102 
57. GrLGEOSPORIUM-LIKE COLLETOTRICIIUM. 
(Colletotrichum glocosporioides, Penz.) 
Pustules erumpent, gregarious, often confluent, black to dark- 
brown, rather discoid. 
Bristles cylindrical, surrounding margin or on disc, rounded at 
apex, sometimes tapering, sparingly septate, dark-brown, 40^u. or 
longer x 4 ft. 
Basidia fasciculate, cylindrical, apex rounded, dilute fuliginous 
at base, 18 x 4/.i. 
Conidia apical, cylindrical, straight, rounded at both ends, 
hyaline, 13-18 X 4-6//. 
On apparently dead twigs of Orange. September, 1892. Burn¬ 
ley, near Melbourne. 
On leaf of Lemon. April, 1898. Cooroy, Queensland (Tryon). 
This agrees well with the Italian species, only the bristles in 
the latter are 40-90 x 5-6//. It is found there very common on 
both surfaces of leaf, but rarely on languid branches. 
The pustules originate beneath the surface and burst the epi¬ 
dermis very irregularly. It may often be recognised by the naked 
eye from the concentric arrangement of the pustules, or by the 
singular depressed form and brown colour of the same. (Figs. 
102, 103.) 
58. BLACK PESTALOZZIA. 
(Pestalozzia funerea , Desm.) 
Pustules scattered, punctiform, black, at first covered, then 
erumpent ; stroma depressed, hyaline ; basidia short, simple, con¬ 
tinuous, hyaline, 20-24 x 2i-3p. 
Conidia oblong-fusiod, 5-eelIod, slightly or not at all constricted 
at septa, three central cells very dark-brown, two terminal cells 
hyaline, 21-24 X 6-9/t., crested with 2-5 spreading, recurved 
hyaline setae, 10-22 X 1 /i. 
On scabs on leaves of Lemon. April, 1898. Cooroy, Queens¬ 
land (Tryon). 
This species has already been found in Queensland on leaves of 
Elaeodendron and Myrtus . Although in this instance it probably 
occurs as a saprophyte, it is suspected of being a parasite at 
times. 
It is readily detected from the very black colour of the pus¬ 
tules. 
P. guepini (Desm.) also occurs on Citrus leaves, but diseased 
leaves are not blistered or swollen in any way. It is known to 
be parasitic and very injurious to the Tea leaves in India and 
Ceylon. (Fig. 104.) 
