238 



Mycologia 



" Effusus, innatus, albidus, demum ochraceus ; mycelio floccoso, 

 albo ; poris quandoque subrotundis, quandoque angulatis et inae- 

 qualibus, in stratum persistans constipatis ; dissepimentis tenuibus." 



Type from Aiken, South Carolina, by Ravenel, on oak branches. 

 See Rav. Fungi Am. Exsic. iii. Also seen at Kew, where it is 

 somewhat mixed. Berkeley's remark about its " resembling P. 

 vaporarius in some conditions " is entirely misleading. Compare 

 P. tomento-cincta and P. holoxantha. 



20. PoRiA FATiscENS (Berk. & Rav.) Sacc. Syll. 

 Fung. 6: 331. 1888 

 Polyporus fatiscens Berk. & Rav.; Berk., Grevillea i : 65. 1872. 



" Totus resupinatus albus tenuissimus pulveraceus ; poris serius 

 enatis primum punctiformibus dein angulatis. Car. Inf. En- 

 tirely resupinate. At first consisting of a thin white pulverulent 

 stratum, which, after a time, bears pores about %oo inch wide, 

 which are at first punctiform, then angular." 



Type from South Carolina, by Ravenel, on dead branches. 

 See Rav. Fungi Car. Exsic. 2 : ^I. Although no mention is made 

 of it in the description, herbarium specimens show the margin 

 and very young tubes to be white and unchanging, while the older 

 tubes exhibit various shades of yellow from sulphur-yellow to 

 chrome-yellow. It would be interesting to know if this is true 

 of fresh specimens. 



21. PoRiA Fusco-MARGiNATA Berk.; Cooke, 

 Grevillea 15 : 24. 1886 



" Orbicularis, elliptica vel confluens, adnata, ochraceo-pallida, 

 margine tenui, membranaceo, sterili, fusco, poris minutis, rotun- 

 datis, aequalibus, centro tubulis elongatis, peripherico curtissimis, 

 dein obsoletis, dissepimentis tenuibus." 



Type from Rhode Island, on wood. Poorly preserved and 

 scrappy at Kew, suggesting little. 



22. PoRiA RiCHERiAE Pat. Bull. Soc. Myc. 

 France 15 : 200. 1899 



"Resupine, inseparable du support, largement etale, plan ou 

 onduleux, dur et compact, crevasse par le sec, ayant a peine I 



