Nitzschia inconspicua
Grunow 1862 Category: Nitzschioid
BASIONYM: Nitzschia inconspicua Grunow 1862
SYNONYM(S): Nitzschia frustulum var. inconspicua (Grunow) Grunow 1882 | Homoeocladia inconspicua (Grunow) Kuntze 1898
LM scalebar = 10 µm = 80 pixels.
Observations
Contributor: Pat Kociolek - September 2011
Length Range: 3-17 µm
Width Range: 2.0-3.0 µm
Striae in 10 µm: 20-25
Description
Larger valves are linear, while smaller valves are elliptical. Apices are rounded, but are not protracted or differentiated from the rest of the valve. Fibulae are large, with the middle fibula larger and more distinct than the others. Fibulae number 8-10 in 10 µm. Striae are parallel at the center of the valve, arched near the poles (evident especially in smaller cells).
Original Description
Basionym: Nitzschia inconspicua
Author: Grunow 1862
Length Range: µm
Striae in 10 µm:
Original Description
Original Images
Cite This Page:
Kociolek, P. (2011). Nitzschia inconspicua. In Diatoms of the United States. Retrieved June 18, 2013, from http://westerndiatoms.colorado.edu/taxa/species/nitzschia_inconspicua
Species: Nitzschia inconspicua
Contributor: Pat Kociolek
Reviewer: Marina Potapova
- Valves small
- Valves linear to elliptical
- Fibulae relatively large
- Striae arched near the poles
Valves are linear to elliptical. Fibulae are large, with the middle one larger and more distinct than the others. Striae are parallel at the center of the valve, but arched near the poles, especially in smaller valves.
Compare
This species name has sometimes been applied to specimens of N. innominata. These two very small species differ by the more elliptical valves, relatively more robust fibulae and arched striae at the apices of N. inconspicua.
Nitzschia innominata
Citations
Grunow, A. (1862). Die österreichischen Diatomaceen nebst Anschluss einiger neuen Arten von andern Lokalitäten und einer kritischen Uebersicht der bisher bekannten Gattungen und Arten. Erste Folge. Epithemieae, Meridioneae, Diatomeae, Entopyleae, Surirelleae, Amphipleureae. Zweite Folge. Familie Nitzschieae. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 12: 368, Pl. 7, fig. 8.
Krammer, K. and Lange-Bertalot, H. (1988). Bacillariophyceae. 2. Teil: Bacillariaceae, Epithemiaceae, Surirellaceae. In: Ettl, H., J. Gerloff, H. Heynig and D. Mollenhauer (eds.) Susswasserflora von Mitteleuropa, Band 2/2. Gustav Fisher Verlag, Jena.
Mann, D.G., Sato, S., Rovira, L. and Trobajo, R. (2013). Paedogamy and auxosporulation in Nitzschia sect. Lanceolatae (Bacillariophyta). Phycologia 52(2): 204–220. 10.2216/12-077.1
Links & ID's
Index Nominum Algarum (INA)
California Academy of Sciences (CAS)
NCBI Genbank Taxonomy
North American Diatom Ecological Database (NADED)
NADED ID: 48122