The first is Phallus gracilis, or Phallus aurantiacus var. gracilis, 

 if you wish, which is a common tropical form no doubt throughout 

 the tropical world. It has recently been demonstrated to be the cause 

 of the destructive root rot of sugar cane in Hawaii. Mr. O'Connor's 

 specimen has the pileus more acute than the Hawaiian plant, but 

 otherwise it appears to be the same. I am informed by Mr. O'Con- 

 ner that this species is the only common phalloid in Mauritius. 



The second is a small specimen of Phallus indusiatus, as de- 

 scribed in Mycological Notes, page 332, and illustrated plate 119. 

 With the exception that his specimen is smaller than the ordinary 

 form it is the common species throughout the tropics. 



Fig 192 



Fig. 191 



The third is of considerable interest, being, I believe, the same 

 plant we have so common in the United States, namely Phallus dupli- 

 catus, and this is the first record to my knowledge outside of our own 

 country. On comparison of Mr. O'Connor's with our American plant 

 I can note very little difference excepting that the reticulations of the 

 pilei of the two forms are not exactly the same. The Mauritius form 

 has shorter and deeper meshes. Our Figs. 191 (from Mauritius) and 

 192 (from America) will show this difference. As to the veil it seems 

 the same as the American form. It shrivels in alcohol so that it ap- 

 pears as a membrane. Professor Fischer is disposed to consider Phal- 

 lus duplicatus and Phallus indusiatus as the same species, but I feel 



371 



