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IOWA ACADEMY OP SCIENCE 
112. Maesonia Juglandis Sacc. 
On Juglans cinerea L. 
Common and abundant on the butternut . which is sometimes almost de- 
foliated by the fungus. 
113. Gleospokium conpluejN'Tis Ellis & Dearn. 
On Sagittaria latifolia Willd. 
Common and conspicuous, frequently almost destroying the leaves. 
114. Gleospoeiuai Davisii Ellis & Everh. 
On Lathyrus venosus Muhl. 
A single cluster of pods were found infected in early August. 
ORDER MONILIALES. 
Family Moniliaceae. 
115. Alteenaeia Beassicae (Berk.) Sacc. 
On Brassica nigra (L.) Koch. 
Not common, but rather conspicuous, probably to be found on other closely 
related hosts. 
116. Alteenaeia Panax Whetzel. 
On Panax qninquefolia L. 
A very destructive pest in genseng beds but so far not observed on the wild 
plants. It is only by the most persistent efforts that growers are able to pro- 
duce a crop. 
117. Septocylindrium eufomaculaxs (Peck) Pound & Clements. [Ramularia 
rufomaculans Peck.] 
On Polygonum aviculare L. 
Common and abundant, often almost defoliating its host. 
118. Monilia angustior (Sacc.) Reade. 
On Prunus virginiana L. 
Common, but nowhere abundant on the immature fruits of the choke cherry. 
Probably the conidial phase of some species of Scierotinia. 
119. Didy^maeia didyaia (Unger) Pound. \_Ramularia clidyma Unger, D. 
Ungeri Corda.] ' 
On Ranunculus recurvatus Poir, and R. septentrionalis Poir. 
Common, but not very abundant. A conspicuous fungus owing to the 
frosted appearance of the conidiophores and the large epiphyllous discolora- 
tions. 
120. Raaiulaeia Araioracia Puckel. 
On Radicula Armoracia (L.) Robinson (Roripa A. S'. Hitch.) 
A very abundant species, practically every plant of horseradish being infected. 
121 Raaiulaeia ARVENSis Sacc. 
On Potentilla monsepalensis L. 
A common leafspot in the later weeks of summer and during the autumn. 
