PHALLALES 



133 



Of Clathrus, three species have been reported from our country; 

 C. cancellatus is the only species with obhque lattice work and is 

 as rare as it is beautiful and disagreeable. 



Phallogaster saccatus {PL g. f. 2-4) is a rare aberrant type 

 showing relations to the Lycoperdales ; it probably has a wide dis- 

 tribution but so far has been collected but a few times. 



Siniblum rubescens was originally described from Long Island 

 and has since been found in Nebraska. {PL g. f. /.) Aiithurus 

 borealis is our single species from New York and Massachusetts ; 

 both are rare species. A species of Lysiiriis was partially de- 

 scribed by Ellis ^ from Texas but nothing further is known of it. 

 The region of the Southwest is likely to give us several additions 

 to this group when properly explored. The ephemeral nature of 

 these plants is such that these species are likely to appear in other 

 localities and will be collected as soon as careful field workers are 

 developed, and it is probable that other species will be found 

 when more extended exploration is made. 



The genuine stink-horns belong to the family Phallaceae. Like 

 the members of the preceding family they originate in the form 

 of eggs which rise from mycelial strands connected with a large 

 system of hyphae drawing their nourishment from decaying vege- 

 tation. We have seen these interlacing strands extending along 

 an old decaying log for ten feet or more, producing a series of eggs 

 in various stages of development. The genera of this country 

 may be distinguished as follows : 



1. Gleba borne on the upper portion of the stipe. MUTINUS. 

 Gleba borne on the surface of a pileus which joins the stipe at the 



apex. 2 



2. With a more or less developed veil hanging like a membrane from the 



apex of the stipe underneath the pileus. Dictyophora. 



Veil entirely wanting. Phallus. 



Of Mictiniis we have two or three species fairly well distributed 

 over the eastern and middle states ; they have about the diameter 

 of one's finger but are sometimes longer. Two species of Phallus -}- 



^- Bull. Torrey Bot. Club, 7:31. 1880. 



f By some this generic name has been abandoned ; it originated with 

 Micheli in 1 7 29, and was used by Linnaeus with his usual ignorance of af- 

 finities to include the morel and the single stink-horn known to him ; there 

 is no good reason for substituting the recent name Ithyphallus for a name 

 long established, as Fischer and others have done. 



