100 Transactions British Mycological Society. 
Microcera tasmaniensis McAlp. and Microcera Mytilaspis McAlp. 
differ generically from Muicrocera and the foregoing species. 
Microcera rectispora Cke. and Massee is Tetracrium. Mucrocera 
pluriseptata Cke. and Massee, which was said to grow on 
Calocera, is on a scale insect, the supposed Calocera being the 
effete Microcera synnemata; this species is Microcera coccophila 
Desm. 
PSEUDOMICROCERA. 
The second type of conidial fructification which is common 
on scale insects in the tropics occurs on Lepidosaphes (Myti- 
laspis), Aspidiotus, Fiorinia, Aonidia, etc. It was named 
Microcera Fujikurot by Miyabe and Sawada on specimens from 
Formosa in 1913, and Microcera Merrillia by Sydow on speci- 
mens from the Philippines in 1914. In Florida, it has generally 
been assigned to Microcera coccophila Desm., and the majority 
of the specimens distributed from Florida to European herbaria 
under that name are Pseudomicrocera. It is figured as Microcera 
coccoplila by Fawcett in Fungi parasitic on Aleyrodes citri, 
fig. 14, and by Parkin as Microcera (figs. 62-66). As it is a 
common fungus, it may be expected to have been named in 
the earlier days of mycology without reference to its real host, 
but it has not been found among the species of Fusarium in 
Herb. Kew or Herb. British Museum. The earliest name yet 
found for it is Aschersonia Hennings Koorders (type specimen 
in Herb. Berlin examined), described from specimens from Java 
in 1907. 
The mature perithecial stage of this species has been collected 
in Brazil, Paraguay, Cuba and Ceylon, and immature perithecia 
have been found in a specimen from Mauritius. These are 
Nectria diploa B. and C.; the type specimen of the latter contains 
effete Pseudomicrocera sporodochia. 
It has not been found possible to differentiate between the 
specimens of Pseudomicrocera from different countries, with the 
exception that specimens from West Africa have much longer 
spores than the others. For the present, they must all stand as 
Pseudomicrocera Henningsii (Koord.), while the West African 
form may be known as var. longispora. It is probable, however, 
that when further specimens of the Nectria stage have been 
collected, Pseudomicrocera Henningsii will be found to be a 
collective species. 
The fungus (Plate III, figs. g-12) forms a thin, but compact, 
stroma, sometimes glabrous and shining, either at one side of 
the scale, or as a narrow margin all round it. In some cases, 
e.g. on Aonidia (Plate III, fig. 9), the stroma also grows centri- 
petally over the scale. From this stroma there arise conidial 
fructifications in varying numbers, In a few instances, nostroma 
