Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 64. (Budapest 1972)
Kol, E.: Snow algae from Signy Island (South Orkney Islands, Antarctica)
the snow of the South Orkney Islands. Besides this species, the following algae were present in diverse quantities in Sample B : Chlamydomonas antarcticus WILLE., Mesotaenium berggreenii (WITTR). LAGERH., Cylindrocystis brébissonii MENEGH. fo. cryophila KOL, Cryodactylon antarctica KOL, Pleurococcus vulgaris var. cohaerens WITTR.. Scotiella nivalis (SHUTTLEW.) FRITSCH. Explanation ot Plate I. Figs. 1-2, 8. Chlorosphaera antarctica FRITSCH. 1: with laminate cell wall, ( X 1000), 2: with fat mass situated along cell wall; 8: with fat mass ( X 1000). Figs. 4-7, 10-30. Raphidonema antarctica sp. n. 4-7: (xlOOO): sigmoid filament consisting of 4 cells, 5: dividing filament, Raphidonema nivale-type, 6: filament with one mucronate and one rounded apical cell, filament divided, 7 : young filament of 4 cells, apical cells still rounded, 10-18: 8-16-32-cellular filaments in variously curved state, 19-30: ( X 1000), diverse developmental stages of a germinating cell; 19: sphaerical spore, 20, 22: elongate oval form, 21: slightly curved form, 23, 24: dividing cell, 25: advanced division' 4-celled filament with still rounded apical cell, 26: elongate cells after division, 27, 28: segment of filament after division, 29: helically curved 8-celled filament, 30: helically coiled filament. Fig. 31. Cryodactylon antarctica KOL ( X 1500). Figs. 3, 9, 32-39. Chlamydomonas antarcticus WILLE ( X 1000). 3: gigantic oval cell (x500), 9: cell with thick mucigale sheath, 32: oval cell with flagellum, 33, 34: oval cell without flagellum, 35: cellular division, 36: oval cells with flagellum, 37, 38: cellular division, 39: vegetative cell with two flagelli. Fig. 40: Mesotaenium berggrenii (WITTR.) LAGERH., 41 : dividing cell ( X 1000). Fig. 42: Chlorosphaera antarctica WJLT.E ( x 1000), with very thick mucigale sheath. Plate II. Microphotographs (by J. GÖNCZÖL) Fig. 1. Chlorosphaera antarctica FRITSCH, mass occurrence Fig. 2. Raphidonema antarctica n. sp., mass occurrence Fig. 3. Raphidonema antarctica n. sp., young filaments; one apical cell of filament rounded, the other pointed; one sinuous filament consisting of 8 cells. References: FOGG, G. E. (1967): Observation on the snow algae of the South Orkney Islands. Pilosoph. Transsee. of the Royal Soc. of London, Ser. B, 252 (777): 279-287. — FOGG, G. E. (1970): Biological productivity the Antarctic. Medical & Biological Illustr. 20: 100-105. - FRITSCH, F. E. (1912): Freshwater algae of the South Orkneys. Sc. Res. of the Scottish Nat. Antarctic Exp. 3: 95-134. — GAIN, L. (1912): La flore algologique des régions antarctiques et subantartiques (Deuxième Exp. Antarctique française (19081910). Sc. Nat. Doc. Se. 1-202. - KOL, E. (1968): Kryobiologie und Limnologie des Schnees und Eises. I. Kr y o vege tation. Die Binnengewässer 24: 1-216. — KOL, E. (1971): Green snow and ice from the Antarctica. Ann. Hist.-nat. Mus. Nat. Hung. 63: 51-55. — KOL, E. & FLINT, A. E. (1968): Algae in green ice from the Balleny Islands, Antarctica. New Zeeland J. of Bot., 6: 249-261. - LAGERHEIM, G. (1892): Die SchneefJora des Pichincha. Ein Beitrag zur Kenntnis der nivalen Algen und Pilzen. Ber. dtsch. Bot. Ges. 10: 517-534. — WILDEMANN, É. (1935): Observation sur des algues rapportées par l'Expédition antartique de la "Belgica" 1897-1899. Res. Voy. Belgica 1897-1899. Botanique, 3-45. Author's address: Dr. ERZSÉBET KOL Botanical Department Hungarian Natural History Museum Budapest, XIV., Vajdahunyadvár Hungary
