Coleoptile

(i) The epicotyl bearing shoot apex and leaf primordia is enclosed in a foliar structure called coleoptile.

(ii) Coleoptile has a terminal pore for the emergence of first leaf.

(iii) Coleoptile after emergence from soil during germination, becomes green and does photosynthesis.

Coleorhiza

(i) The radicle and root cap are enclosed in a sheath called coleorhiza.

(ii) Coleorhiza is a solid structure.

(iii) Coleorhiza does not come out of soil. It remains non green.