MUTINUS PENTAGONUS (Fig. 28). All the previous spe- 

 cies of Mutinus have cylindrical stems, but in this species the stem 

 is pentagonal (or sometimes six-angled). The gleba-bearing portion 

 is also strongly fluted, and the gleba is borne on the channels with 

 free edges. In the genus Lysurus the lobes, when young, are con- 

 nivent, and the young plants of L/ysurus Mokusin evidently closely 

 resemble this species. In Mutinus pentagonus I am convinced from 

 an examination of dried specimens that there are no arms, but that 

 the receptacle consists of a single piece. Mutinus pentagonus is 

 known only from Australia, and but scantily there. 



MUTINUS XYLOGENUS (Fig. 29). This is the smallest phalloid 

 known and an idea of its size can be obtained from our photograph, which is 

 an enlargement six diameters. It is only known from a collection made in 

 French Guiana many years ago, and preserved at Paris. It is a question whether 

 it is a Phallus or a Mutinus (cfr. Myc. Notes, p. 336). If a Mutinus, it is 

 not only the smallest species known, but differs from all other species in having 

 a globose mass of gleba. 



Fig. 25. 



M-UTINUS RAVENELII. 



Fig. 29. 



MUTINUS XYLOGENUS. 

 (Enlarged x6.) 



DOUBTFUL AND LITTLE KNOWN SPECIES. 



The same remarks apply here as under the same head concerning i he 

 genus Phallus. Mutinus minimus, Mutinus borneensis, Mutinus proximus, and 

 Jansia boninensis may all prove to be the same plant. 



30 



