294 



Mycologia 



thecia and the spiral and other irregular formations are to allow 

 for expansion of the apothecia due to growth. The hymenium 

 was deep-olive-green to black in color, velvety in texture, sinuate 

 in outline and slightly concave. The asci were cylindrical, 

 rounded at the tops, up to 425 /x long, 15 /x broad, and 8-spored. 

 The spores were ellipsoid, smooth, subhyaline, i -celled, 28-34 /a 

 by 11-15//,, uniseriate. The paraphyses were septate, rarely 

 branched, colorless and slightly swollen at the tips, downward 

 becoming brown, 5 in diameter. 



In an attempt to obtain pure cultures of the fungus, poured 

 plates of nutrient media were placed over pieces of the hymenium 

 which were discharging spores, but every plate became contam- 

 inated, probably because foreign organisms became attached to 

 the spores as they passed out through the tips of the asci. This, 

 however, did not prevent a study of the germination of the spores, 

 which occurred in 12-15 hours. Two different media were used 

 — potato agar and Czapek's agar.^ Upon the latter the germina- 



1 Distilled water 1000.00 c.c. 



Magnesium sulphate ... 0.50 gr. 

 Dipotassium phosphate. i.oogr. 

 Potassium chloride .... 0.50 gr. 



Ferrous sulphate 0.0 1 gr. 



Sodium nitrate 2.00 gr. 



Cane sugar 30.00 gr. 



Agar 15.00 gr. 



tion percentage was very high and almost in every case it was 

 bipolar, while upon the potato agar the germination percentage 

 was low and usually but one germ tube was produced. The high 

 germination percentage resulting from the use of Czapek's agar 

 suggests its use in the case of spore germination in certain of the 

 higher fungi where the spores are very resistant. The spores 

 also germinated freely in tap water, though usually but one germ 

 tube was produced. 



Regarding the systematic position of this form, the writer be- 

 lieves that he is correct in naming it Bulgaria platydiscus Casp. 

 It agrees very closely with the admirable description of Sarco- 

 soma globosum var. platydiscus Casp. given in Rabenhorst.^ In 

 the appendix of this volume, Rehm writes of Sarcosoma platy- 

 discus Casp. : Nachdem die Beschreibung von vS. globosum 

 vollig verschiedene Sporen erweist, ist dieser Pilz also selbst- 



2 Rehm in Rabenhorst's Kryptogamen-Flora 5: 98. 1896. 



