Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.

卷须不分枝或二叉。通常花序一多歧聚伞花序。圆，倒卵球圆，或倒三角，平滑表面，具皱褶，或具瘤状或肋。

The VERL, a giant, unbranched glycoprotein comprising 30% of the VE, exists in the vitelline envelope and fuses with lysin by species-specificity.

鲍卵细胞膜上存在细胞溶素受体，它是大不分支糖蛋白分，占据了卵黄膜30％组分，可以专一性地与细胞溶素相结合。