Boros István (szerk.): A Magyar Természettudományi Múzeum évkönyve 8. (Budapest 1957)

Kol, E.: On the snow vegetation of the Grecian Mountains

One of the furthest ranging cryobionts, frequent also on the snow of the Bulgarian mountains. Tetraedron valdezii Kol (Fig. 5—6.). I have described this algal organism from the snow of Alaska. They are cells with thick walls, of a petita- or hexagonal shape, of 5 fi diameter. The plants originating from the snow of the Smolika are smaller than the ones from Alaska. A Tetraedron pachydermum var. minor Reinsch. of bigger measurements was found also in the Bulgarian mountains (Kol. 1956). Trochiscia nivalis Lagerh. (Fig. 12—13) I found it only in the snow samples of the Smolika, the cells had 20 p diameters. Trochiscia nivalis is known from the snow surfaces of both the northern and the southern hemispheres ; it was first described by L a g e r h e i m from the Andes, and was found also in the Bulgarian mountains. Xanthophyceúe Ophiocytium capitatum Wolle (Fig. 15) The cells originating from the snow of the Smolika are somewhat smaller than the ones described by Wolle, they are 4 p broad and 13 p long. It is a cryoxenous microorganism, and probably happened on to the snow surface from the adjacent areas. II. Fungi. Chionaster bicornis Kol (Fig. 10—11) I described this nival fungus from the snow of Alaska ; the specimens found in the snow of the Smolika are 1/3 longer than the Alaskan ones, 5—7 p broad and 75—80 p long. Both Chionaster nivalis and Chionaster bicornis were found in the Bulgarian mountains, whilst only Ch. bicornis was present in the snow samples from Greece. Selenotila nivalis Lagerh. (Fig. 16) This nival fungus was described by L a g e r h e i m from the snow of the Andes. It was found in several snow surfaces in Europe ; I found it in samples collected at 2200 m a. s. I., in the snow of the Taygetos.