220 BROOKLYN BOTANIC GARDEN MEMOIRS 



34. Gymnosporangium Betheli Kern, Bull. Torrey Club 34: 459, 



1907. 



Roestelia Betheli Kern, Bull. Torrey Club 34: 461. 1907. 

 On Malaceae: I. 



Crataegus Doiiglasii Lindl.^ — Joseph, Wallowa Co., Aug. 19, 1899, 

 C. L. Shear (Ellis & Ev. Fungi Columb. 1480). 

 On Juniperaceae: III. 



Juniperiis occidentalis Hook. — Whitney, Baker Co., Aug. 191 5, 

 J. R. Weir, 170. 



Another specimen on Crataegus sp. indet. from eastern Oregon 

 (ex herb. Ellis) bearing no date is in the Arthur herbarium and has 

 been examined by the writer. 



The life history of this species was first demonstrated by Arthur 

 (Jour. Myc. 14: 23. 1908) and later repeatedly confirmed. Telia 

 are otherwise known only on Juniperiis scopulorum from Colorado, 

 Idaho and Montana. Aecia are known to occur only on Crataegus 

 sp. in the Rocky Mt. region and in eastern Oregon and Washington. 



35. Gymnosporangium Blasdaleanum (Dietel & Hoi way) Kern, 



Bull. N. Y. Bot. Gard. 7: 437. 191 1. 

 Aecidiiim Blasdaleanum Dietel & Holway, Erythea 3: 77. 1895. 

 Gymnosporangium Libocedri Kern, Bull. Torrfey Club 35: 509. 



On Malaceae: I. 



Amelafichier florida Lindl. — Eugene, Lane Co., July ii, 1914, 

 G. B. Posey, 3276; Albany, Linn Co., June 11, 1913, D. W. Rum- 

 baugh, 3171; Cottage Grove, Lane Co., June 13, 1913, 3168, June 

 20, 1913, C. E. Stewart, 3177; Lebanon, Linn Co., Aug. 2, 1913, 

 F. D. Bailey, 3174; Crater Lake, Klamath Co., 7,000 ft., Sept. 4, 

 1913, E. P. Meinecke, Cr Pk D 11; Jackson Co., July, 1914, F. C. 

 Reimer, 1791; Between Albany^ and Lebanon, Linn Co., June 13, 

 1913, C. E. Roberts, 1788; Lost Prairie, Sept. 1891, M. Craig; Halsey, 

 Linn Co., June 9, 1913,3170; Corvallis, July 29, 1915,3750; Ashland, 

 Jackson Co., Sept. 10, 1914, 3047; N. W. Mt. Jefferson, Whitewater 

 station, Aug. 17, 1914, H. P. Barss «& G. B. Posey, 3043, Aug. 28, 

 1916, H. P. Barss. 



^Crataegus Douglasii Lindl. — Halsey, Linn Co., June 9, 1913, 3214; 

 Albany, Linn Co., D. W. Brumbaugh, 3212; Cottage Grove, Lane 

 Co., May 21, 1913, 3169, June 14, 1913, 3209; Eugene, Lane Co., 

 May 8, 1913,3/73. 



Cydonia japonica Pers. — Eugene, Lane Co., June, 1914, G. H. 

 Godfrey. 



Cydonia vulgaris L., Halsey — Linn Co., June 9, 1913, 3166; Irving, 

 Lane Co., 1913, Comm. S. J. Quigley, 1871; Creswell, Lane Co., 



