274 



Mycologia 



Aug. 21, 1905, Big Cottonwood Canyon, 8,000 feet. Very rare. 

 ExsiccATi : Fungi Utah. 12 j. 



16. Melampsoropsis Pyrolae (DC.) Arth. {Chrysomyxa 

 Piroiae Rost.) II, 

 Result. Sci. Congr. Bot. Vienne 338. 1906. 

 On Pyrola uliginosa Torr., (P. rotundifolia uliginosa Gray) : 

 68j, June 29, 1905, Big Cottonwood Canyon, 8,500 feet. On 

 Pyrola secunda L. : 82^, Aug. 10, 1905, Silver Lake, Big Cotton- 

 wood Canyon, 8,735 ^^^t. 

 . ExsiccATi : Fungi Utah. 7^, /j. 



17. Phragmidium affine Syd. I, III, 



Ann. Myc. 2 : 29. 1904. 



On Potentilla pulcherrima Lehm. : j/5, Sept. 3, 1903, Red Butte 

 Canyon, altitude about 6,500 feet. On Potentilla viridescens 

 Rydb. : 4pi, Aug. 29, 1904, Big Cottonwood Canyon. On Poten- 

 tilla glomerata A. Nelson : 7^-7, July 6, 1905, ''Hot Pots," Wasatch 

 Co., 6,912 feet. On Potentilla Bakeri Rydb.: 7M, July 6, 1905, 

 same locality as 7^7. 



This rust has been collected on other species of Potentilla not 

 yet satisfactorily determined. 



ExsiccATi : Fungi Utah. 100, 151. Fungi Columb. 1^46. 



18. Phragmidium Andersoni Shear, II, 

 Bull. Torrey Club 29: 453. 1902. 



On Dasiophora fruticosa (L.) Rydb., (Potentilla fruticosah.) : 

 705, July 3, 1905, South Fork Big Cottonwood Canyon. Very 

 rare. 



19. Phragmidium Horkeliae Garrett, III, 



Fungi Utah. 112. Jan. 19, 1907. 



On Horkelia Gordonii Hook., {Ivesia Gordoni T. & G.) : pj^, 

 Aug. 17, 1906, Mt. Millicent, Big Cottonwood Canyon, 9,500 

 feet. Very rare, found only in the type locality. 



20. Phragmidium Jonesii Dietel, I, III, 



Hedwigia 44 : 132. 1905. 



On Horkelia Gordonii Hook., {Ivesia Gordoni T. & G.) : 70J, 

 July 3, 1905, head of Little Cottonwood Canyon. Very rare. 



