Pound: REVISION OF MUCORACEAE. 93 



Mucor mucedo Linne 1. c. 



Fischer gives as synonyms the following names to be found 

 in the Sylloge Fungorum: 



M. stercoreus (Tode) Lk. 



M. murinus Pers. / 



M. caninns Pers. 



M. aquos^ui Mart. 



JH. microcephalus Wallr. 



M. suhtilis (CoRDA) Berl. and De Toxi. 



Rhizojnis fructicolus (Cda.) Berl. and De Toni. 



M. rhizopogonis (Cda.) Berl. and De Toxr. 



M. candalahrum (Cda.) Berl. and De Toni. 



3f. bifudus Fres. 



M. glandifer BoN. 



M. ciliatus BoK. 



M. dimiaei Schulzer. 



The rest of the intricate synonymy need not be given. 



Sporangiophores erect, rigid, simple, 2-15 cm. high; spor- 

 angia large, round 100-200 mikrons in diam., the membrane 

 quickly disappearing leaving a small collar-like fragment at the 

 base; columella high arched, cylindrical or truncate conical, 

 70-140 X 50-80 mikrons; spores rounded cylindrical or long ellip- 

 soid, 6-12x3-6 mikrons, or sometimes larger, colorless or light 

 yellow. 



On excrement of animals and various organic substances the 

 world over. 



In specimens I have examined the spores are regularly 8-10 

 mikrons about half as wide and rather strongly tinged witli 

 yellow. 



Mucor racemosus Fresenius. Beitraege. 12. 1850. 



Pleurocystis fresenii Bonordex. 1851. 

 Chlamijdoinucor racemosus Brefeld. 1890. 

 Fischer givos as synonyms the following names which are 

 in the Sylloge Fungorum: 



M. truncorum Lk. 

 M. Juglandis Lk. 

 3t. carnis Lk. 

 M. pygmueus Lk. 



M. fungkola (Cda.) Berl. and De Toni. 

 3r. florae (Cda.) Berl. and De Toni. 

 M. cbiereus (Preuss.) Berl. and De Toni. 

 M. gviseiis Bon. 

 M. juglandis Lk. 1809, is the earliest name which can with 

 some certainty be referred to this species. According to 



