Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 67. (Budapest 1975)
P. Komáromy, Zs.: Algological investigations of Hungarian forest soils III. Soil algal surface communities in Mts. Mátra
DIATOMOPHYCEAE Hantzschia amphyoxis (EHR.) GRTJN. (Fig. 11) — The valves are concave in the middle of one side and convex on the other with rounded poles. The cells are 54—70 pun long and 10—13 pim wide in the middle. The transversal striations are parallel, there are 15—20 in 10 pim. Occurrence : on moist soil near Mátrafüred. Navicula mutica KÜTZ. (Fig. 12) — The valves are oval with rounded apices, they are 13—20 pim long and 7—8.5 pim wide. The axial area is narrow and linear. The central area is circular-rectangular. There are 15—18 radial transapical striae in 10 pim, they are punctate. Occurrence: on soil surface near Mátrafüred and on footpath on Mt. Som. Navicula gibbula CLEVE (Fig. 13) — The valves are elliptic with widely rounded apices. The cells are 26—34 pim long and 6—10 pim wide. The axial area is narrow and linear, widening in the middle, due to the regular shortening of the central striae, to form an elliptical central area. The transapical striae are slightly radial at the centre becoming parallel at the poles. The striae are punctate, there are 15—16 striae in 10 pim. Occurrence: on soil surface near Mátrafüred. Pinnularia borealis EHR. (Fig. 14) — The valves are linear-elliptic with slightly concave or straight sides. The apices are widely rounded. The cells are 24—38 pim long and 11—13 pim wide. The axial area is small, widening in the middle. The raphe is linear, it is becoming filiform near the poles. The transapical costae are 4—5 in 10 pim. They are parallel or slightly convergent, regularly shortening at the centre. Occurrence: Tariska meadow near Parádóhuta and near Mátrafüred. Pinnularia subcapitata GREGORY (Fig. 15) — The valves are linear-elliptic or lanceolate with slightly concave or straight sides. The cells are 25—30 pim long (to 50 pim) and 5—6 pim wide. The axial area is narrow. The raphe is filiform near the poles. The central area may form a transverse fascia of varying width. There are 14—16 transapical striae in 10 pim, slightly convergent at the centre. Occurrence: Tariska meadow near Parádóhuta. References GEITLER, L. (1932): Cyanophyceae. — RABENHORT'S Kryptogamen-Flora, 14, Leipzig. PASCHER, A. (1939): Heteroconten. — RABENHORT'S Kryptogamen-Flora, 11, Leipzig. PASCHER, A. (1913—1930): Die Süsswasser-Flora Mitteleuropas, 1—11. — Jena. Author's address: Zs. P.-KOMAHOMY Botanical Department Hungarian Natural History Museum H-1146 Budapest, Vajdahuny ad vár Hungary Figs. 7—15. — 7 = Keratococcus bicaudatus (HANSG.) B. PETERSEN — 8 = Oocytis asymmetrica W. WEST — 9 = G hlorocloster simplex PASCH. — 10 = Monodus subterranea B. PETERSEN — 11 = Hantzschia amphyoxis (EHR.) GRTJN. — 12 = Navicula mutica KÜTZ. — 13 = Navicula gibbula CLEVE — 14 = Pinnularia borealis EHR. — 15 — Pinnularia subcapitata GREGORY. — In the figures 10 pim is equal with 20 mm.
