PLATE LXXVII 
a, Part of a cross section of a sweet-potato root, showing the relationship of Moni- 
lochaetes infuscans to the epidermis of the host; 
b, Germination of a fragment of mycelium of M. infuscans , showing the germ tube 
which is first produced and upon which conidia are borne; 
c, d, e y f, g, h, i , and t, Different stages in the development of the spore and the 
chain of conidia; 
o,j, k, and p, Protruding hyaline tube at the tip'of the conidiophore on which are 
borne the conidia; this form of fruiting is not common; 
l, n, and w, Differentiation of the coarser dark mycelium, and the finer hyaline to 
subhyaline hyphae; 
u, Attachment of the conidiophore to the mycelium; 
r, Conidiophore-bearing mycelium, being part of u; 
m, q, s y v, x , y t and z, Different stages in the germination of the conidia of M. 
infuscans. 
