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inspiring sight for a mycologist. Rex stated that the plasmodium 

 of this species is deep violet-black, but unfortunately no trace o' 

 Plasmodium could be seen on or in the log to verify this. About 

 five stations for this species are reported. 



During the same summer Clastoderina DeBaryanuni was found 

 at the same place. This species is also difficult of detection, 

 though in a different way. The sporangium is globose, less than 

 a fifth of a millimeter in diameter, mounted upon a stalk as fine 

 as gossamer. When dry it is difficult of detection, and even 

 when seen may readily be passed by under the impression that it 

 is a mould. 



A few scattering specimens were first found, but later a log 

 was found and kept under observation which seemed to be com- 

 pletely filled with its plasmodium. This appeared at frequent 

 intervals, covering the log with a pale yellow network of plas- 

 modial threads, changing over night to a thick growth of the del- 

 icate sporangia. So far as I know this is the only time that its 

 Plasmodium has been observed with certainty. Later this species 

 was found in Ohio and in North Carolina. 



During the past summer the third species noted, Onbraria 

 minntissima^ was found in North Carolina, near Asheville. This 

 seems the daintiest and most elusive of the Cribrarias. It is so 

 minute that even after it has been found and mounted in the her- 

 barium it is difficult to detect the delicate sporangia on the bit of 

 wood which has been mounted. It seems to be fairly common 

 at Asheville, but it is our most difficult species to locate. 



Two facts doubtless account for the few recorded stations of 

 these three plants. Their small size manifestly is one of these 

 reasons. Upon an old log in dense woods each of them will defy 

 any but the very closest scrutiny. In addition, it must be kept 

 in mind that it is only when the sporangia have been formed 

 that they are visible at all, and while the plasmodium may be 

 present in large quantity, the period in which the sporangia are 

 formed may be so short that it is easily missed. 



At Havana, for instance, the beach along the Illinois River 

 was thickly covered with old decorticated logs. These were ex- 

 amined regularly through the summer, three times a week. 



