CONTEXT AND PORES WHITE OR PALE. 



minute, rigid. Spores peculiar, oblong, truncate at base, 8 x 16 mic., 

 hyaline. 



It is a frequent plant in the East, Australia, Africa, India, Cey- 

 lon, etc., but does not occur in the American tropics. It is a Polyporus 

 or perhaps a Trametes, and has been called both. It is usually of a 

 season only, and the old specimens turn black. Both Patouillard and 

 Berkeley discovered "new species," both based on old, effete condi- 

 tions of Polyporus ochroleucus. The spores are always abundant and 

 are peculiar, and are in reality white "Ganodermus" spores. There 

 are but two species known with such spores, Polyporus ochroleucus of 

 the East and Fomes Ohiensis of America. If the sections of poly pores 

 are ever arranged strictly on the relationships of the species, these 

 two species will form a "genus" on the same character on which rests 

 the "genus" Ganodermus, excepting that the spores are not colored, 

 but hyaline. Both in its general appearance and the regularity of the 

 pores there is a resemblance between this plant and Polyporus (Gano- 

 dermus) ochrolaccatus. 



Fig. 651. 



Polyporus ochroleucus. 



Usually it is a Polyporus, but we have one collection which shows 

 distinct, annual layers, making it a "Fomes." The surface is usually 

 smooth, sometimes strongly rough, fibrillose, and sometimes it is 

 reddish, stained. The spores of weathered specimens become slightly 

 colored. It has a strong leaning toward "Ganodermus" in more than 

 one respect. 



SPECIMENS. 



Miss Margaret Flockton, J. ti. O. Tepper; Japan, 

 T. Fetch; Africa, Rev. C. Torrend, A. J. T. Janse. 



Compare Brisbanensis, Kerensis, Leveillei, also Fomes compressus. 



^^v-^i^J. Australia, Edmund Jarvis, Miss E. I. Benham, H. B. Williamson, J. T. Paul, 

 Miss Margaret Flockton, J. G. O. Tepper; Japan, J. Umemura, A. Yasuda, S. Kawamura; Ceylon, 

 ev. C. Torrend. A. T. T. Tanse. 



POLYPORUS VERSISPORUS. Pileus ungulate, dimidiate 

 (about 2x4x2 cm.) Surface with a reddish stain, hard, but no dis- 

 tinct crust. Context pale, isabelline, hard. Pores minute, 8-10 mm. 

 long. Cystidia, none. Spores cylindrical, 4 x 8-10, hyaline, straight. 



Based on a collection (251) from A. Yasuda, Prov. Tosa, Japan. 

 In general appearance it is so close to Polyporus ochroleucus that I at 



312 



