8 ZOOLOGY 
organism, provided however witha nucleus. These amoebulae 
may multiply by fusion, but ultimately they run together and 
form the plasmodia (Fig. 1, A), which form the dominant and 
characteristic phase in the life-history of the Myxomycetes. 
Fia, 2. 
A, A portion of the plasmodium of Bad- E. Amoebulae formed by meta- 
hamia, x 3%, showing a pseudo- morphosis of flagellulae. 
podium (1) commencing to enclose F. Two amoebulae fusing to 
a piece of mushroom stem. After form F”’, 
Lister. G and G’. Stages in the formation of a 
B. Spore of Chondrioderma. three-celled plasmodium. 
C. Spore of Chondrioderma dehiscing. H. A small plasmodium. 
D. Flagellulae which have emerged from (B-H., after Cienkowski.) 
the spores, 
Chondrioderma difforme, the species illustrated in Fig. 2, 
has a small plasmodium, easily visible to the naked eye. This 
species occurs commonly on old bean-stalks. The plasmodia 
