374 



ences exist between the form on Uvularia and those mentioned above 

 it seems desirable to retain it as a separate species for the present. 



129. Uredo Andromedae Cooke, DeToni in Sacc. Syll. Fung. 7:853. 

 1888. 

 On Ericaceae: 



Pieris mariana (L.) Benth. & Hook., Wilmington, Oct. 1891, 



A. Commons (in E. & E. N. Am. Fungi 2717). 

 Xolisma ligusti-ina (L.) Britt., Selbyville, Oct. 4, 1907, (1941). 

 This species, included by Arthur in Melampsoropsis Cassandrae 

 (P. & C.) Arth. (N. Am. Flora 7:119. 1907) is clearly not that species, 

 as the urediniospores are echinulate. Its affinities are probably with 

 Pucciniastrum. The ostiolar cells of the peridium however are not well 

 developed and it seems best to retain it under the above name for the 

 present. 



Index to Species. 



Aecidium Apocyni 125. 

 asperifolii 41. 

 asterum 43. 

 Berberidis 79. 

 Caladii 100. 

 Callirrhoes 62. 

 Cephalanthi 125. 

 Compositarum 126. 

 compositarum Bidentis 75. 

 compositarum Eupatorii 56. 

 compositarum Xanthii 46. 

 Fraxini 60. 

 fuscum 33. 

 Geranii-maculati 81. 

 giganteum 7. 

 Helianthi-mollis 61. 

 Hepaticum 98. 

 Hibisciatum 62. 

 houstoniatum 107. 

 Hyperici-frondosi 109. 



Impatientis 64. 

 intermixtum 127. 

 Ivae 127. 

 leucostictum 111. 

 Ludwigiae 73. 

 Lycopi 38 

 Lysimachiae 67. 

 macrosporum 68. 

 Majanthae 128. 

 Melampyri 37. 

 Myrtilli 14. 

 Napaeae 62. 

 Nesaeae 68, 72. 

 nitens 19. 

 obesum 125. 

 Oldenlandianum 122. 

 Osmorrhizae 78. 

 Oxalidis 89. 

 Pammelii 77, 104. 

 Pentastemonis 37. 



