[Vol. 9 
230 
Journal of Mycology 
Exp. 80. 
Exp. 83. 
Exp. 84. 
Exp. 85. 
Evp. 86. 
Exp. 87. 
Exp. 119. 
Exp. 120. 
Exp. 159. 
Exp. 160. 
Exp. 99. 
March 20. Same to Erigeron annuus (L) .Pers. No infection. 
March 29. Same applied to Carduus lanceolatns L. No in¬ 
fection. 
March 29. Same to Chrysanthemum indicum Hort. No in¬ 
fection. 
March 29. Same to Taraxacum erythrospermum Andrz. No 
infection. 
March 29. Same to Erigeron annuus (L.) Pers. No in¬ 
fection. 
March 29. Same to Lactuca virosa L. No infection. 
April 11. Same to Carduus lanceolatus L. No infection. 
April 11. Same to Carduus altissimus L. No infection. 
May 5. Same to Carduus lanceolatus L. No infection. 
May 5. Same to Carduus altissimus L. No infection. 
March 30. Aecidiospores from Puccinia cirsii-lanceolati 
Schroet., applied to Carduus lanceolatus L. No infection. 
PUCCINIA HELIANTHI Schw. from HELIANTHUS AM- 
BIGUUS (E. & G.) Britt., H. ANNUUS L., H. DECA- 
PETALUS L. and H. MOLLIS Lam. 
This species has proven more or less refractory in the hands 
of recent experimenters. In Europe Woronin, as long ago as 
1872 published interesting inoculation experiments, in the Bo- 
tanische Zeitung No. 38 & 39, 30 Jahrgang, (Sept. 20 & 27), 
(Aus dem russischen Originate ausziiglich mitgetheilt), which 
he executed at St. Petersburg, Russia, the cultivated Helianthus 
annuus L. in that country being an important farm crop. His 
main purpose was to determine whether this prevalent and very 
damaging species of Rust was the same as that occurring on 
other Composite of that region, and which he rightly decided in 
the negative. His cultures also were designed to show whether 
the Rust on “Erdbirne,” Helianthus tuberosus, (Puccinia helian- 
thorum Schw.) was the same as the “Sonnenblume” Rust (P. 
helianthi Schw.). He states that his experiments led him to the 
conclusion that the two are entirely different, an opinion also 
shared by de Bary based on his own cultures. 
This matter was taken up recently by Ernst Jacky, who re¬ 
ports his results in the Centralblatt fur Bakteriologie, Parasi- 
tenkunde und Infektionskrankh. 2 Abt. 9:802, 6 Dec. 1902. He 
shows that Puccinia helianthi is an aut-eu-puccinia — the pycni- 
dia, aecidia, uredo and teleutospores produced by sowings of tel- 
eutospores from Helianthus annuus, on H. annuus, H. cucumer- 
ifolius, and H. californicus, but the species not able to live on H. 
tuberosus, H. maximiliani, H. multiflorus, H. scaberrimus, and H. 
rigidus. 
In this country Carleton reported work with this Rust, in 
Science N. S. 13:250, 15 February 1901. His words are as fol- 
