List of Fungi Prepared for Exchange. 



33 



573. P. polygoni-amphibii P. — III, on 



Polygonum sp. 

 Aberdeen, S. Dak.. Aug., 1895, 

 comm. D. Griffiths. 



574. P. polygoni-amphibii P. — II, on 



Polygonum acre. 

 Eustis. Fla., Apr. 6, 1889, L. M. 

 Underwood. 



575. P. polygoni-amphibii P. — III, on 



Polygonum amphibium. 

 Spout Run, Alexandria Coun- 

 ty, Va., Oct., 1889, M. B. Waite. 



576. P. polygoni-amphibii P. — III. on 



Polygonum amphibium. 

 Alexandria, Va., Oct., 1890, 

 M. B. Waite. 



577. P. polygoni-amphibii P. — III. on 



Polygonum amphibium hart- 

 torightii. 

 Billings. Mont., D. B. Swingle. 



578. P. polygoni-amphibii P. — II and 



III, on Polygonum amphib- 

 ium hartirrightii. 

 South Chicago, 111., Sept. 7, 

 1889, M. B. Waite. 



579. P. polygoni-amphibii P. — II, on 



Polygonum lapathifolium. 

 London. Ontario. Canada, 

 Aug. 29, 1910, J. Dearness. 



580. P. polygoni-amphibii P. — III, 



on Polygonum muhlenbergii. 

 Huron, S. Dak., Sept., 1897, 

 D. Griffiths. 



581. P. polygoni-amphibii P. — II. on 



Polygonum scandens. 

 Middlegrove, 111., Sept. 21, 

 1907, E. Bartholomew. 



582. P. polygoni-amphibii P. — III, 



on Polygonum virginianum. 

 Washington, D. C, Aug. 8, 

 1889, D. G. Fairchild. 



583. P. polygoni-amphibii P. — II and 



III, on Polygonum virgini- 

 anum. 

 Rock Creek Park, Washing- 

 ton, D. C, Aug. 25, 1889, M. B. 

 Waite. 



584. P. polygoni-amphibii P. — III, 



on Polygonum virginianum. 

 Lansing, Mich., Sept. 6, 1889, 

 M. B. Waite. 



585. P. polygoni-amphibii P. — III, 



on Polygonum virginianum. 

 Mount Carmel, 111., Sept. 27, 

 1889, M. B. Waite. 



586. P. polygoni-amphibii P. — II 



and III, on Polygonum vir- 

 ginianum. 

 East Lansing, Mich., Aug. 9, 

 1891, W. J. Beal. 



587. P. polygoni-amphibii P. — III, 



on Polygonum virginianum. 

 Marlinton, W. Va., Aug. 12, 

 1902, W\ A. Kellerman. 



588. P. porteri Pk. — I, on Veronica 



cusickii. 

 Paradise Valley, Mount Rai- 

 nier, Wash., Aug. 22, 1901, E. W. 



D. Holway. 



589. P. pringsheimiana Kleb. — III, 



on Car ex sp. 

 Janesville, Wis., Sept. 15, 

 1917. E. Bartholomew. 



590. P. pringsheimiana Kleb. — II 



and III, on Carex laxiflora-. 

 Decorah, Iowa, Nov. 20, 1892, 



E. W. D. Holway. 



591. P. pringsheimiana Kleb. — III, 



on Carex laxiflora blanda. 

 Long Pine, Nebr., Oct. 30, 

 1902, J. M. Bates. 



592. P. pringsheimiana Kleb. — I, on 



Ribes gracile. 

 Weeping Water, Nebr., June 

 1, 1890, comm. M. A. Carleton. 



593. P. pringsheimiana Kleb. — I, on 



Ribes grossularia. 

 McLean, N. Y., June 15, 1912, 

 B. B. Higgins. 



594. P. pringsheimiana Kleb. — I, on 



Ribes longiflorum. 

 Stockton, Kans., June 6, 1913, 



E. Bartholomew. Dupl. F. Col. 

 4147 ; N. A. Ured. 844. 



595. P. prionosciadii Lindr. — III, on 



Coulterophytum laxum. 

 Chapala, Mexico, Sept. 19, 

 1899, E. W. D. Holway. Dupl. 



F. Col. 3463. 



596. P. prionosciadii Lindr. — III, on 



Coulterophytum la rum. 

 Urapam. Mexico, Oct. 11, 

 1899, E. W. D. Holway. Dupl. 

 N. A. Ured. 1567. 



