angiden. Geb. Borntraeger, Leipzig, 1924, 200.) cir.rho'sus. Gr. cirrhus tawny; M.L. adj. cirrhosus tawny. Vegetative cells: Rods 0.8 by 2.0 to 5.0 microns. Fruiting bodies: Elongate, upright, thick- ened below, slender above, extended to a rounded point, 50 to 100 microns long, 20 microns in diameter at base, light red to flesh-colored. Microcysts about 1 micron. Source: Isolated once from grouse dung from Massachusetts. Habitat: Found in the dung of various animals. Illustrations: Thaxter (op. cit., PI. 31, Figs. 25-27). 3. Chondrococcus itiegalosporus Jahn, 1924. (Jahn, Beitrage zur bot. Protistologie. I, Die Polyangiden. Geb. Borntraeger, Leipzig, 1924, 86.) me.ga.lo'spo.rus. Gr. adj. megas, megale, mega big; Gr. noun spora seed; M.L. noun spora spore; M.L. adj. megalosporus large- spored. Vegetative cells: Not described. Fruiting bodies: About 80 to 160 microns wide, rounded, cushion -shaped, dark flesh- colored. Microcysts 2 microns. Source: Isolated from stag dung near Berlin. Habitat: Found in the dung of various animals. Illustrations: Jahn (ibid., Fig. Y, i to k, page 87). 4. Chondrococcus macrosporus Krze- mieniewski, 1926. (Acta Soc. Bot. Poloniae, 4, 1926.) ma.cro'spo.rus. Gr. adj. macrus long, large; Gr. noun spora seed; M.L. noun spora spore; M.L. adj. macrosporus long- or large- spored. Vegetative cells: Not described. Fruiting bodies: Much like those in Chon- drococcus coralloides, differing in color and in size of microcysts. Microcysts 1.6 to 2.0 microns. Fruiting body yellow or light brown color with long branches. Source: Isolated first from leaves then from soil on rabbit dung. Habitat: Found on decaying organic mat- ter in soil and in the dung of various ani- mals. Illustrations: Krzemieniewska and Krze- mieniewski (ibid., PI. II, Fig. 19). 5. Chondrococcus hlasticus Beebe, 1941. (Iowa State Coll. Jour. Sci., 15, 1941, 310.) blas'ti.cus. Gr. adj. blasticus budding. Vegetative cells: Long, slender, flexible rods, straight or curved to bent, ends rounded to slightly tapered. Gram-negative. 0.5 to 0.6 by 3.0 to 5.0 microns. Fruiting body: Primary: Spherical to subspherical, usuallj^ sessile but occasion- ally with a short stalk or foot; pale pink to bright salmon-pink; 300 to 600 microns in diameter. No outer wall or limiting mem- brane evident. Develops on sterilized rabbit dung in from 3 to 6 days at room tempera- ture. Secondary: Arising as bud-like growth from the primary fruiting body. Develops into irregularly shaped, finger-, coral- or bud-like protuberance. Seldom branched; occasionally stalked but usually sessile on primary fruiting body until latter is utilized in formation of several secondary fruiting bodies. Deep pink to salmon-pink in color. Variable in size and shape; 50 to 150 by 75 to 225 microns. No outer wall or limiting membrane evident. Microcysts: Spherical, thick-walled, highly ref ractile ; 1 .2 to 1 .4 microns in diame- ter. Held together in the fruiting body by the mass of slime. Vegetative colony: Thin, colorless, trans- parent at margin; surface broken by many small ridges or veins. Center smooth, slightly thicker, often showing pale pink color. Fruiting bodies first form at or near center, later distributed irregularly on other parts of colony. Margin composed of active vegetative cells. Physiology: Good growth on mineral salt agar to which has been added such complex carbohydrates as dulcitol, inulin, cellulose, reprecipitated cellulose or starch; starch hydrolyzed, cellulose not destroyed ap- preciably. Can utilize agar as both C and N sources. Best growth on suspensions of killed bacterial cells in agar. Growth in- hibited partially or entirely by arabinose, mannose or maltose.
