82 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



LYCOPERDON Tourn. 



L. gemmatum Batsch. 



On ground in woods, alt. 2,000 ft., Aug. 24, 1893 (Nuttall, 

 1 1 80). 



L. furfuraceum Schaeff. 



In grass on lawn, Sept. 3, 1893. Capillitium thicker than the 

 spores, branches few, 2.5 to 4 cm. in diameter, outer coat pure 

 white (Nuttall, 1188). 



L. pedicellatum Peck. 



On moss on ground in pine woods, alt. 2,000 ft., March 10, 

 1893. Pedicels 20 /JL long (Nuttall, 864). 

 L. PYRIFORME Schaeff. 



Under bark of Quercus palustris, MonongaliaCo., near Morgan- 

 town and near Little Falls (Millspaugk) on rotten wood, Feb. 2, 

 1893 (Nuttall, 832). 



SCLERODERMA Pers. 

 S. VULGARE Hornem. 



On chips of Picea Mariana, Tucker Co. Falls of Blackwater 

 (Millspaugti). Grant Co. , on dead logs, Otter Fork of Cheat; 

 and Monongalia Co., Tibbs Run, plentiful on clay of a path 

 (MillspaugK). In laurel thickets, July 28, 1893. Spores 10 ft. 

 (Nuttall, 1125). 



S. Bovista Fr. 



On ground, March 21, 1893 (Nuttall, 876). 



BOVISTELLA Morg. 



B. Ohioense (Ell. & Morg.) Morg. 



In grass on lawn, June 26, 1893 (Nuttall, 1003). 



MUCORACE^E. 



MUCOR Mich. 

 M. MUCEDO Linn. 



On open canned fruit left standing (MillspaugK]. On dead dry 

 fruit Asimina triloba, Oct. i, 1895 (Nuttall, 1866, 754). 



SPORODINIA Link. 



S. Aspergillus (Scop.) Schroet. 



On dead Agaricus and Boletus, Sept. 10, 1893 (Nuttall, 1196). 



PERONOSPORACE.E. 



CYSTOPUS Lev. 



C. CANDIDUS (Pers.) Lev. 



On living leaves of Dentaria diphylla, Monongalia Co., at Little 

 Falls (Millspaugfi). On Brassica nigra, July 8, 1893 (Nuttall, 

 1082). 



