of the tropical species is usually "corky-woody," persistent, and in the 

 original diagnosis this was part of the generic character. Under this 

 definition we have no true Hexagona in the United States, our South- 

 ern species with hexagonal pores being of a tough, fleshy nature. 

 For that reason perhaps it has always been classed as a Favolus, 

 though it seems to me its logical place is in the genus Hexagona. 7 



HEXAGONA CUCULLATA (Fig. 259). Pileus orbicular 

 reniform, attached by a very short disk-like stem. Surface smooth, 

 even; when fresh, Mars yellow; when old, deeper reddish brown. 

 Pores concolorous, orbicular, a scant mm. w r ide, shallow. 



History/ A rare plant in the southern states. I have only received a 

 single specimen from G. C. Fisher, Florida. At Kew there are three specimens, 

 though I think but one collection, from Ravenel, South Carolina. The fresh 

 plant is of a much lighter color than these old specimens. Montague named 

 it Favolus cucullatus from Cuba, and gave a good illustration of it. It was 

 referred to Favolus from its context nature, not its pore shape, which does 

 not agree with Favolus. Berkeley also discovered it was a new species, Favolus 

 curtipes and then he discovered that it was not. Then Mr. Murrill discovered 

 it was a new species, Favolus Taxodii and then he discovered it was not. 

 I received it from Mr. Fisher and while I thought it was a new species I 

 thought it would be better to learn a few of the old ones before announcing it. 



SOME NOTEWORTHY POLYPOROIDS. 



We shall present some of our most remarkable polyporoids that 

 deviate from the usual run of these plants. Most of them form "new 

 genera" for those who see a genus in every species out of the ordinary. 



POLYPORUS RHIPIDIUM (Fig. 260). Pileus dimidiate, 

 scattered or imbricate, with a short, usually dilated stipe, smooth, 

 white, becoming reddish with age. Pores round or somewhat irreg- 

 ular, rather large, with thin dissepiments. 



This species was originally described from Ohio (Lea), 8 but it 

 is a rare plant; at least I have never found it in its "type locality." 

 I think, however, that Professor Morgan did find it at Cincinnati. 

 Generally it is i to \ l / 2 cm. in diameter, with a short, broad, dilated 

 stem that gives it a general resemblance to Panus stipticus. 9 Our 

 photograph (Fig. 2606) represents an unusually large specimen. The 

 type collection, as well as others we have seen, are not larger than 

 we have noted. 



7 This section of Hexagona with tough flesh context will some day be discovered to be 

 a "new genus." I know four species now that belong to it: Hexagona cucullata, Hexagona 

 indurata, known from a single specimen from San Domingo; Hexagona bipindensis, of 

 Africa, and a species, pure white, that I collected in Samoa, for which I have not yet been 

 able to find a specific name, and think it has none. 



8 Though a well-known American plant, Polyporus Rhipidium is not included in the re- 

 cently published N. A. F., which states that it will include all American plants excepting those 

 cultivated only. The author probably thought it was cultivated. Either that or it was lost in 

 the juggle. 



9 The name Rhipidium means fan-shaped. 



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