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IOWA ACADEMY OF SCIENCE 
ago, became diseased, it is thought, by means of this rust. It may produce a 
form of Mycotic stomatitis. 
PUCCINIACEAE. 
17. Puccinia graminis, Pers. 
Wheat and oat rust, especially the uredo stage, produces inflammation of 
the mucus membrane of the mouth and nose. The dust coming from the 
• straw when grain is threshed often causes serious disturbances. Other rusts 
might be mentioned in this connection, like Puccinia coronata, Cda., the uredo- 
spores have an effect similar to that of the common grass rust. 
AUTOBASIDIOMYCETES Polyporaceae. 
18. Boletus felleus, Bull. 
Probably occurs in the state. It has a bitter taste. Poisonous. 
Agaricaceae. 
19. Lepiota morganii, Pk. 
This fungus is very common in the fall in meadows and pastures and lawns. 
The cap is from five to eleven inches across. The gills or radiating plates 
beneath the cap are brown when mature. The lower part of the stipe is 
somewhat enlarged, but no cup occurs. This when eaten by some people is 
known to produce poisoning and even death. 
20. Amanita muscaria, L. 
Used to poison flies in Asia. 
20a. Amanita phalloides, Fr. 
This species is very poisonous and no one should eat so-called mushrooms 
unless they are familiar with them. 
Phallaceae. 
21. Phallus impudicus, (L.) Fries. 
Is the common stinkhorn, probably poisonous, though its disagreeable odor 
would seem to render it distasteful to animals. 
Lycoperdaceae. 
22. Lycoperdon bovista, L. 
The giant puffball is edible in fresh condition, when the flesh is white, but 
in the mature form is considered poisonous, the same thing applies also to 
other puffballs. 
ASCOMYCETES Aspergillaceae. 
23. Eurotium herbariorum (Wigg.) Link. 
This fungus is supposed to produce staggers. Frequently found in moldy 
hay and gives rise to digestive disorders. Mycotic stomatitis. 
24. Aspergillus niger, van Tiegham. 
This mold also occurs in moldy hay and other moldy substances and like 
the preceding species is injurious. 
25. Aspergillus fumigatus, Fr. 
Commonly found on decaying substances, especially moldy hay. It is 
pathogenic. Found in the ear of man as a parasite. 
26. Aspergillus flavus, Link. 
