Myxomycetes of the Miami Valley--to 1895.

1816. Nees, Ch. G. D. Das System der Pilze und Schwamme.

1837. Nees, T. F. L. et A. Henry. Das System der Pilze.

1869. Peck, Charles H. Reports N. Y. State Museum Nat. History--to 1898.

1795. Persoon, C. H. Observationes Mycologicae, Pars prima.

1799. Persoon, C. H. Observationes Mycologicae, Pars secunda.

1797. Persoon, C. H. Tentamen Dispositionis Methodicae Fungorum.

1801. Persoon, C. H. Synopsis Methodica Fungorum.

1844. Rabenhorst, L. Deutschland's Kryptogamenflora.

1884. Raciborski, M. Myxomycetes Agri Krakov. Genera, Species et
Varietates novae.

1888. Raunkiaer, C. Myxomycetes Daniae.

1769. Retzius, A. J. In Handlungen, Kon. Svensk. Vet. Acad.

1890. Rex, George A. In Proceedings Philad. Acad. of Nat. Sciences--to
1893.

1873. Rostafinski, J. Versuch eines Systems der Mycetozoen.

1875. Rostafinski, J. Sluzowce Monografia.

1778. Roth, A. W. Tentamen Florae Germanicae.

1888. Saccardo, P. A. Sylloge Fungorum, vol. vii., _et seq._

1841. Sauter, A. Flora, vol. xxiv., p. 316.

1762. Schaeffer, J. C. Fungi qui in Bav. et Pal. nascuntur--to 1774.

1797. Schrader, H. A. Nova Genera Plantarum.

1890. Schroeter, J. Myxomycetes, in Engler u. Prantl Pflanzenfamilien.

1885. Schroeter, J. Kryptogamenflora von Schlesien, die Pilze.

1801. Schumacher, C. F. Enumeratio Plant. Saell. crescentium.

1805. Albertini, I. and Schweinitz, L. D. de. Conspectus Fungorum.

1822. Schweinitz, L. D. de. Synopsis Fungorum Car. Sup.

1834. Schweinitz, L. D. de. Synopsis Fungorum in America Boreali.

1797. Sowerby, J. English Fungi--to 1809; 3 vols.

1760. Scopoli, J. A. Flora Carniolica--to 1772.

1797. Trentepohl, K. Observations Botanicae,--to Roth, Catalecta
Botanica, Fasc. i.

1833. Wallroth, C. F. Flora Cryptogamica Germaniae.

1787. Willdenow, K. L. Florae Berolinensis Prodromus.

1886. Wingate, Harold, Jour. Mycol. ii., 125.

1889. Wingate Harold, In Proc. Acad. Nat. Sci. Philad.

1890. Wingate, Harold--in Revue Mycologique.

1873. Woronin u. Famintzin, Ueber Zwei neuen Formen von Schleimpilzen.

1885. Zopf, W. Die Pilzthiere oder Schleimpilze.

To these may be added the many contributions on the general subject, as
these are found in all sorts of current botanical literature; cited
everywhere in this volume as occasion offered.

INTRODUCTORY

The Myxomycetes, or slime-moulds, include certain very delicate