6. MOULDY ROT OR BLUE-GREEN MOULD. 
(Penicillium glaucum, Link.) 
On decaying Oranges and Lemons. Common. 
7. MOULDY ROT. 
{Penicillium italicum, Wehmer.) 
On decaying Oranges, Victoria. 
This species resembles P. glaucum , but the spores are ellipsoid, 
and average 4 x 2 hfx. 
8. GREYTSII-GREEN OVULARIA. 
{Ovularia aurantii , n. sp.) 
Erumpent, forming effused greyish-green patches on Orange 
which has become of a uniform continuous dark-ruddy brown, over 
one-half or more of its surface. 
Hypliae standing out, short, simple, septate, tapering towards 
apex where conidia are produced, 2^-3/x. broad. 
Couidia colourless, generally cylindrical and straight, rounded 
at both ends, sometimes gradually tapering towards one end with 
granular contents, 13-15 X 3-3 \fi. 
On Oranges imported from Italy. March, 1899. 
The dark riuldy-brown discoloration of the Orange is first 
noticed, then the erumpent greyish-greeu effused patches of the 
fungus on the discoloured portions. It is distinguished from 
Rainularia by the conidia never being septate. Occasionally 
they appear to be I-septate, but the appearance is duo to the 
division of the protoplasm into two parts. Ovularia has not 
hitherto been recorded on any of the Citrus species. (Figs. 13, 
14.) 
9. RUDDY-BROWN SCAB. 
{Ovularia citri , n. sp.) 
“ Scabs ” of a pale ruddy-brown, sometimes isolated, but 
usually run together, and covered with a fine whitish coat of 
mould. 
Hypliae hyaline, but tinted in the substance of the “ scab,” 
slender, slightly sinuous, septate, branched, and much interwoven, 
branches often at right angles, often vacuolated, and with finely 
granular contents, 1-2/x. broad. 
Conidia terminal, on projecting hypliae, at first colourless, then 
pale yellowish, nearly globular to slightly elliptical, about o/x. 
diameter, or 3-4 X 2g.. 
