FUNGOID PESTS OF CULTIVATED PLANTS. 167 



The parasite occurred on leaves of Hoy a and on ^Eschynanthus. 

 Apparently the same species has also occurred on leaves of Orchids at 

 Glasgow. 



We can only advise strict burning of all diseased leaves. 



Sacc. Syll iii. 3707 ; Grevillea, xix. 42. 



Two other species of Anthracnose are recorded on Hoya, in Italy, 

 under the names of Gloeosporium sphcerelloides and Glceosporium 

 macropus. 



TEA AND COFFEE PESTS. 



The fungoid pests of Tea and Coffee shrubs are not of much interest 

 to the home horticulturist, although of considerable importance in the 

 tropics, the Ceylon Coffee disease especially, Hemileia vastatrix (Berk.), 

 having caused immense damage in the plantations, not only of Ceylon, 

 but in Southern India and in tropical South America. So also has the 

 Coffee leaf -rot, Pellicularia Koleroga (Cooke), in Southern India. 



The Tea shrub is liable to the attacks of Pestalozzia Guepini, which 

 is described above. 



Gard. Chron. Oct. 25, 1879, fig. 87. 



AZALEA LEAF-EOT. 



Pestalozzia longiseta (Sacc.). 



This species was first found in Italy on living leaves of a species of 

 Rubus, but in this country it has been found on Azalea leaves. The 

 spots are rufous, margined by a black line, on which are seated the point- 

 like pustules, which are themselves black, covered some time by the 

 cuticle. The conidia are almost fusiform, pointed towards each end 

 (20 x 8 /j), divided by four transverse septa. The three central cells are 

 coloured dark brown, the two extreme cells small and colourless. From 

 the upper cell spring three very long hairlike processes (30-40 x 1 p). 

 The lower cell is attached to a slender hyaline pedicel. 



Like Anthracnose, this is a deeply seated endophytal disease, and all 

 that can be done is to prevent its spreading. 



Sacc. Syll. iii. 4115 ; Grevillea, xv. p. 19. 



Another leaf -spot, of an ordinary kind (Septoria Azalea), has been 

 recorded in Italy, and is just of the kind that is likely to spread. 



A rust on Azalea has been known in North America ( Uredo Azalea) 

 for very many years, but does not appear to have done much mischief. 



JASMIN CHAIN MOULD. 

 Chromosporium pactolinum (Cooke), PI. XV. fig. 22. 



First described under the name of Oidium pactolinum, when it was 

 found on living leaves of Jasminum Sambac, forming a thin stratum, as 

 if sprinkled with gold-dust or chrome powder. The threads, if any, were 

 not to be detected, the powder consisting of the nearly globose conidia, 



