Today I found Xylocoremium flabelliforme comfirmed microscopically, I have seen it several times before but always by itself.  Today I found it with a Xylaria.  Looking at the Xylaria under the microscope all I could find was a single spore 6 X 3.5 um.  It looked just like a Xylaria spore but it did not have a germ slit.  I am not certain where it came from.  Looked for over an hour and I could not find any other spores.   I do not want to make a false assumption on the single spore because I do not know where it came from since that is all I found.  By doing a little reading it leads me to believe it may be Xylaria cubensis.  There were a number of Xylaria longipes about 100 feet away.  I have found X. longipes many times before but I never found X. cubensis.  Does anyone know if there is a way to macroscopically tell them apart?  From checking herbarim records it appears that Xylaria cubensis has not been collected in Pennsylvania before and I am very intrested in this.   Thank you,
 John