Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 53. (Budapest 1961)

Halász, M.: The microvegetation of the acrothermae of Harkány

spring wells of Harkány (Strom, Nyt Mag. for Naturvisenskab., 61, 1924, p. 129—132). — Cells with sheath 6—7,8 p in diameter ; colony gelatinous, usually dark brownish-reddish ; sheath hyaline or granulated, often lamellated. Occurrence : a) On the wall of the cooling basin in Harkány ; b) Margitsziget, Budapest; 5 t r 0 m 1924) ; Herkulesfürdő (S t r 0 m 1927) ; the Félix Bath, Nagyvárad (Palik 1949) d) Island of Hawai (Tilden 1910). Gloeocapsa caldariorum Rabenh., 1865 Gloeocapsa montana y caldarii Suringar, W. F. R., Observationes phycol., in floram batavam Leovardiae, 1857, p. 54, T. IV E. — R a b h., Flor. Europ. Alg., II, 1865, p. 37. Dimensions and lamellation of sheath agree with those described for type. Cells without sheath 3—8 p, with sheath 19—30 p. Drouet&Daily (Butl. Univ. Bot. Stud., 12, 1956, p. 138) consider the species, on the basis o. an examination of the original specimens, identical with Palmogloea protuberans (Sm. &Sow.) (K t z., Phyc. Gener., 1843, p. 176). Occurrence : a) On the wall of Spring Well I, and the coling basin in Harkány ; d) Teplitz (Rabenh. 1865); Lower Geyser Basin, Yellowstone Park, N. America (T i 1 de n 1898). Genus : Gloeothece Naegeli, 1849 Gloeothece rupestris (Lyngbye) Bornet, 1880 var. tepidariorum (A. Braun) Hansg., 1892 (Fig. 8) Gloeothece tepidariorum (A. Braun) Lagerh., Öfvers. K. Sv. Vetens. Akad. Förhandr, Stockholm, 40, 1883, p. 44 ; Gloeothece rupestris (Lyngb.) Born b. tepidariorum (A. Br.) Hansg. Prodr. Algenfl. Böhmen, 2, 1892, p. 136, Fig. 46. Specimens occurring in Harkány agree with description published by Hansgirg. Colony dingy olive-brownish, bluish-green, gelatinous, mucous. Vegetative cells elliptical or elongately cylindrical. During division of a characteristical three-dimensional form, deflection of daughter cells from original position within mother cells is observable (Geitler figures a like dividing cell colony, 1930, p. 221, f. 108). Vegetative cells after division may almost be spherical, as described also by Hansgirg (I.e.); such forms of division frequent. Diameter of vegetative cells without sheath 2,8 — 5 p, with sheath 5,6 u ; two or three times as long as broad ; of smaller dimensions than type, in which cell without sheath 5—6 p in diameter (Hans g., 1. c). Sheath colorless, often strongly lamellose. Gollerbach, Koshinskaja&Polianskij unite Gloeothece tepidariorum A. Br., under the type Gloeothece rupestris (Lyngb. Born., with.) Aphanothece pallida (Kütz.) Rabenh. (1953, p. 111). On the other hand, Drouet 6 Daily (Butl. Univ. Bot. Stud., 12, 1956, p. 17) identify it with Coccochloris stagnina Sprengel. According to Brunnthaler's observations and experiments, var. tepidariorum Hansg. differs only physiologically from the type. Since the desscription of G. rupestris does not differ from that of G. rupestris ß. tepidariorum Hansg., the variety can be separated from the type on a physiological basis only, and thus it may be assumed that the species recorded in literature by the name G. rupestris, occurring in hothouses and the hot vapours of the thermae, belong to var. tepidariorum. Occurrence : a) On the walls of the springs and the thermal cooling basins in Harkány ; d) Yellowstone Park, N. America (Copeland 1936).