B. Papp szerk.: Studia Botanica Hungarica 36. 2005 (Budapest, 2005)
Buczkó, Krisztina; Wojtal, A.: Moss inhabiting siliceous algae from Hungarian peat bogs
According to the card file collection "Flora et Iconographia Algarum Hungáriáé" (BUCZKÓ and RAJCZY 1998) 6 taxa are new for the Hungarian flora. Psammothidium chlidanos (Hohn et Hellerman) Lange-Bert. (Fig. 12): Valve length 14 um, width 4 um, 25-26 striae per 10 urn. Prefers oligotrophic waters with low mineral content. It was found in Sirok on Sphagnum fimbriatum. Mayamaea fossalis (Krasske) Lange-Bert. (Fig. 34): Valve length 9.5 urn, width 3.5 urn, 23 striae per 10 urn. Aerophilous, typical of predominantly intermittently wet habitats. Cosmopolitan; according to LANGE-BERTALOT (2001) "locally populations with very high individual numbers". Here, it may be regarded as a bryophytic diatom, in our samples only one valve was found at Bábtava on Calliergon cordifolium. Navicula submuralis Hust. sensu lato (Fig. 21): Valve length 7 um, width 3.5 um, 25 striae per 10 urn. The observed specimens were smaller than given in the original description. N. submuralis was found in Bábtava on Calliergon cordifolium. Stauroneis kriegerii Patrick (Figs 25-26): Valve length 19-21 urn, width 4-4.5 urn, 26-27 striae per 10 urn. Cosmopolitan but usually not abundant, prefers the low concentration of electrolytes, e.g. bogs. It was recorded only from Bábtava on Calliergon cordifolium, but there more than 12% of the diatoms belonged to S. kriegerii. Nitzschia acidoclinata Lange-Bert. (Figs 63-65): Valve length 32-34 urn, width 2.5-3 urn; 34 striae per 10 urn, fibulae 12 per 10 urn. Common in Nyíres-tó and Bábtava. Cymbella cf. gaeumannii Meister (Fig. 42): Valve length 20 urn, width 6 urn, 14 striae in 10 um. Characteristic for Northern European mires, in oligotrophic waters. It was found in Nagyláp (Kőszeg) on Sphagnum fimbriatum. As a first attempt, 10 morphotypes of Chrysophycean stomatocysts could be distinguished during the study. The characteristic types of cysts are presented on Figures 69-81 . Figure 69 illustrates the most abundant cysts-like plant being very similar to Stomatocyst S062 (PLA 2001), fitting well with the description. Very similar forms were published from Hungarian mires as Trachelomonas species (Longisetae group) (NÉMETH 1997). On the basis of our present knowledge, it would be premature to name the cysts shown in Figures 70-81. The statospores documented by us resemble Stomatocyst 134 Duff and Smol, Stomatocyst 6 Duff and Smol, Stomatocyst 378 Taylor and Smol, Stomatocyst 91 Duff and Smol. Among the cysts there are some, which are nonspherical, and having no collar, no ornamentation. In other case (Fig. 74) two spherical cysts are and of different size and lacking any collar or ornamentation, the bigger one resembling Stomatocyst 42 Duff and Smol, the smaller one
