Abstract

MAIDANA, Nora I.  and  SEELIGMANN, Claudia. Diatoms (Bacillariophyceae) from high altitude aquatic environments of Catamarca Province in Argentina. II. Bol. Soc. Argent. Bot. [online]. 2006, vol.41, n.1-2, pp.1-13. ISSN 1851-2372.

In this research focusing the diatoms of high topographic wetlands, 14 samples of different freshwater bodies (between 2,420 and 4,240 m a. s. l.) were studied. Two hundred and eight infrageneric taxa were identified, 90 of them are new records for the Catamarca province. The genera: Frankophila and Microcostatus and the species Achnanthes thermalis var. rumrichorum Lange-Bertalot; Amphora mira Krasske; Brachysira atacamae Hustedt; Frankophila similioides Lange-Bertalot & Rumrich; Gomphonema punae Lange-Bertalot & Rumrich; Haloroundia speciosa Diaz & Maidana; Luticola mollis Lange-Bertalot & Rumrich; Mastogloia atacamae Hustedt; Microcostatus andinus Lange-Bertalot& Rumrich; Navicula atacamana Patrick; Navicula parinacota Rumrich & Lange-Bertalot; Planothidium chilense (Hustedt) Lange-Bertalot; Staurosira pseudoconstruens (Marciniak) Lange-Bertalot; Surirella chilensis var constricta Hustedt y Surirella wetzellii Hustedt are new records for Argentina. A new combination is proposed: Ulnaria ulna var. constricta.

Keywords : Diatoms; High mountains; Puna; Prepuna; Argentina.

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