242 



Mycologia 



30. Poria subsulphurea (Ellis & Ev.) comb. nov. 

 Myriadoporus subsulphureus Ellis & Ev. Bull. Torrey Club 24: 

 277. 1897. 



" Effused, immarginate, wood-color or grayish-white outside, 

 light sulphur-yellow within, of a brittle corky texture, stratose, 

 4-5 mm. thick, extending continuously from 5-6 cm. or more ; 

 pores imperfectly developed, not continuous and cylindrical, but 

 mere cavities scattered irregularly through the substance, more 

 abundant near the surface. 



" Has the general appearance of Poria vulgaris Fr. or P. ob- 

 ducens Pers." 



Type from Denver, Colorado, by E. Bethel on dead coniferous 

 wood. It is very pale yellow and the tubes are cellular and stra- 

 tose. Abnormal forms like this species, Poria indiiraia, and Poria 

 vesiculosa, etc., will have to be retained under their present names 

 until more fully investigated. They may be only monstrous 

 forms of well-known species or they may be distinct. 



31. Poria favescens (Schw.) Sacc. Syll. 

 Fung. 6: 325. 1888 



Polyporus favescens Schw. Trans. Amer. Phil. Soc. 4 : 158. 1832. 



" Non absimilis P. megaloporo, Pers. Myc. Eur. 105, differt 

 colore. Bethlehem rarius in ramis. Favum refert. 



" P. resupinato-effusus ad pedalem longitudinem, crassus, 

 margine tenui subalbido, determinatim elevato ambitu. Poris 

 latiusculis, hexagonis ; tubis longissimis, pallidis.'* 



Type from Bethlehem, Pennsylvania, by Schweinitz, on dead 

 branches. To be seen both at Kew and Philadelphia. Compare 

 carefully with Poria Rhododendri and Coriolellus sepium, from 

 which it can hardly be distinct. 



32. Poria Rhododendri (Schw.) Sacc. Syll. 

 Fung. 6 : 322. 1888 



Polyporus Rhododendri Schw. Trans. Amer. Phil. Soc. 4: 158. 

 1832. 



" P. longitudinaliter efYusus, angustatus. Primum observatur 

 membrana papyracea, detractabilis, albescens aut pallescens, in 

 cujus centro port pauci parum elevati, lati, occurrunt. Demum 



