Arthur: Cultures of Uredineae in 1909 219 



Mr. E. Bethel, was sown on Lactuca sativa, Artemisia dracuncu- 

 loides, Ambrosia trifida, Grindelia squarrosa and Laciniaria 

 spicata, with no infection. The determination of the host was 

 made by Mr. Theo. Holm. 



5. PucciNiA on Car ex siccata Dewey, collected at Kulm, N. D., 

 by Dr. J. F. Brenckle, was sown on Ambrosia trifida and Carduus 

 undulatus, with no infection. 



6. PucciNiA RUBiGO-VERA Aiict., on HordeuM jubatiim, col- 

 lected at Brookings, S. D., by Mr. O. E. White, was sown on 

 Lycopsis arvensis (on 3 different dates), Heliotr opium curas- 

 savicum (on 3 -dates), Myosotis palusfris (3 dates), Litho- 

 spermum canescens, L. arvense, L. an gusti folium, Hydrophyllum 

 virginicum, Ceanothus americanus, Callirrhoe involucrata, Sym- 

 phoricarpos racemosus, Peialostemon purpurpeum, Laciniaria 

 punctata and Ambrosia trifida, with no infection. 



7. PucciNiA DiSTiCHLiDis E. & E., on Spartina gracilis Trin., 

 collected at Kulm, N. D., by Dr. J. F. Brenckle, was sown on 

 Lepargyraea canadensis, Mimulus ringens, Symphoricarpos 

 recemosus. Poly gala Senega, Grindelia squarrosa and Carduus 

 undidatus, with no infection. 



8. PucciNiA suBSTERiLis E. & E., on Stipa viridula Trin., col- 

 lected at Eldorado Springs, Colo., by Mr. E. Bethel, was sown 

 on Tithymalis arkansanus coloradensis, Arabis Holboellii, Grin- 

 delia squarrosa and Eupatorium serotinum, while another collec- 

 tion with same data was sown on Viola sororia, Mimulus ringens, 

 Myosotis palustris, Aster ericoides and A. multiflorus, all with 

 no infection. 



9. PucciNiA STRiATULA Pcck, on C alaniugrostis canadensis 

 (Michx.) Beauv., collected at Wind Lake, Wis., by Dr. J. J. 

 Davis, was sown on Thalictrum alpinum, T. dioicum, T. pur- 

 purascens, Actaea alba, Phacelia bipinnatifida, Hydrophyllum 

 virginicum and Polygonatum biflorum, with no infection. 



10. PucciNiA viRGATA Ellis & Ev., on Chrysopogon avenaccus 

 (Michx.) Benth., collected at Asheville, N. C, by Mr. F. D. 

 Kern, was sown on Dire a palustris, Viola sororia, Hydrophyllum 

 virginicum, Mimulus ringens, Chelone glabra, Symphoricarpos 

 pauciflorus and Ambrosia trifida, with no infection. Similar 



