156 Transactions British Mycological Society. 
dochium, the conidiophores occurring in small clusters here and 
there on the byssoid stroma. The conidiophores resembled those 
figured by Sawada, and the conidia were either slightly curved, 
or strongly and equally curved, or unequally curved and soine- 
what hook-shaped, stout, three-septate, with obtuse tips, 14— 
21 X 3°5-4p. This specimen was undoubtedly Fusarium epi- 
coccum. Sawada’s species has the same conidiophores and 
conidia, but his measurements of the length of the conidia are 
greater. The latter difference might be accounted for, if the 
measurements were taken along the curve. On the available 
evidence, it would seem that Fusarium Aspidioti is identical 
with Fusarium epicoccum. 
The equally-curved, or horse-shoe-shaped conidium exactly 
resembles the small curved conidium which often occurs with 
the perithecia or synnemata of Sphaerostilbe aurantiucola, and 
has been found in one gathering of Sphaerostilbe flammea. This 
suggests that either Fusarium epicoccum is a stage of Sphaero- 
stilbe, or that the small Fusarium conidium found with the 
Sphaerostilbe is intrusive. Against the latter supposition, there 
is the fact that these conidia are not found in association with 
other species of scale insect fungi, as might be expected if their 
occurrence were accidental. And against the former, no sporo- 
dochia of Fusarium epicoccum have been found in company 
with Sphaerostilbe auranticola, and, with one exception, all the 
gatherings of Fusarium epicoccum do not bear any other fungus. 
The exception is the specimens from Formosa referred to above, 
and in that instance the mixture of fungi on the leaf prevents 
any deduction. 
Fawcett described what he considered to be a new species of 
Microcera in his paper on the Fungi parasitic on Aleyrodes citri 
(1908). He stated that the fungus formed a fringe of delicate, 
white hyphae growing outward from the edge of the scale, and 
producing one-, two-, or three-celled conidia, oval to fusiform in 
shape. Afterwards pinkish spore masses, made up of a compact 
mass of lunate conidia were formed on the edge of the scale. 
The first conidia measure 7-12 x 3; the lunate conidia are 
acute at both ends, three- to five-septate, and measure 28-40 x 
3°5-5 pw, with a few, 52 py. 
In a specimen from Fawcett, the conidiophores form a fringe 
round the scale: they are up to 100 p long, with distant, solitary, 
lateral branches and terminal conidia. The conidia (Plate V, 
fig. 12) are straight, or slightly curved, subcymbiform, ends 
acute, three- to four-septate, 16-50 x 4-6 pw. 
This species is a Fusarium, but distinct from the foregoing. 
It may be known as Fusarium Aleyrodis. 
