Jan. 1906 ] 
Cultures of Uredineae in 1905 
15 
failure to secure good aecidia made it impossible to give an 
opinion on the identity of this species of rust, 8 as compared with 
European forms. 
5. Puccinia Caricis-Solidaginis Arth. — Teleutospores 
on Carex sparganioides gathered near Lafayette, Ind., were sown 
April 22 on Aster paniciilatus and again on May 11 on A. panicu- 
latus, A. Drummondii, Ribes rotundifolium , Urtica gracilis, and 
Solidago Canadensis. No infection occurred except on the last 
host, this giving spermogonia May 18 and aecidia May 28 in 
very great abundance. In 1902 cultures of this species were 
made with teleutospores taken from Carex Jamesii and C. stipata. 9 
6. Puccinia Peckii (DeT.) Kellerm. — Teleutosporic 
material on Carex lanuginosa , gathered at Red Cloud, Neb., by 
Rev. Bates, was sown May 19 on Hydrophyllum appendiculatum, 
Steironema ciliatum, and Onagra biennis . On May 26 spermo¬ 
gonia, and May 31 aecidia appeared on O. biennis, the other hosts 
remaining entirely unaffected. This result is a duplicate of that 
obtained in 1904. 10 . 
7. Puccinia Caricis (Schum.) Reb. — Teleutosporic ma¬ 
terial on Carex stipata, gathered near Lafayette, Ind., was sown 
April 18 on Urtica gracilis, and gave spermogonia April 24, and 
aecidia May 1, in great abundance. 
A collection in excellent condition made at Denver, Colo., 
by Mr. Bethel, on Carex aquatilis, was sown on Urtica gracilis 
April 10, giving few but well developed spermogonia April 18, 
and numerous aecidia April 29. It was sown again April 25, 
and gave abundant spermogonia May 1, followed with very 
numerous aecidia May 8. 
Both of these sowings were tried on the evidence of the 
microscopic examination of the collections. It was found that 
the medium-sized teleutospores, and large uredospores found 
intermixed, agreed with those known to belong to this species, 
and the results confirmed the diagnosis. Both collections give 
new hosts for the species. * 11 More interesting still was the 
presence in the Colorado collection of abundant amphispores, 
which agree in every particular with those collected on Carex 
strict a by C. H. Peck in New York, distributed in Thuemen’s 
Myc. Univ., No. 746, and first called Uromyces Caricis Pk., then 
Puccinia Caricis-strictae Diet. This fortunate collection enables 
us to show beyond a reasonable doubt, that the Uromyces Caricis 
8 For record of previous cultures see Jour. Myc. 8 : 53. 1902; 10 : 
11. 1904; and u:58. 1905. 
9 See Bot. Gaz. 55: 21. 1903. 
10 Jour. Mycol. n : 58. 1905. 
11 For previous cultures see Bot. Gaz. 29 : 279. 1900; 55: 16. 1903; 
and Jour. Mycol. 8 : 52. 1902. 
