 <unk> fruit body types are either roughly spherical or <unk> , occasionally with <unk> , and usually have a peridium that is either simple or multi @-@ layered . <unk> gasteroid fruit bodies generally open irregularly at maturity to expose a powdery gleba with a color ranging from white to yellow or black @-@ brown to black . <unk> are generally absent from the gleba . <unk> are spherical or nearly so , and have a surface texture that ranges from smooth to <unk> @-@ like and spiny , or sometimes with <unk> . <unk> have clamp connections . 
