Fetch. — The Genus Endo calyx, Berkeley and Broome. 395 
cylinder splits longitudinally into four equal strips : from this and the 
arrangement of the inner hyphae, it is probable that all the carbonized 
hyphae were vertical and parallel. 
This cylinder surrounds and is adherent to an inner stalk of parallel, 
vertical, hyaline or yellowish hyphae, 1-5-2 (jl diam., bound together into 
a solid mass, but separating on soaking in ammonia. This inner stalk 
emerges from the flattened top of the black cylinder and the hyphae remain 
united for a short distance. The inner hyphae are then yellow, while the 
outer are slightly brown in mounted specimens. The inner then separate 
and produce the conidia, while the outer remain united and form a thin, 
yellow, brittle wall, which splits longitudinally at the top. 
The outer wall is identical in structure with that of E. melanoxanthus. 
The present species differs from melanoxanthus in the possession of a dis- 
tinct yellow stilbum-like stalk, surrounded by a close-fitting carbonaceous 
cylinder at the base. The yellow stalk corresponds exactly in structure 
with the base of the pustule of melanoxanthus , and may be regarded 
as a prolongation of the latter ; while the black cylinder is homologous 
with the black hyphae which almost enclose the sunken base in mature 
specimens of melanoxanthus. 
Nothing is yet known about the early stages of this species. The 
black column may possibly arise from the subepidermal pustule after the 
manner of a perithecium, and then open to produce the central, yellow, 
stalked funnel ; or it may be that all the hyphae grow at the same time 
from the pustule and become differentiated in the course of elongation. 
As the black column has not the structure of a perithecium, and shows no 
broken edge at the top, it is probable that the latter view is correct. 
One rather important difference between this species and E. melano- 
xanthus arises in the relation of the fungus to the substratum. The hyphae 
which form the fructification of the latter spring from a narrow base, and 
expand to form the column, while in E. cinctus the hyphae converge 
towards the foot of the column in the tissues of the substratum. 
The crowded conidiophores are simple, and bear spores on short 
alternate lateral pedicels as in E. melanoxanthus , the spore being attached 
in the centre of one of the flat sides. The pedicels are fairly close together 
and the hyphae are extremely fine, so that, in section, the spores appear to 
be arranged in more or less vertical rows. The individual sporiferous 
hyphae have a somewhat zigzag course. The spores (Fig. 17) are at first 
yellowish, and finally black, circular or ovoid, compressed, and thick- 
walled, 9-1 1 x 11-12 ^ : immature spores are covered with minute scattered 
warts, but these cannot be detected on the opaque ripe spores. 
