Murrill: Illustrations of Fungi 



3 



Dictyophora Ravenelii (Berk. & Curt.) Burt 

 Sawdust Stinkhorn 



Plate 17. Figure 4. X l 



Pileus conic-campanulate, 2.5-3.5 cm. long, the surface white 

 and granulate or minutely wrinkled after the disappearance of 

 the olivaceous gleba; apex smooth, white, umbilicate, closed by 

 a thin membrane or at length perforate; spores oblong-ellipsoid^ 



4- 5 X 2 /X, involved in mucus ; stipe cylindric, slender, tapering at 

 each end, cellular-spongy, white, hollow, 10-12 cm. high, 2 cm. 

 thick; veil membranous, usually scarcely half the length of the 

 pileus and concealed beneath it, very rarely protruding; volva 

 ovoid, pinkish, 4-5 cm. in diameter, containing the lower half of 

 the veil attached about the base of the stipe. 



This species occurs in abundance in old sawdust piles and about 

 rotting logs and stumps in woods and fields in the eastern United 

 States and Canada. It may be readily distinguished from the 

 veiled stinkhorn by the absence of a conspicuous, reticulate veil ; 

 its cap is also smooth instead of coarsely pitted, and its odor is 

 less penetrating and disagreeable. 



Dictyophora duplicata (Bosc) Ed. Fisch. 

 Veiled Stinkhorn 



Plate 17. Figure 5. X | 



Pileus campanulate, 5 cm. long, the surface appearing strongly 

 reticulate-pitted after the fetid, olivaceous gleba has been de- 

 voured by flies or washed away by rains ; apex truncate, per- 

 forate ; spores oblong-ellipsoid, 4 X 2 /x, involved in mucus at 

 maturity ; stipe fusiform-cylindric, tapering at each end, cellular- 

 spongy, white, hollow, 10-20 cm. high, 2.5-3 cm. thick ; veil white, 

 reticulate, variable in length, sometimes much expanded, always 

 conspicuous, fragile; volva globose, nearly white, very poisonous, 



5- 7 cm. in diameter. 



This very conspicuous and objectionable species occurs in the 

 United States about buildings and near stumps in fields and in 

 the edges of woods. It may be easily recognized by its con- 

 spicuous veil, which is attached near the apex beneath the pileus 

 and hangs down to the middle of the stipe or lower. The mature 

 gleba is extremely fetid, proving attractive to flies, which prob- 

 ably disseminate the spores. I thy phallus impudicus (L.) Ed» 



