). Stauroneis kingstonii sp. nov. (Bacillariophyta: Naviculales), a new diatom species from the Black Swamp, Arkansas, USA. Phytotaxa 205 (3): 177–186. 10.11646/phytotaxa.205.3.5
Stauroneis kingstonii is a taxon only known to epidendric and benthic habitats in Cypress-Tupelo wetlands of the Cache River watershed (Burge et al. 2015). These woodland dominated riverine wetlands were slightly acidic to circumneutral (5.78-7.12) with low to moderate specific conductivity (71.2-537.0 μS) and high nutrients (TN 0.76-7.18 mg/L and TP 0.1-3.9 mg/L). Other diatoms found occurring in greater than 5% abundance with S. kingstonii included; Achnanthes inflata, Diadesmis confervacea, Eolimna tantula, Eunotia bilunaris, E. metamonodon, Frustulia vulgaris, Gomphonema gracile, Humidophila contenta, Lemnicola hungarica, Nitzschia amphibia, and N palea (Burge 2014).