354 The Ohio Naturalist. [Vol. XI, No. 8, 



1. Hydnoporia fuscescens (Schw.) Murrill, N. Am. Flora 9 :3. 



19U7. 

 Sislotrema fuscescens Schw. 



Generally known as Irpex fuscescens Schw. and I. cin- 

 namomeus Fr. This species is wholly resupinate, with a 

 narrow, sterile border. The tubes are at first very short 

 but soon become elongated and irpiciform. The color is a 

 dark yellowish brown. Rather common on dead branches 

 of oak and sugar trees, over the state. 



2. Fuscoporia ferruginosa (Schrad.) Murrill, N. Am. Flora 



9 : 5. 1907. 

 Boletus ferruginosus Schrad. 



Known as Poria ferruginosa (Schrad.) Fr. On dead decid- 

 uous wood. Not common. 



3. Fomitiporia obliquiformis Murrill, N. Am. Flora 9 : 9. 1907. 



Collected near Cincinnati on hardwood logs by Morgan 

 and referred to Poria obliquus Pcrs., a European species. 

 Common. 



4. Fomitiporella inermis (Elhs & Ev.) Murrill, N. Am. Flora 



9 : 13. 1907. 

 Poria inermis Ellis Sc Ev. 



On deciduous wood. Not common. 



5. Melanoporia nigra (Berk.) Murrill, N. Am. Flora 9 : 15. 1907. 

 Polyporus niger Berk. 



Characterized by a black hymenium. On oak wood. 

 Probabh' rare. 



6. Irpiciporus mollis (Berk. & Curt.) Murrill, Bull. Torr. Club 



32 :471. 190.5. 

 Irpex mollis Berk. & Curt. 



Also known as I. crassus Berk. & Curt. On dead decid- 

 uous wood. Not common. 



7. Irpiciporus lacteus (Fr.) Murrill N. Am. Flora 9 : 15. 1907. 

 Sislotrema lacteum Fr. 



Commonly known as Irpex tulipifcra Fr. The most 

 common of all the resupinate forms. It is found on all 

 sorts of dead deciduous branches, frequently with the inar- 

 gin reflexed on both sides. 



Illustration: Hard, p. 448, f. 376. 



8. Poronidulus conchifer (Schw.) Murrill, Bull. Torr. Club 



31 :42G. 1904. 

 Boletus conchifer Schw. 



Known as Polyporus conchifer Schw. and as P. virgineus 

 Schw. This species is a very peculiar one. The young 

 plant is a sterile, cup-shaped body about 1 cm. in diameter, 

 varying in color from pure white to dark brown, and marked 



