406 MYCETOZOA 



distinctly from the Fungi (and still more from other plants) ' in all such 

 characteristics as do not belong to all organisms alike. . . . The differ- 

 ence would not be less decided, if the Mycetozoa were without their re- 

 markable amoeboid movements, for such movements are observed in 

 other vegetable cells which have not a firm membrane. The character- 

 istic mark of separation lies in the formation of plasmodes or aggrega- 

 tion of swarm-cells ' (* Comp. Morph.,' p. 443). He farther remarks that 

 the highest forms of the group give no evidence of close affinity with 

 yet higher organisms, and seeks for their relationship with Amoeba. 

 Guttulina, he points out, differs from such forms only by the aggregation 

 of its spores. Guttulina protea (Fay.) (Copromyxa protea, Zopf) even 

 forms solitary spores. This form then links the Amoebae with the more 

 highly differentiated Acrasieae, and these connect with the Myxomycetes. 

 Taking together this connection with the animal kingdom, and the want 

 of connection on the other hand with Fungi (to which they have a merely 

 superficial resemblance) or other plants, we are justified in placing them, 

 as de Bary does, 'outside the limits of the vegetable kingdom.' 



LITERATURE OF MYCETOZOA. 



Baianetzki Influence de la lumiere sur les Plasmodia des Myxomycetes (Mem. Sc. 



Nat. Cherbourg, xix., p. 321). 

 De Bary Die Mycetozoen (Zeitsch. f. wissensch. Zoologie, Bd. x., 1859; and 2nd 



edition, Leipzig, 1864). 



Brefeld Dictyostelium mucoroides (Abh. d. Senckenberg. Naturf. Gesellsch., vii.). 

 Brefeld Untersuch. aus der Gesammtgebiete der Mykologie (Leipzig, 1884). 

 Cienkowski Zur Entwickelungsgesch. d. Myxomyceten(Pringsh. Jahrb. wiss. Bot. , iii. ). 

 Cienkowski Das Plasmodium (ibid. , iii. ). 

 Cienkowski Ueber einige protoplasmatische Organismen (Guttulina). See Just's 



Jahresber. for 1873, p. 61. 



Cienkowski Beitr. zur Kennt. der Monaden (Schultze's Arch. f. micros. Anat., i.). 

 Lister Plasmode of Badhamia and Brefeldia (Ann. of Bot., ii., 1888, p. i). 

 Rostafinski Versuch eines Systems der Mycetozoen (Dissertat. Strassburg, 1873). 

 Rostafmski Slucowce (Mycetozoa) (Paris, 1875). A monograph admirably illustrated, 



but written in Polish. The system in Cooke's Myxomycetes of Great Britain 



(London, 1877) is adapted from Rostafinski's monograph. 

 Stahl Zur Biologic der Myxomyceten (Bot. Zeit., 1884). 



Strasburger Wirkungd. Lichtesund d. Warmeauf Schwarmsporen (Jena, 1878, p. 69). 

 Strasburger Zur Entwickgesch. d. Sporangien v. Trichia fallax (Bot. Zeit., 1884). 

 Van Tieghem Sur quelques Myxomycetes a plasmode agrege (Bull. Soc. Bot. de 



France, 1880, p. 317). 

 Zopf Die Schleimpilze, in Schenk's Handbuch der Botanik, iii. (1887). 



For further literature see De Bary's Comp. Morph., p. 453, and Rostafinski's 

 monograph. 



