Navicula vilaplanii
(Lange-Bertalot & Sabater) Lange-Bertalot & Sabater in Rumrich et al. 2000 Category: Symmetrical biraphid
BASIONYM: Navicula longicephala var. vilaplanii Lange-Bertalot et Sabater in Sabater et al. 1990
LM scalebar = 10 µm = 80 pixels.
Observations
Contributor: Marina Potapova - October 2011
Length Range: 12-15.5 µm
Width Range: 2.5-3.3 µm
Striae in 10 µm: 20-24
Description
Valves are linear-lanceolate with very slightly protracted apices. The axial area is narrow and straight. The central area is small. The raphe is straight, with close proximal ends. Striae are strongly radiate around the center, becoming convergent at the apices. The areolae are indistinguishable under LM, approximately 50 in 10 μm.
Original Description
Basionym: Navicula longicephala var. vilaplanii
Author: Lange-Bertalot et Sabater in Sabater et al. 1990
Length Range: µm
Striae in 10 µm:
Original Description
Valves narrow, linear lanceolate, apices rounded to subcapitate, length of 14-17 µm, 2.5-3.3 µm width. Raphe straight and filiform, bent at the end, axial area narrow and linear, central area rounded, transapical striae radial in the center, highly convergent in the poles, 19-22 in 10 µm. Striae made up by 6-8 areolae/µm (in S.E.M.).
Original Images
Cite This Page:
Potapova, M. (2011). Navicula vilaplanii . In Diatoms of the United States. Retrieved May 24, 2013, from http://westerndiatoms.colorado.edu/taxa/species/navicula_vilaplanii
Species: Navicula vilaplanii
Contributor: Marina Potapova
Reviewer: Sarah Spaulding
Image Credit: Marina Potapova
- Valves linear-lanceolate
- Valves 2.5-3.3 μm wide
- Central area small
- Central striae strongly radiate
- Striae 20-24 in 10 μm
Valves are linear-lanceolate and narrow, with very slightly protracted apices. The central area is small. Striae are strongly radiate around the center, becoming convergent at the apices. The areolae are indistinguishable under LM.
Compare
Navicula vilaplanii differs from N. tenelloides by less protracted apices, more radiate central striae, and higher stria and areola density. Navicula longicephala is very similar to N. vilaplanii, but has rostrate to capitate valve apices.
Navicula longicephala
Navicula tenelloides
Citations
Rumrich, U., Lange-Bertalot, H. and Rumrich, M. (2000). Diatoms of the Andes. From Venezuela to Patagonia/Tierra del Fuego and two additional contributions. Lange-Bertalot, H. (ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 9. Phytogeography-Diversity-Taxonomy. Koeltz Scientific Books, Königstein, Germany, 9:673 pp.
Sabater, S., Tomàs, X., Cambra, J. and Lange-Bertalot, H. (1990). Diatom flora of the Cape of Creus Peninsula, Catalonia, N.E. of Spain. Nova Hedwigia 51(1-2):165-195.
Links & ID's
Index Nominum Algarum (INA)
California Academy of Sciences (CAS)
North American Diatom Ecological Database (NADED)
NADED ID: 46892