孢囊群生,有柄,球形,直立或稍弯俯,榛褐色,有的深褐色至紫褐色,孢囊直径?0.49?mm,?杯托齐整,缘齿状不穿孔,占囊体?1/3?左右,有颗粒状的暗色线条自柄顶部辐射伸出,网节扁平多角形,扩大不加厚,内满含暗色原质粒,直径?2.5?µm,?网线细,散头多,有分枝;柄细长?1?mm?或稍长,下部暗色,上部浅色,有纵槽。孢子成堆时橙褐色,光学显微镜下淡黄褐色,球形或稍有角,有疣点,可见稀疏网纹,直径?7.5~9?µm。?Cribraria dictyospora G. W. Martin & Lovejoy, J. Wash. Acad. 22:92, 1932.