Lemnicola hungarica

(Grunow) Round and Basson 1997      Category: Monoraphid
BASIONYM: Achnanthidium hungaricum Grunow 1863
SYNONYM(S): Achnanthes hungarica (Grunow) Grunow in Cleve and Grunow | Achnanthidium hungaricum Grunow | Microneis hungarica (Grunow) Cleve 

Kobayasiella subtilissima

 

Mastogloia calcarea

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Marina Potapova - August 2010
Length Range: 8-40 µm
Width Range: 4.5-7.5 µm
Striae in 10 µm: 18-24

Description

Valves are linear to linear-elliptical with narrowed, rounded, or subrostrate apices. The raphe valve has a linear axial area and a stauros that is generally asymmetrical. The wider part of the stauros sometimes appears to have a “horse-shoe” depression. Terminal raphe fissures are short, slightly expanded, and turned toward opposite sides. Central raphe endings are drop-like externally, and curved to opposite sides internally. The rapheless valve has a narrow linear axial area and very small, often asymmetrical, irregularly shaped, transverse central area. Striae are biseriate and slightly radiate in the valve center, becoming strongly radiate at the apices, 18-24 in 10 µm . External and internal openings of areolae on the valve face are rounded to apically elongated at the valve margin. One row of elongated areolae is present on the valve mantle. Areolae are occluded by hymens internally.



Original Description

Basionym: Achnanthidium hungaricum
Author: Grunow 1863
Length Range: µm
Striae in 10 µm:

Original Description

Achnanthidium minutum a latere primario anguste lineare parum curvatum, valvis lineari oblongis apicibus subproductis obtusiusculis, nodulo centrali valvae inferioris lateraliter dilatato fasciam transversalem referente, striis transversis subtilibus 50 in 0.001”. Longit. 0.0007-0.0017”, latitud. lateris primar. 0.001”, latit. valvae 0.0003”. - Tab. nostr. 13 fig. 8a, b, c (400/1). Habitat ad litora meridionalia lacus Peisonis Hungariae, in lacunis parvis inter radicula Lemnarum.

Original Images


Cite This Page:
Potapova, M. (2010). Lemnicola hungarica. In Diatoms of the United States. Retrieved September 01, 2014, from http://westerndiatoms.colorado.edu/taxa/species/lemnicola_hungarica

Species: Lemnicola hungarica

Contributor: Marina Potapova

Reviewer: Sarah Spaulding

Citations

Buczko, K. (2007). The occurrence of the epiphytic diatom Lemnicola hungarica on different European Lemnaceae species. Fottea 7(1): 77–84.

Garcia, M. and Fonseca de Sousa, V. (2006). Lemnicola hungarica (Grunow) Round & Basson from Southern Brazil: ultrastructure, plastid morphology, and ecology. Diatom Research 21: 465-471.

Grunow, A. (1863). Ueber einige neue und ungenügend bekannte Arten und Gattungen von Diatomaceen. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wein. 13:137-162.

Round, F.E. and Basson, P.W. (1997). A new monoraphid diatom genus (Pogoneis) from Bahrain and the transfer of previously described species A. hungarica and A. taeniata to new genera. Diatom Research 12: 347-355.

Links & ID's

Index Nominum Algarum (INA)

Transfer INA

California Academy of Sciences (CAS)

Lemnicola hungarica CAS

North American Diatom Ecological Database (NADED)

NADED ID: 188001

Autecology Discussion

Images

Sexual reproduction in a culture of Lemnicola hungarica

Credit/Source: M. Potapova