Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 65. (Budapest 1973)

Kol, E.: Green snow from Haswel Island (Antarctica)

•nivalis CIIOD., Chlamydomonas antarcticus WILLE (Figs. 9-10), Coccomyxa dispar var. antarctica KOL (Figs. 22-23). I observed these algal species not only in the preserved material (mainly in their young developmental stages), but some of them were successfully brought also into culture from the desiccated samples. In these cultures, Chlorella antarctica (FRITSCH) WILLE, Pleurochloris anomala var. antarctica KOL, and Sphaerocystis schroeteri var. nivalis FRITSCH thrived well. In laboratory conditions, the cryobiont species are rather difficult to bring into culture. Table 1. Algae from Haswel island Algae Collected by TITKOS, 1966 Collected by VISY,

1972 Algae Haswel Island Haswel Island Algae snow soil green snow Chlorophyta + Chlamydomonas antarcticus WILLE + + Chlorella antarctica (FRITSCH) WILLE + + + Chlorosphaera antarctica FRITSCH + Coccomyxa dispar var. antarctica KOL + Fernandiella alpina CHOD. + Kentrosphaera antarctica KOL + Prasiola crispa (LIGHTF.) MENEGH. + + Scenedesmus bijugatus (ß) alternans (REISCH) HANSG. + Scenedesmus obliquus (TURPIN) KG. + + Scotiella antarctica FRITSCH + + Scotiella nivalis (SHUTTLEW) FRITSCH + + Sphaerocystis schroeteri var. nivalis FRITSCH + + Stichococcus fiivalis CHOD. + + Chrysophy ta : Xanthophyceae Chlor ochloster minimum PASCHER Monodus subterranea BOYE-PP:TERSEN + + Pleurochloris anomala var. antarctica KOL + -iCyanophyta Lyngbya murrayi W. et G. S. WEST. + Oscillatoria pristleyi W. & G. S. WEST + Phormidium frigidum FRITSCH + Phormidium glaciale W. & G. S. WEST. + Phormidium pristleyi FRITSCH + + = Cryobiont species Figs. 1-8. Chlorella antarctica (FRITSCH) WILLE (xlOOO): 1 =Aulosporangium with 8 autospores; 2 = autospores of diverse size; 3 =oval autósporé; 4 =autospore; 5 =aulospore group after liberation from autosporangium; 6 =oval cell; 7 =dividing cell, autospore formation; 8 =autospore formation. - Figs. 9-10: Chlamydomonas antarcticus FRIRSCH WILLE (xlOOO): 10= cell with mucigale envelope. Figs. 11-12. Scotiella antarctica FRITSCH, young specimens (XlOOO). Figs. 13. Scotiella nivalis (SHUTTLEW.) FRITSCH, young exemplar. — Figs. 14-17. Pleurochloris anomala var. antarctica KOL (XlOOO): 14 = autospores liberated after bursting of autosporangial wall; 15 = /oosporangium with numerous zoospores; 16 =autosporangium with numerous autospores; 17 =cells with 1-3 chloroplasts. — Figs. 18-20. Chlorosphaera antarctica FRITSCH, with thick mucigale envelope (xlOOO); 18 =with thick mucous envelope and stratified inner mucous cover. — Figs. 21. Nodularia spumigena MERTENS ( XlOOO); — Figs. 22-23. Coccomyxa dispar var. antartica KOL, witli thick mucigale envelope (XlOOO). — Fig. 24. Prasiola crispa (LICÍHTF.) MENEGH., young plant.