BY LKONARD RODWAY, UOVERNMENT BOTANIST. 27" 



HYSTERANGIUM NEGLECTUM, Mass. et Rod. 

 ("Kew Bulletin," Sept. 1899.) 



Irregular, 2-4 cm. Peridium thick, smooth, fleshy 

 sooty-brown. Gleba dense, dark rich brown, the spaces, 

 numerous, tortuovis not as minute as in most species. Spores 

 oblong, obtuse, smooth or obscurely rugulose, pale brown, 

 12-15 X 8 micron. 



HYSTERANGIUM AFFINE, Mass. et Rod. 



C'Kew Bulletin," June, 1898.) 



More globose than most species, with the longer 

 diameter erect and a root-like process from below, fi'om 

 under one to nearly two centimetres diameter. Peridium 

 rather thick, fleshy pale brown. Gleba dense, somewhat 

 greenish, spaces minute, tortuous, with generally much 

 bluish gelatinous trama intervening. Sterile base very 

 small. Spores pale, bluish green, oblong, not very obtuse, 

 11-13 X 5-6 micron. 



VAR. IRREGULARE, Mass.— Less regular in form; 

 peridium thinner ; gleba brownish ; spores very obtuse, 

 10 X 4 micron. 



VAR. TENUISPORA, Rod.— Differs from the type- 

 in the thinner peridivim, gleba darker, nearly black, and m 

 the more slender spores, 12-14 x 2.5-3 micron. 



HYSTERANGIUM CLATHROIDES, Vitt. 



Vei-y irregular in shape, about 2 cm. diamter. Peri- 

 dium thin, floccose continuous, with surrounding mycelium. 

 Gleba grey-hyaline, soft, almost waxy. Spaces not very 

 toi-tuous nor crowded, narrow, pale brown. Spoi'es oblong, 

 pointed at both ends, smooth, pale brown, lo x 5 micron. 



HYSTERANGIUM VISCIDUM, Mass. et Rod. 

 ("Kew Bulletin.") 



An irregailar tuber, 3 x 1.5 cm. Chocolate brown, 

 with a viscid surface. Peridium gelatinous, rather thin. 

 Gleba pale but dotted with the minute hymenial spaces, 

 which are brown from the contained spores. Spores ob- 

 long, obtuse, papillate, yellowish brown, 14-15 x 10 micron. 



