them. There are a few Hymenogasters that are not hypogeal. The 

 most frequent, epigeal species we have is Rhizopogon, and in the 

 South, Hydnangium Ravenelii. 



Nothing has been written as to the habits of Hydnangium Rave- 

 nelii, but we judge from the specimens that it grows on the surface 

 of the ground. There is a statement that when fresh it exudes a 

 milky fluid when cut. If true, it is one of the few Hymenogasters so 

 characterized. The surface of the dried plant is smooth with a pinkish 

 color. The gleba formed of cells, empty to the eye, has a pale pinkish 

 cast. Collection notes as to habits, color when fresh, color of gleba 

 when freshly cut, milky juice, if any, etc., are earnestly desired. 



Hydnangium Ravenelii was named by Berkeley as a variety of 

 Hydnangium Stephensii of England. We do not know the latter 

 plant excepting from description, and Tulasne's figure of the spores. 

 The spores of the American plant are not the same as Tulasne's spores. 

 They are globose or slightly compressed when young, and the spines 

 are more blunt. 



We use the word spines as usually applied to the spores of 

 Hydnangium, but are suspicious that it is a mistake. We think they 

 do not have spines but are reticulate, the edges of the reticulations 

 appearing as "spines" as seen under the microscope. 



Hydnangium Ravenelii was referred to the genus Octaviania by 

 Tulasne, as found in Saccardo. The distinction between these two 

 genera is not obvious to us, and we have studied species of both 

 genera from Europe. The "cottony" peridium that characterizes 

 Octaviania according to description is not in evidence in dried speci- 

 mens. The trama is the same, and hardly vesicular as attributed to 

 Hydnangium, nor are the cells of the species "filled with spores." 

 We believe it would simplify matters to call both Octaviania, as 

 Vittadini originally did. 



Hydnangium Ravenelii seems frequent in the South. We have 

 specimens from G. C. Fisher, Florida; F. S. Earle, Dr. R. P. Burke, 

 and A. S. Bertolet, from Alabama. 



ANTHURUS MACOWANI (Fig. 779). We reproduce the figure 

 of this species that was published recently in Marloth's Flora of 

 South Africa It is quite a rare species and seems to have been 

 named in honor of the fact that it was never collected by MacOwan. 

 The genus Anthurus is known now by only two species, Anthurus 

 aseroeformis (cfr. Syn. Phalloids, fig. 46) in Australia, and this from 

 South Africa and in addition there is a very imperfectly known 

 species in India, Anthurus calathiscus (fig. 49, 1. c.) On comparing 

 the figure published by Dr. Marloth, with that of the Australian 

 species published in our pamphlet, it will be seen that they closely 

 approach each other. They differ in shape, but not so much but that 

 they can be a modification of the same. If the South African species 

 proves in time to be the same as that of Australia, I presume I am 

 to blame, for the drawing was submitted and passed on by me before 

 it was published. At that time, however, we had no illustration of 

 the Australian species, and only knew it imperfectly. There is an- 



570 



