448 BANKER: GENERA OF HYDNACEAE 
Irpex Fr. 1828. Sistotrema pendulum Alb. & Schw. 
Radulum Fr. 1825. Sistotrema pendulum Alb. & Schw. 
Kneiffia Fr. 1836-8 = Neokneiffia. 
Kneiffiella Karst. 1889. Aydnum barba-Jovis Bull. 
Kneiffiella Underw. 1897 = Neokneiffia. 
Kneiffiella Henn. 1898 = Neokneiffia. 
Leptodon Quel. 1886 = Pleurodon. 
Lopharia Kalch. & MacOwan 1881. JZ. “villosa. 
Thwaitesiella Massee 1892. Radulum mirabilis B. & Br. 
Mucronella Fr. 1874. AMydnum calvum Alb. & Schw. 
Mucronia Fr. 1849. AHydnum calvum Alb. & Schw. 
Neokneiffia Sacc. 1898. Thelephora aspera Pers. 
Kneiffia Fr. 1836-38. TZhelephora aspera Pers. 
Kneiffiella Underw. 1897. Thelephora aspera Pers. 
Kneiffiella Henn. 1898. Thelephora aspera Pers. 
Pycnodon Underw. 1898. Thelephora aspera Pers. 
Odontia Pers. 1794. 0. ferruginea. 
Phaeodon Schroet. 1888. Odontia ferruginea Pers. 
Odontia Fr. 1836-8 ; name preoccupied. 
Odontinia Pat. 1887. Aydnum denticulatum Pers. 
Phaeodon Schroet. 1888 = Odontia Pers. _ 
Phellodon Karst. 1881. Hydnum nigrum Fr. 
Phlebia Fr. 1821. Merulius merismoides Fr. 
Pleurodon Quel. 1878. AHydnum occidentale Paul. 
Leptodon Quel. 1886. AHydnum occidentale Paul. 
Pycnodon Underw. 1898 = Neokneiffia. 
Radulum Fr. 1825 = Tylodon. 
Sarcodon Quel. 1878 = Hydnum. 
Sistotrema Pers. 1794. Hydnum sublamellosum Bull. 
Sclerodon Karst. 1889 = Gloiodon. 
Steccherinum S. F. Gray, 1821. Aydnum ochraceum Pers. 
Thwaitesiella Mass., 1892 = Lopharia. 
Tylodon gen. nov. 7. Friesii. 
Radulum Fr. 1830. R. pendulum (cf. page 440). 
Tyrodon Karst. 1881 = Dentinum. 
Xylodon S. F. Gray, 1821. Sistotrema quercina Pers. 
CALIFORNIA, Pa, 
