Presidential Address. T. Petch. 27 
for them a new genus characterised by the possession of multi- 
septate ascospores and a Tetracrium conidial stage. It may be 
objected that genera of ascigerous fungi should not be founded 
on conidial characters, but we have a parallel case in Sphaero- 
stilbe, which is merely a Nectria with a Stilboid conidial stage. 
For this new genus, I propose the name Podonectria, the species 
being Podonectria coccicola (E. and E.), Podonectria Aurantiit 
(v. H.), and Podonectria echinata. 
Zimmermann*, in his paper on scale insect fungi found in 
Java (1go1), described Lisea Parlatoriae on Parlatoria, and 
Broomella Ichnaspidis on Ichnaspis. I have not met with any 
species of either of these genera on scale insects. From Zimmer- 
mann’s description and figure, it is clear that the second of 
these is not a Broomella. 
Among the fungi so excellently figured by the Tulasnesf, 
there is one, Melanospora parasitica, the nature of whose para- 
sitism is doubtful. It is generally supposed to be parasitic on 
entomogenous fungi, and has been recorded on Jsaria, on 
Botrytis Bassiana, and on Cordyceps militaris. But the Tulasnes 
figure it growing on a cockchafer, and it has been recorded as 
parasitic on Lecanium hemisphaericum in Indiat. It has been 
found on Icerya Purchast in Ceylon; in the latter country, it 
often occurs with Cephalosporium, but in several cases it appears 
to have attacked the insect independently of any other fungus. 
In the genera, which are more usually associated with insects, 
viz. Cordyceps and Torrubiella, the number of species recorded 
as occurring on scale insects is comparatively small. In Torru- 
biella there are four species: Torrubiella rubra Pat. and Lagh.§, 
from Ecuador (1893), Torrubtella luteorostrata Zimm.*, from 
Java (1901), Torrubiella brunnea v. Keissl.||, from Samoa (1909), 
and Torrubtella Lecanit Johnston§] from Cuba (1918). In the 
- case of the first three the species of scale insect is not recorded. 
Two species have been collected in Ceylon, on Aleyrodes, and 
Parkin** recorded a gathering on Asfidiotus. This genus has 
not yet been revised. 
In the case of the genus Cordyceps, three species are said to 
occur on scale insects, but very little is known about two of 
them. In 1861, Berkeley and Broome described Cordyceps 
pistillariaefornust}, growing on a scale insect, apparently a 
Lecanium, on Wych Elm at Batheaston. Apparently only two 
* Centralb. f. Bakt., Abt. 2, vi (1901), p. 872. 
f Selecta Fungorum Carpologia. { Ann. Myc., 1x (1911), p. 392. 
§ Bull. Soc. Myc. France, 1x (1893), p. 154. 
|| Micromycetes in Bot. u. Zool. Een, Samoa Inseln, von Karl Rech- 
inger. 
J Mem. Soc. Cubana Hist. Nat. ‘‘ Felipe Poey,” 111 (1918), p. 80. 
** Ann. R.B.G. Peradeniya, 111 (1906), pp. 18, 19. 
tt Ann. Mag. Nat. Hist., Ser. 3, vir (1861), p. 451. 
