64@ tox ` Transactions. 
Holcus lanatus L. On leaves, sheaths, and stems. Herb. Nos. 273, 
318. IIl, oe Turakina ; Weraroa; Kelburn (hae G. H. 8. 
Nov.-Jan., 1920-21. IL, Ш. Ettrick (Otago), A. H. Cockayne! 
10 Feb., 1921. П, III. Hooper's Inlet (Otago), R. B. Tennent! 
21 Feb., 1921 
Lolium multiflorum Lam.  Ruakura (Auckland), A. W. Green! 
9 Jan., 1922 
Lolium perenne L. On leaves. Herb. No. 327. П. Ruakura (Auck- 
land), G. H. C. 28 Feb., 1921. tu (Wellington), G. H. C. 
Dec., 1921. 
Distribution : World-wide. 
The aecidial stage does not occur in New Zealand, so that all 
probability the rust is perpetuated by the uredo pa alone. Viable 
uredospores are to be found on ee lanatus the year aro 
Puccinia coronata was the name first applied by Cordi to a speci 
CEN ERA m 
NE oem 
characterized by the coronate [om of the teleutospore. Nielsen t 
p. 549) showed that when aecidiospores from Rhamnus cathartica were sown 
on leaves of Lolium perenne uredospores were produced, whereas aecidio- 
spores from Rhamnus Frangula failed to infect this host. He therefore 
proposes to separate this latter form from P. coronata and to name it 
Ф, 
Klebahn (1894, p. 258) earried out similar experiments with the teleuto- 
spores from Lolium perenne, sowing them on Rhamnus cathartica, the result 
being the production of aecidia, whereas he failed to produce aecidia on 
R. Frangula. He therefore split P. coronata into two species, retaining the 
and to the form with its aecidial stage on P. cathartica he proposed to give 
the name of P. ve dd. overlooking the fact that this form hed previously 
та coronata Сда. Aecidial stage on Toni Frangula 
L L уласак эз Calamagrostis lanceolata а d P i 
: aru 
3. f T Agrostis stolonifera, A. alba, and A. vulgaris 
4. gropyri—on Agropyron re 
5. f. Holei—on Holous tonsa, ыа mollis 
b. Puccinia Lolii Niels. Aecidial stage on Ramnus cathartica. 
1, f. Avenae—on Avena sativa and А. fatua. 
2. f. Loli—on Lolium perenne. 
3. f. Festucae—on Festuca elatior and F. gigantea 
(Klebahn showed that uredospores from Fest 
would infect Holcus lanatus, H. mollis, and Lolium 
perenne.) 
4. f. Alopecuri—on Alopecurus pratensis, &c. 
5. f. Glyceriae—on Glyceria aquatica. 
Klebahn sided to this list 
г Ho 
lei, 
as he showed са uredospores from Holcus lanatus would infect only Holcus 
lanatus and H. mollis. 
After further cultural work Eriksson (1908) revised his previous work 
and separated P. Lolii into eight biological races. Other workers have 
obtained entirely different results: for example, Carleton (1899), who 
that in North America there is only one host of P. Loli in nature. 
