Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 69. (Budapest 1977)

P. Komáromy, Zs.: The algal flora of the Ördöglyuk cave at Szoplak (Hungary)

Table 2. Survey of different phenophases of aglal species* — 10 resting; 20 vegetative and asexual reproduction; 30 sexual reproduction; 40 disorganizational stages. Species localities Species brown soil from forest outside algal coat on rock wall calve clay cave soil rich in guano phenophases 10 20 30 40 10 20 30 40 10 20 30 4 0 10 20 30 40 CHLOROPHYCEAE Chlorella fusca — . 22 . 41 . 22 43 — Chlorella minutissima . 22 41 — . 22 . 22 . Chlorella zofingensis . 22 -1 1 . 22 . 41 — .22 .41 Chlorhormidium dissectum . 22 II . 22 . 43 — — Stichococcus bacillaris — . 22 . — — Chlorella sp. . 22 . 22 . XANTHOPHYCEAE Monodus unipapilla . 22 4.1 — — — Pleurochloris magna . 22 •H — — — Vischeria stellata . 22 BACILLARIOPHYCEAE Cymbella ventricosa 43 Hantzschia amphyoxis . 22 43 — — .22 .43 Melosira roeseana — . 22 . 43 — — Navicula contenta var. biceps 43 43 . 22 31 43 . 22 31 43 Navicula microcephala — 43 — — Navicula minima . 22 33 43 . 22 43 — Nitzschia communis 43 — — — Nitzschia communis var. perpusilla . 22 3] 43 . . . 43 Nitzschia palea 43 — — CYNOPHYCEAE Gloeocapsa punctata . 22 . Phormidium foveolarum . 22 — . 22 — Phormidium uncinatum . 22 — — — Plectonema gracillima — . 22 . 4 1 — * The complete enumeration and interpretation of the algal phenophases was elaborated by KOMAROMY (1976) examinations were made after eight months. Accordingly, the stage of sexual reproduction of diatoms was the consequence of the culture conditions. In the case of algal coat, the samples were examined microscopically on the day following collecting, but all the species were in the vegetative or disorganizational stages only. In the examined biotopes the diatoms play an important role, since 40.9 per cent of all species were Bacillariophyta, having solid cell walls thus surviving cell decay. Consequently, we could follow up the transfer of the specimens from one place to the other in the cave. According to the results of the phenological observations cells of 5 diatoma were in vegetative stage, those of 3 were able to multiply sexually and those of 4 remained in disorganizational stage. The high percentage of destroyed cells may be explained by the transfer itself or by unfavourable conditions prevailing at the new site. If is possible that the destruction of the species and specimens is the same in the case of other taxa (Chlorophyceae, Xanthophyceae and Cyanophyceae), too, but we could not observe it directly owing