Page:Bergey's manual of determinative bacteriology.djvu/901

 Fruiting bodies: Cysts bright orange-red or red, 25 by 35 microns, elongate, rounded, on a white pointed stalk, rigid and persist- ent on substratum, rods also in stalk. Short- ened rods in cyst 3 to 5 microns. Cysts some- times pear-shaped, caducous. Source: Isolated from rabbit dung from Massachusetts. Habitat: Found on decaying organic mat- ter in soil and in the dung of various ani- mals. Note: A variety of this species was origi- nally described as an independent species by the Krzemieniewskis (loc. cit.). However, further study of this organism by the same workers (Bull. Intern. Acad. Pol. Sci. Let- tres, No. 1-10, Serie B (I), 1946, 46) revealed that the stalks were composite. Since the cysts correspond exactly in shape, size and color to those of Podangiiim gracilipes, the organism is evidently a composite form of P. gracilipes, the stalks being partly fused. Illustrations: Thaxter {op. cit., 1897, PI. 31, Figs. 20-24), Quehl (Cent. f. Bakt., II Abt., 16, 1906, PI. 1, Fig. 12), Jahn (op. cit., 1924, PI. II, Figs. 19-20) and Krzemieniew- ski (Acta Soc. Bot. Poloniae, 4, 1926, PI. V, Fig. 54). 4. Podangiutn boletus (Jahn, 1924) Krzemieniewska and Krzemieniewski, 1946. (Melittangium boletus Jahn, Beitrage zur bot. Protistologie. I, Die Polyangiden. Geb. Borntraeger, Leipzig, 1924, 78; Krzemie- niewska and Krzemieniewski, Bull. Intern. Acad. Pol. Sci. Lettres, No. 1-10, S^rie B (I), 1946, 36.) bo.le'tus. L. noun boletus a kind of mush- room. Vegetative cells: No description. Fruiting bodies: Cyst stalked, mush- room-like, white when immature then yel- lowish flesh-colored, finally yellowish brown to nut-brown; when dried, more reddish brown. Width of cyst about 100 microns, height 40 to 50 microns, length of white stalk about 40 microns. Sometimes the cyst is smaller and spherical (50 to 60 microns in diameter), sometimes there is a fusion of neighboring cysts, occasionally the stalk is abortive. The resting cells are 0.5 by 3.0 to 4.0 microns and are arranged within the cyst in a characteristic manner, standing at right angles to the membrane; on germina- tion the membrane is left colorless and can be observed to have a honey-combed struc- ture caused by the impingement of the tips of the oriented resting cells against it. Source: From the dung of herbivores from Germany and Denmark. Habitat: Found on decaying organic mat- ter in soil and in the dung of various ani- mals. Illustrations: Jahn (op. cit., PI. 2, Figs. 17-18; Fig. B, page 11; C-F, page 23; 0-Q, page 43; T-U, page 55) and Krzemieniewska and Krzemieniewski (Acta Soc. Bot. Po- loniae, 4, 1926, 1, PI. V, Figs. 55-56). Genus IV. Chondroniyccs Berkeley and Curtis, 1874- (Berkeley and Curtis, in Berkeley, Introduction to Cryptogamic Botany, London, 1857, 313 (illustration but no description); Berkeley (description). Notes on North American Fungi, Grevillea, 3, 1874, 97; see Berkeley and Curtis, in Saccardo, Sylloge Fungorum, 4, 1886, 679.) Chon.dro'my.ces or Chon.dro.my'ces. Gr. noun chondrus cartilage, gristle; Gr. noun myces fungus; M.L. masc.n. Chondromyces cartilaginous fungus. Cysts compactly grouped at the end of a colored stalk (cj'stophore). C3stophore simple or branched. The type species is Chondromyces crocatus Berkeley and Curtis. Key to the species of genus Chondromyces. I. Vegetative rods are even cylinders with blunt, rounded ends. 1. Chondromyces crocatus. II. Vegetative rods of uneven width with tapering ends. A. Cysts not in chains. 1. Ripe cysts not attached to stalk by pedicel or stipe.