1.-)0 



Mycniogical Bulletin No. .18 



[Vol. Ill 



Previous Discission and Illustration of the Morels. — These plants 

 are very interesting and naturally we expect much to be said about them 

 in the Bulletin. Turning back, we find that the subject has been reported 

 in print or engravings on the following pages: 2, 5, (>, 7, 11, 13, 14, 21, 27, 

 129, and 135. All this with wliat has been added in this No. will doubtless 

 satisfy the most exacting patron — until the Morel le season opens again 

 next year. 



The GrNi"s Om-pha'-li-a. — These white spored Agarics are tersely 

 described as follows by Professor Atkinson: 'i"he Genus Oinphalia is 

 closely related to Mycciia and Collybia. It differs from these mainly in the 

 decurreiit gills. In the small species of M.vrrHa, where the gills are slightly 

 decurrent, the pileus is not umbilicate as it is in the corresponding species 

 of Oi)iphalia. In some of the species of Omphalia the pileus is not um- 

 bilicate, but here the gills are plainly decurrent. The stem is cartilaginous." 



The Species of Om-pha'-li-a. — There are between thirty-five and 

 forty American species of this genus, some of them very common and 

 abundant ; they are usually small and occur mostly in the woods. One of 

 the commonest and most widely distrilnUed is Om-pha'-li-a cam-pa-nel'-la 

 or Bell Omphalia. It may be found throughout the summer and autumn 

 on rotter, logs, stumps, etc., in shady moist woods. Its pileus is umbilicate, 

 faintly striate and of a dull reddish color. The gills are narrow and con- 

 nected by veins and decurrent on the .stem. Another species is Om-pha'-li-a 

 ep-i-chy'-si-um. distinguished by its smoky or dull gray color, the depressed 

 or funnel-shaped pileus and short, slender stem. The species shown in 

 this No. of the Bulletin is Om-pha'-li-a um-bel-lif'-er-a, whose character- 

 istic cluster habit is amply illustrated in Fig. 12"). 



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