452 
III. On Muhlenbergia mexicana (L.) Trin. 
Henry, 1915 (Jackson); Johnson, 1915 (Pipal); Lake, 1913 
(Pipal); Lawrence, 1905; Tippecanoe, 1896 (Stuart, Snyder). 
On Mubhlenbergia Schreberi Gmel. (M. diffusa Sehreb.) 1893:53, 
Hy, IC LOByei lel 
Delaware, 1915 (Jackson); Hamilton, 1905 (Wilson); Johnson, 
1890 (Fisher); Owen, 1911 (Pipal); Tippecanoe, 1896 (Snyder 
in Arth. & Holw. Exsic. et Icon. 50a). 
On Muhlenbergia tenuiflora (Willd.) B.S. P. 
Montgomery, 1915 (Mrs. J. C. Arthur). 
On Muhlenbergia umbrosa Sehreb. (M. sylvatica Torr.) 1896: 
PPAIE 
Johnson, 1915 (Pipal); Tippecanoe, 1896 (Snyder). 
67. DICAEOMA IMPATIENTIS (Schw.) Arth. 
Aecidium Impatientis Sehw. 
Puccinia perminuta Arth. 
I. On Impatiens biflora Walt. (7. fuloa Nutt.) 1893:50. 
Jefferson, 1915 (Demaree); Johnson, 1890 (Fisher); Montgomery 
(Rose): Putnam, 1893 (Underwood); Tippecanoe, 1914 (Lud- 
wig in Barth. Fungi Columb. 4757, and Barth N. Am. Ured. 
1254). 
On Impatiens pallida Nutt. (J. aurea S. Wats.) 1896:217. 
Carroll, 1910 (Hoffer); Fayette, 1913 (Ludwig); Putnam, 1908. 
(Wilson): Tippecanoe, 1896 (Snyder). 
Ill. On Agrostis perennans (Walt.) Tuckerm. 
Delaware, 1915 (Jackson); Fayette, 1912 (Ludwig); Johnson 
1890 (Fisher). 
On Elymus canadensis L. 
Tippecanoe, 1896 (Snyder). 
On Elymus striatus Willd. 
Jefferson, 1903 (Arthur); Tippecanoe, 1902 (Arthur). 
On Elymus virginicus L. 1893:55. 1896:221. 1908:91. 
Tippecanoe, 1888 (Bolley), 1900 (Arthur). 
On Hystrix Hystmix (L.) Millsp. 1893:52. 
Jefferson, 1914 (Demaree); Johnson, 1890 (Fisher). 
