89 
Gouidia terminal and lateral, may be at least in chains of two, 
at first ovate to elliptical, colourless or pale-green with finely 
granular contents, finally olive green, smooth, elliptic-oblong, 
1—3-septate, not constricted at septa, 9-15 x 4?j-5i//. 
On both surfaces of green Orange leaves. January, 1899. 
Armadale, near Melbourne, 
The patches generally extend from the margin of the leaf to 
near the midrib, and are of irregular shape. The surface of the 
patch is usually more or less corrugated, and the tissue of the 
leaf is so destroyed that the epidermis is easily lifted with the 
tufts. 
It differs from C. compactum (Sacc.) in being on both surfaces 
of leaf, and the hyphce are branched and septate. (Fig. 57.) 
29. ELEGANT CLADOSPORIUM. 
(Gladosporium elegans , Penz.) 
Spots fawn-coloured, subrotuud to oval, slightly depressed, and 
ruddy-brown towards margin, penetrating entire tissue of leaf, 
varying in size from £th to 1 inch or more ; tufts minute, rounded, 
gregarious, dark olivaceous. 
Hypffie radiating, rigid, pale-green or dark olive, sinuous, 
simple, sparingly septate, 75-85 X 4-5/t. 
Couidia terminal and lateral, pale-green to almost colourless, 
generally uni-septate, sometimes continuous, or 2 to 3 septate, 
elongated elliptic, epispore finely granular, variable iu size, 
14-19 X 4-5//. 
On upper and under surface of green Orange leaves. 
October, 1898. Armadale, near Melbourne. 
The fungus produces a spot right through the tissue of the leaf 
and the tufts appear first on the upper surface, then on the under 
surface. The lateral conidia are produced earlier than the terminal 
conidia, and have fallen away while the latter are still young 
and colourless. (Figs. 58, 59.) 
30. COMMON CLADOSPORIUM. 
(Gladosporium herbarum , Link.) 
On withered tip of Orange leaf. Armadale, near Melbourne. 
31. CITRUS CLASTEROSPORIUM. 
( Clasterosporium citri , n. sp.) 
Mixed with tufts of Cladosporium herbarum on grey patches 
on Lemon leaf. 
I-lyphm creeping, seplate, slightly branched, pale-brown, average 
3^-4//. broad. 
