1893.) The Organism of Leguminous Tubercles, 265 
the Myxomycetee. Infact Phytomyxa was erected to represent 
exactly the morphological characters which we find present in 
the fungus in the tubercles. 
Laurent, probably from the analogy of the form of some of 
the bacteroids and the forked individuals in his artificial cul- 
tures to the various stages of longitudinal division, as Metchni- 
koff'** terms it, of Pasteuria ramosa, places it in the family 
Pasteuriacee. There does notseem tobe any good evidence that 
longitudinal division occurs in the organism of the tubercles, 
ais described for Pasteuria, but that these forked forms are 
tived in an entirely opposite manner, from that which ob- 
tains in Pasteuria, ¢. e., by growth instead of longitudinal 
division, or what seems, more properly speaking, from Metch- 
nikoffs descriptions to be a stellate or radiate division, be- 
ginning with numerous invaginations upon the external sur- 
face and Proceeding toward the center until finally the quad- 
se and octants present a division approaching the longitu- 
It still remains to note certain remarkable phenomena ob- 
he Present writer in one of the cell cultures of the 
leur: - € organism. The microscope was focussed upon 
tve BE viduals representing various lobed forms to ob- 
ti ‘gl development. Sketches were made of the posi- 
Ttain hy made, of the dense portions of protoplasm at 
Phenomenon h near the periphery. The most remarkable 
§ the for; Owever, was the fact that one of the individ- 
the union om, Of Which might be described as representing 
clavate bodies by their larger ends, was 
gishly as if drawn by something attached 
the field of th °r ten to fifteen minutes it moved about within 
“ombined with microscope with a slow oscillatory movement 
fom yj the progressive movement, when it disap- 
Possibility of eae hese observations have suggested the 
the individy l © formation of zoospores within the larger of 
cilarpements of 1 artificial cultures and in the buddings or 
the hyphae within the tubercle. 
Pasteur 11 (1888). 165-170, 
4. Institut 
