Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 66. (Budapest 1974)

Kol, E.: Trochiscia (Chlorophyta) red snow from Swedish Lapland

Fig. 1. Glúamydomonas sanguinea LAGERH. with gelatinous sheath (x 500). Figs. 2 — 10. Trochiscia americana var. lapponica var. n. (x 1000) : 2 = older cell with smooth cell-wall, 3 = cell with irregularly thickened wall, 4 '— cell with warted cell-wall, 5 = cell-division, the wall of the mother cell is gelatinized, 6 = cell-division, 7 = very young daughter cell,