The few shipments without a clear place of origin must be planted and grown before biologists are willing to guess the seed's name and abilities.
對於來路不明的種子，光從外表根本猜不出它的身世，這時工作人員只好親自去種，隨侍在側地觀察它整個成長過程，詳細記錄，才能算做到「驗明正身」。