j 
- 
1 
1896] THE PHALLOIDEA OF THE UNITED STATES 383 
One of the dried specimens of C. Ravenel in the Curtis 
Herbarium discloses a portion of the surface of the spore-bearing 
part next to the central cavity of the stipe. The pits may still 
be seen. The specimens collected at Somerville, Mass., the 
structure of which has been shown in my account of the devel- 
opment of M. caninus, are undoubtedly the same as those of 
Corynites Ravenelii B. & C., and they show that, while the stipe 
is usually distinctly perforate at the apex, it may, nevertheless, 
be so minutely perforate and with the lips of the orifice so 
closely drawn together as to be fairly described as imperforate. 
The variations observed in the abundant supply of material 
at Somerville show very clearly that our forms, called sometimes 
Mutinus (Corynites) Ravenelii and sometimes Mutinus caninus, are 
really the same species and cannot well be separated from M. 
caninus of Europe. The spore-bearing part may be quite as 
short in proportion to the total length of the stipe as it is in the 
European types, or it may vary to one-third the total length of 
the stipe in the same lot of material. The shorter the spore 
bearing part, the more acute it is likely to be in our specimens 
Which Ihaveseen. As the plant is much more frequent with us 
than it is in Europe, more variation would be expected in our 
form. It has therefore seemed best to slightly modify the old 
description so that it may comprehend as well the relative pro- 
portions in size of parts shown by our plant. 
The specimen of Corynites brevis B. & C. in the Curtis Herbarium 
is identical with those of C. Ravenelii B. & C. and thus confirms 
Ravenel’s statement; that C. drevis was merely an herbarium 
name for C. Ravenelii and was probably printed by an oversight 
of the author in Dr. Curtis’s catalogue in the Geological and 
Natural History Survey of North Carolina. 
ITHYPHALLUS Fries Syst. Myc. 2. 1823 (subgenus). 
Receptaculum consisting of a hollow stipe and of a pileus 
bearing the gleba upon its outer (upper) surface. Veil 
Wanting, 
*See Gerard, Bull. Torr. Bot. Club 7:30. 1880. 
