Scanning electron micrographs of seed coat microsculpturing patterns.

<p>(A)ZS-2, (B) ZS-4, (C) ZS-5, (D) ZS-6, (E)ZS-7, (F)ZS-8, (G)ZS-9, (H)ZS-10, (I)ZS-11, (J)ZS-13, (K)ZS-14, (L)ZS-15, (M)ZS-16, (N)XJ-4, (O)XJ-5, (P)XJ-6, (Q)XJ-7, (R)XJ-8, (S)XJ-9, (T)XJ-10, (U)XJ-11, (V)XJ-12, (W)XJ-13, (X)XJ-14, (Y) XJ-Baicheng, (Z) <i>B. campestris</i> (Hongkong, China), (AA) <i>B. nigra</i>(Australia), (BB) <i>B. nigra</i> (CRGC), (CC) <i>B. nigra</i> (Russia), (DD) <i>B. oleracea</i> (Wuhan, China), (EE) <i>S. arvensis</i> (France-1), (FF) <i>S. arvensis</i> (Canada), (GG) <i>S. arvensis</i> (France-2), (HH) <i>B. juncea</i> (Nanjing, China), (II) <i>B. juncea</i> (Xining, China), and (JJ) <i>B. napus</i> (Canada).