Conidia colourless or pale-green, continuous, 1-2—septate, 
spherical, oral, or elliptical, slightly constricted, smaller 7^—9^ X 
4-5i/i., larger ll-24xo^i.; or in tnoniliform chains. 
Coloured hyphae greenish-brown to dark-brown, closely sep¬ 
tate, deeply or slightly constricted, sparingly or copiously 
branched, rigid, 911 /i. broad, bearing similarly coloured conidia, 
usually elliptical, uniseptate, 7i—16 X 
Perithecia intermixed with various other reproductive bodies, 
sea-green to sage-green, appearing black, oblong to oval, or 
variously shaped, rounded and smooth at free end, 112-250 x 
52-112/t. 
Asci cylindric-clavate, sub-sessile, apex rounded, 8-6 or 4 — 
spored, 70-80 x 19-20/t. 
Sporidia brown, oblong, sometimes sub-fusoid, generally obtuse 
at both ends, constricted about the middle, 5-6 septate, often with 
longitudinal or oblique septa, arranged mostly in two rows but 
occasionally in three, averaging 21-24 X 8i-9i/i. 
Paraphyses hyaline, finely granular, elongate-clavate, as long 
as asci, and 9/i. broad towards apex. 
On living leaves of Orange and Lemon, particularly on upper 
surface, also on branches and fruit. All the year round. Vic¬ 
toria, New South Wales, South Australia, Queensland, and 
Western Australia. (Plate III., and Figs. 1, 2, 3, 4). 
2. HERBARIUM MOULD. 
(Eurotium lierbariorum , Link.) 
Perithecia seated on creeping, branched, interwoven, at first 
white, ultimately coloured filaments, spherical, bright sulphur- 
yellow, 150-170/1. diam. 
Asci spherical or sub-spherical, 15-18/x. 
Sporidia 8, crowded ; hyaline, lens-shaped, average 8/i. diam., 
with a groove around it, and briefly radiate-striate on each side. 
On decaying Lemons. Victoria. 
Aspergillus glaucus (Link) was found associated with it, this 
being the conidia! stage. (Figs. 5, 6 ) 
3. ORANGE PYRENOCIIAETA. 
(Pyrenochacta aurantii , n. sp.) 
Forming small, black, rough patches towards base of Orange, 
and showing, when magnified, densely gregarious, black, globular 
perithecia with distinct pores, seated upon a grey and dark sub¬ 
stratum intermixed. 
Perithecia arising from a generally olive-green matrix, consist¬ 
ing of a close network of pallid moniliform filaments forming a 
