94 



Mycologia 



64. Poria nitida (Pers.) Cooke, Grevillea 14: no. 1886 



Boletus nitidus Pers. Obs. Myc. 2: 15. pi. 4, f. 1. 1799. 



According to Bresadola, Persoon's original plant is quite dis- 

 tinct from Fries' interpretation of it. An excellent specimen col- 

 lected on pine in Poland was recently sent me by Bresadola and I 

 find it strikingly similar to Poria mutans* tenuis Peck. The spec- 

 imens so labeled in American herbaria are mostly confused with 

 P. eupora and P. vincta. Poria nitida crocca Schw. at Paris from 

 French Guiana is near P. spissa. In his paper on Poland fungi, 

 Bresadola gives the following description of P. nitida : 



" Subiculum ut plurimum manifestissimum, usque ad 6 mm 

 crassum, aurantiacum, in magis evolutis basi album, in exsiccatis 

 saepe roseum, ex hyphis crasse tunicatis, 3-6 /x crassis, conflatum ; 

 tubuli et pori carnosi, molles, colore primitus carneolo dein vitel- 

 lino vel aurantio-incarnato, compressione vel tactu fuscescentes, 

 mox collapsi ; sporae hyalinae, oblongae, 5-6x2^-3^." 



In opposition to Bresadola's opinion, I have a note made in 

 Persoon's herbarium at Leiden in 1906 to the effect that Poria 

 nitida Pers. is near, if not the same as, P. attenuata Peck, and 

 that Bresadola did not see Persoon's specimens. This would 

 make the Friesian interpretation of the species more correct and 

 our American specimens so labeled would not be far wrong. If 

 I could see Pers. Obs. Myc. 2 : pi. 4, f. 1 (which is not in our 

 library) and compare it with my plants, I believe I could settle 

 this question. Persoon's description is of little use. 



65. Poria pavonina Bres. Hedwigia 35 : 282. 1896 



Described as below from specimens collected at Blumenau, 

 Brazil, by Dr. Moller. I have examined the types of this species 

 in Bresadola's herbarium and there are good specimens in the 

 Ellis Collection here. The color is very beautiful, varying from 

 dark-lilac to pale-purple. The species is known only from 

 Blumenau, Brazil, where it was collected three times by Moller. 

 His no. 364, which is older than the other two collections, was in- 

 correctly determined by Bresadola as Poria jamllacea, a species 

 described from New England. 



