28 Department Circular 195, U. S. Dept. of Agriculture. 



458. P. helianthi S.— Ill, on Helian- 



thus tracheliifolius. 

 Crawfordsville, Ind., Oct. 3, 

 1890, E. M. Fisher. Dupl. 1902 

 Myc. Ex. 121k as P. tanaceti. 



459. P. helianthi S.— II and III, on 



Helianthus tracheliifolius. 

 Brookfield, Ind., Nov., 1890, 

 E. M. Fisher. Dupl. 1902 Myc. 

 Ex. 121k as P. tanaceti. 



460. P. helianthi S. — I, on Helianthus 



tuberosus. 

 Stockton, Kans., May 31, 1902, 

 E. Bartholomew. 



461. P. helianthi S— III, on Helian- 



thus tuberosus. 

 Superior, Nebr., Sept. 11, 1914, 

 J. M. Bates. 



462. P. hemisphaerica Lindr. — I, on 



Lactuca pulchella. 

 Kulm, N. Dak., June, 1916, 

 J. F. Brenckle. 



463. P. heterospora B. and C. — III 



and X, on Abutilon inca- 

 num. 

 Ithaca, N. Y., Aug., 1901, W. 

 H. Long. 



464. P. heterospora B. and C. — III, 



on Abutilon theophrasti. 

 Emporia, Kans., Oct. 9, 1905, 

 J. E. Bartholomew. 



465. P. heterospora B. and C. — III 



and X, on Sida sp. 

 Bard, Calif., Nov. 8. 1911, R. 

 M. Meade. 



466. P. heterospora B. and C. — III and 



X, on Sida spinosa. 

 Charleston, Mo., Sept. 25, 

 1889, M. B. Waite, 470. 



467. P. heterospora B. and C— III 



and X, on Sida spinosa. 

 Starkville, Miss.. Sept. 14, 

 1894, S. M. Tracy. 



468. P. holboellii (Hornem.) Rostr. — 



III, on Arabis holboellii. 

 Fort Douglas, Utah, May 10, 

 1918, J, F. Brenckle. 



469. P. holcina Eriks. — II, on Holcus 



lanatus. 

 Tacoma, Wash., Aug. 18, 1901, 

 E. W. D. Holway. 



470. P. holcina Eriks. — II, on Holcus 



lanatus. 

 Woodside, Calif., June 29, 

 1918, E. T. and Mrs. E. T. Bar- 

 tholomew. 



471. P. huberi Henn. — II, on Panicum 



trichoides. 

 Maricao, Porto Rico, Jan. 10, 



1912, F. L. Stevens. 



472. P. hyssopi S. — III, on Agastache 



scrophulariaefolia. 

 Swago Mountain, Pocahontas 

 County, W. Va., Aug. 20, 1902, 

 W. A. Kellerman. 



473. P. inflata Arth.— Ill, on Stig- 



maphyllon periplocifolium. 

 Baracoa, Cuba, Mar. 13, 1903, 

 E. W. D. Holway. Type coll. 

 Dupl. N. A. Ured. 42. 



474. P. intermixta Pk. — III, on Iva 



axillaris. 

 Bellefourche, S. Dak., Sept. 3, 



1913, C. R. Ball. 



475. P. invaginata Arth. and John- 



ston — II, on Gouania lupu- 

 loides. 

 Guanica, Porto Rico, Feb. 3> 

 1913, F. L. Stevens. 



476. P. iridis Wallr. — II, on Iris versi- 



color. 

 Newport, R. I., Oct. 18, 1890, 

 H. M. Richards. 



477. P. iridis Wallr. — II, on Iris versi- 



color. 

 Bradley, Me., Oct. 13, 1899, 

 P L. Ricker. 



478. P. jonesii Pk. — I, on Leptotaenia 



multifida. 

 Near Fort Douglas, Utah r 

 Apr. 28, 1918, J. F. Brenckle. 



479. P. jonesii Pk. — III, on Leptotae- 



nia multifida. 

 Fort Douglas, Utah, May 30, 

 1918, J. F. Brenckle. 



480. P. kansensis Ell. and Barth. — 



III, on Buchloe dactyloides. 

 Saline River, Ellis County, 

 Kans., Sept. 9, 1895, E. Barthol- 

 omew. 



481. P. lantanae Farl. — III and X, on 



Lantana involucrata. 

 Boqueron, Porto Rico, Feb. 15, 

 1913, F. L. Stevens. 



