00266nam a22001217a 4500020001500000082001700015100002000032245002700052250000600079260004000085300000800125650001100133  a9814126497  a581.4bESA/A  aEsau, Katherine  aAnatomy of Seed Plants  a2  aNew YorkbJohn Wiley and Sonsc1960  a550  aBotany