G. Fekete szerk.: Studia Botanica Hungarica 9. 1974 (Budapest, 1974)

Vida, László: Diatoms from a brooklet affluent to Arax river (Armenian Republic, USSR)

ad 16. Rhoicosphaenia curvata (KÜTZ.) GRUN. Fig. 4. The majority of specimens in the sample are very small. GRUNOW' s diagnosis and author' s comparative material gives the limits of length as 12 and 75 p s. Frustules in the sample vary between 9 and 13 p . Perhaps another saline form. ad 18. Stauroneis minuscula VIDA Description, diagnosis and iconography in VIDA (1973) ad 20. Navicula cincta (EHR.) KÜTZ. Fig. 5. The specimens found in the sample do not resemble the illustrations available in the literature, although most points of the diagnosis can be easily identified. Differing points are: the transapical striae edging the central area are not conspicuously stronger and sparser than the average ones. Density of the striae 12-14/10 p in the middle, and 1416/10p toward the cell ends. Striae are distinctly lineolate. Outline of central area irregular, with "cryptocephala" character. Table 2.-2. tábla Fig. 5. Navicula cincta (EHR.) KÜNTZ Fig. 6. Navicula halophila f. subcapitata ÖSTR. Fig. 7. Surirella peisoni

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