BY D. McALPINE. 
459 
Uromyces amygdali, Cooke, very abundant of late years 
on the foliage of the peach and allied trees in Southern 
Queensland. 
Weed— Fungi and Fungicides. New York, p. 65, 1894. 
Plum-leaf Rust — Puccinia pruni-spinosce. Only men- 
tioned on plum leaves. 
Pierce — Prune Rust : Journal of Mycology, vii., No. 4, p. 354, 
1894. Affecting prune, plum, peach, nectarine, apricot, 
cherry and almond. 
Ammoniacal copper carbonate effectual for treatment. 
McAlpine — Spraying for Fungus Diseases. Guides to Growers, 
No. 15. Dept. of Agriculture, Victoria, p. 8, 1894. 
Improved form of Bordeaux Mixture a preventive for 
this rust. 
EXPLANATION OF FIGURES. 
(Magnified 600 dia. except fig. 14.) 
Plate xxxi. (lower division of Plate). 
Fig. 1. — Puccinia primi, Pers., from Prunus sp., United States. 
a, uredospore yellowish-brown, closely echinulate; b, paraphysis, pale 
lemon yellow and long-stalked: c, deep dark brown teleutospores 
studded with short bluntish spines. 
Fig. 2. — Uredospores and teleutospores on peach leaf from Queensland — 
June. 
a, uredospore, yellowish-brown, average twice as long as broad; b, 
teleutospore, dark brown, but somewhat translucent; c, lower cell of 
teleutospore detached, showing rounded top. 
Fig. 3. — Uredospores and teleutospores of same, mounted dry. 
a, group of uredospores, individuals selected from different parts 
of field; b, group of teleutospores found together. 
Plate xxxn. 
Fig. 4. — Uredospores (a) with persistent pedicels and paraphyses (b) from 
peach leaf in own garden — June. 
Fig. 5. — Germinating uredospore from peach leaf in own garden— June. 
There are two germ-tubes, but one is in abeyance. 
