IOWA ACADEMY OF SCIENCE 
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79. Ampelomyces quisqUxVLis Cesati. 
On Erysiphe ciclioracearum DC. on Aster sp., Yerhena stricta Vent., and V. 
urticifolia L. 
On Podosphaera Oxycanthae (DC.) de Bary on Primus americana Marsh. 
Very common on the mycelium of various species of ErysipJiaceae but not 
collected except as above. Probably every species of the family could be added 
to the list of hosts for this interesting species. 
80. Ascochyta OxyTjapM Trel. 
On oxytiaplius nyctagineus (Michx.) Sweet (Allonia nyctaginea) Michx. 
Rather common but neither abundant nor conspicuous. 
81. Ascochyta Violae Sacc. & Speg. 
On Yiola puhescens Ait. 
Not uncommon in midsummer. 
82. Dulakcia filum (Riv.) Cast. 
On Puccinia Asparagi (DC.), on Asparagus officinalis L., Metampsora Bige- 
lowii Thum., on Salix fluvitialis Nutt., M. Medusae Thum., on Populus del- 
toides Marsh., XJromyess Bilphii (Burr.) Arth. on Juncus interior Weigand. 
Common and abundant on the uredinia and to a less extent on the telia of 
various species of rusts. 
83. Septobia Ageimonia Roum. 
On Agrimonia mollis (T. & G.) Britton. 
Rather common on stunted plants in July and August. 
84. Septobia Cryptotaeniae Ellis & Ever. 
On Asclepias incarnata L., and A. syriaca L. 
Rather plentiful and quite conspicuous during the later summer and early 
autumn. 
85. Septobia ateopuepurea Peck. 
On Aster cordifolius L. 
The reddish brown discoloration render this a very conspicuous species, 
although it was not very abundant during the past season. 
86. Septobia Campanulae (Lev.) Ellis. 
On Campanula americana L. 
Common and abundant during late summer. The peculiar seared appearance 
of the leaves renders this a rather conspicuous species. 
87. SeptorIxI Cannabina West. 
On CannaMs sativa L. 
Abundant on hemp from late July to frost, producing spores freely although 
sometimes said to fruit sparingly. 
88. Septobia conspicua Ellis & Mart. 
On Steironema ciliatum (L.) Raf. 
Rather scarce, appearing in early summer. 
