Mycological Bulletin 



No. 86 



fF. A. KcUcvman, Ph. D., Ohio State University 

 Columbus, February, 1008 



i;i;t a \\( )ri) p.y the editor 



We can not eat moulds, but we can study them. Su])t. 

 Sunistine gives us another lesson — this time dealing with some 

 rare species. Ilis outline drawings give faithfully their ap])ear- 

 ance under the microscope. 



The illustration of the Puff-balls will be enjoyed by alt. 

 Air. Smith has promised many specimens of his handiwork, and 

 when we have good photographs we can get good half-tones. 

 We are indebted to him also for some account of the pear-sha|)ed 

 Lycoperdon. 



AK^RE AIOIT.DS 



D.WII) k. Sl'MSTIXl-:. 



.\l)iiin "JiHi s])ecies df .\b)ulds liave l)cen described. Alter 

 (kducling the ])r(il)abk' s\nc)n\nis and excluded species, there 

 remain about K!<i good s])ecies. ( )f this number onl\- twelve or 

 ]x)ssibly fifteen species have been rei)orted for America. I'his is 

 a very small number for dur C(>uulr\- ci)m])ared with the whole 

 number of known s])ecies. 



'Hie i'"uro])ean mycologists have carefully studied the life 

 hi^iory di' many lun-oi)ean sjiecies, but the American forms have 

 received \ery little attention. 



In my critical study ot' the faiuiK M iicoraccac. two iuterest- 



ing sj'jccies were recent I \ found. These species. howe\er. do not 



C^ belong to the taniih M iicnritcritt'. The s])ores are not enclosed 



^ in a si)orangium as in the common l)lack mould, but are borne 



-^ sin^l\- oi- in cliains ou en'aru'ed cells. 



lUJ 



