Definitions / Explanation:
$1.$ Geitonogamy
$2.$ Coleorrhiza

(N/A) $1.$ Geitonogamy: Transfer of pollen grains from the anther to the stigma of another flower of the same plant. Although geitonogamy is functionally cross-pollination involving a pollinating agent,genetically it is similar to autogamy since the pollen grains come from the same plant.
$2.$ Coleorrhiza: At its lower end,the embryonal axis has the radicle and root cap enclosed in an undifferentiated sheath called coleorrhiza.