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best small unit for Myxomycetes on Long Island, and in the past 

 15 years about 120 species have been found there. No matter what 

 the weather has been prior to an outing, there is always something 

 to see or find, and with good conditions on other occasions as 

 many as 40 species have been observed fruiting at one time. 



The party, consisting of 11 persons, met at the Mineola rail- 

 road station at 11 a.m. where cars were waiting to take them to 

 the rendezvous. An inspection of some manure piles yielded 

 Fuligo cinerea (Schw.) Morg., usually found on such habitats, 

 together with some associated species. After that came lunch under 

 a spreading tree, during which Mr. Charles E. Mohr of the Phila- 

 delphia Academy of Natural Sciences displayed a number of beauti- 

 ful transparencies of Myxomycetes that he had photographed in 

 natural colors ; Mr. Frank G. White exhibited specimens collected 

 by him during the summer ; and I explained the characters of about 

 25 rare or interesting forms found in the Great Smoky Mountains 

 National Park in August. The afternoon was spent in roaming 

 through the forest, examining rotten logs, brush piles, and dead 

 leaves, which search brought about 20 species in all, less than 

 usual, because the drought of the preceding summer was not con- 

 ducive to the abundant appearance of the fruiting bodies. Note- 

 worthy examples among the forms collected were Physarum Icuco- 

 pus Link, a new record for Long Island; Physarum hogoriense 

 Racib., which has been found only once before on Long Island; 

 and splendid developments of the beautiful Physarum melleum 

 (Berk, and Br.) Massee. The most interesting features of the trip 

 were the field observations on the species Physarum polycephalum 

 Schw. During our visit to the same area in June, a development of 

 the common oyster mushroom was noticed on the sides of a tree 

 about 15 feet from the ground. One of the party climbed the tree 

 and brought it down when it was found to be covered with the 

 yellow Plasmodium of an unknown slime-mold. Several of the party 

 who took portions of the plasmodium reported to me that it had 

 developed sporangia of P. polycephalum. During the present foray 

 many specimens of the oyster mushroom were observed, and in 

 almost every instance the plasmodium was feeding thereon, or 

 it was covered with the fruiting bodies in various stages of 

 maturity. Finally a mushroom was found close to the ground with 

 a large plasmodium transforming itself into fruit, and the mature 



