B. Papp szerk.: Studia Botanica Hungarica 36. 2005 (Budapest, 2005)

Buczkó, Krisztina; Wojtal, A.: Moss inhabiting siliceous algae from Hungarian peat bogs

Stomatocyst 189 Zeeb and Smol. The cyst in Figure 76 is ornamented with regular reticulum, while the one in Figure 77 has a different reticulum. Two other figures are noteworthy. Figure 79 may be a Trachelomonas, while Figure 81 is SCP. SCP (Spheroidal Carbonaceous Particles) is the indicator of air-borne pollution from oil burning, and widely used in palaeolimnological studies. We documented its presence in Nagyláp (Kőszeg). Csaroda, Bábtava: Associated to the 3 studied peat moss species 26 diatom taxa could be listed. The abundance values were low. The flora and the dominant taxa were markedly different from those of the other localities and their "usual" peat bog flora and vegetation. The most abundant were Gomphonema clavatum (Table 1, Fig. 2) and Lemnicola hungarica. In the material from this peat bog we recorded also Hantzschia elongata a rarely reported taxon from Hungary (NÉMETH 2005). The Shannon diversity of diatoms is 3.38. The ratio of cysts is 2% (expressed to the total of siliceous algae), which may refer to the fact that the algae only hardly form resting spores. Csaroda, Nyíres-tó: 31 diatoms were identified from the 4 peat moss samples (Table 1, Fig. 2), Eunotia bilunaris var. mucophila was dominant, but the high abundance of the two Nitzschia species (N. acidoclinata and N. cf. perminuta) has distinguished the Nyires bog's diatom vegetation from the other studied mires. The Shannon diversity of diatoms is similar to that of Bábtava, the largest studied mire: here it is also 3.38. The cysts/diatom ratio (expressed to the total of siliceous algae) is 20%. Kelemér 1. Nagy-Mohos-tó: 7 samples were carefully studied, 6 of them was completely free of siliceous algae. Only on Sphagnum squarrosum were found 2 diatom taxa, Lemnicola hungarica and Eunotia paludosa. The diversity and the portion of cysts could not be calculated. Kelemér 2. Kis-Mohos-tó: Of the 7 peat moss samples we studied, 4 have supported very poor siliceous algal vegetation. Altogether 85 valves could be found for identification. The most abundant of them was Eunotia paludosa, the occurrence of others were sporadical (1 or 2 valves), see Table 1. The ratio of cysts (cysts/sum of siliceous algae) is 88%. Figs 3-23. Peat moss inhabiting diatoms. The scale bar is 10 urn in every SEM photo except Fig. 9, when it is 5 urn. The magnification of LM pictures are xl500. 3 = Cyclotella ocellata Pant., Nyírjes-tó; 4-5 = Aulacoseira granulata (Ehr.) Sim., Nyírjes-tó; 6 = Stephanodiscus sp., Nyírjes-tó; 7-9 - Achnanthidhim minutissimum (Kütz.) Czarnecki, Nyírjes-tó (Figs 7 and 8: LM, xl500; 9: SEM, scale bar = 5 urn); 10 = Sellaphora seminulum (Grun.) Mann, Bábtava; 11 = Naviculadicta sp., Bábtava; 12 = Psammothidium chlidanos (Hohn and Hellerman) Lange-Bert., Nyírjes-tó; 13-14 = Tabellaria flocculosa (Roth) Kütz., Nyírjes-tó; 15-16 = Eolimna minima (Grun.) Lange-Bert., Bábtava; 17-20 = Naviculadicta or Colonels sp., Bábtava; 21 = Navicula submuralis Hust. sensu lato, Bábtava; 22-23 = Lemnicola hungarica (Grun.) Round et Basson, Nyíres-tó.