Navicula supleeorum Bahls, 2013
publication ID |
https://doi.org/ 10.11646/phytotaxa.82.1.2 |
persistent identifier |
https://treatment.plazi.org/id/03F2878E-FFCF-F86B-46F6-FA8964E0FF6B |
treatment provided by |
Felipe |
scientific name |
Navicula supleeorum Bahls |
status |
sp. nov. |
Navicula supleeorum Bahls , sp. nov. ( Figs 69–75 View FIGURES 69–84 )
Valves lanceolate in larger specimens to elliptic-lanceolate in smaller specimens. Valve length 23–32 µm; valve width 6.1–7.0 µm. Apices acutely rounded, not protracted in larger specimens, weakly protracted in smaller specimens. Axial area narrow, barely wider than the raphe, widening into a small elliptic central area. Raphe straight and weakly lateral, becoming filiform near the proximal and distal ends. External proximal raphe ends dilated. Striae radiate, becoming parallel then weakly convergent at the apices, 12–14 in 10 µm. Alternate short-long-short striae typical in the central area. Areolae 30–32 in 10 µm.
Holotype:— USA, Montana: Valley County, Rock Creek , 48.5903 o N, 107.0011 o W, elevation 680 m, coll. Montana DEQ, 6 September 2004. MDC sample 339511; holotype slide MDC 108-22 ( Figs 69–75 View FIGURES 69–84 ) (circled holotype specimen in Fig. 72 View FIGURES 69–84 ). MONTU! GoogleMaps
Isotype: —MDC slide 28-59 (MONTU!).
Etymology:—This species is named in honor of Rosie Sada de Suplee and Michael Suplee, Montana Department of Environmental Quality.
Observations:— Navicula supleeorum has a lower stria density than N. cryptotenella Lange-Bertalot in Krammer & Lange-Bertalot (1985: 62) (14–16 in 10 µm) and N. wygaschii Lange-Bertalot (2001: 81) (16–18 in 10 µm). It also has a lower areolae density than N. cryptotenella (38 in 10 µm), N. wygaschii (36–38 in 10 µm), and N. mediocostata Reichardt (1988: 241) (35 in 10 µm).
Distribution and Ecology: — Navicula supleeorum is known only from the type locality. It probably has been mistaken for and lumped with N. cryptotenella in biological surveys. On the date the type sample was collected, pH in Rock Creek measured 8.30 and specific conductance measured 1402 µS/cm.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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