Which of the following statement(s) is/are correct?

(i) Many plants belonging to the family Fabaceae are good ornamentals (Tulip, Gloriosa), source of medicine (Aloe) and vegetables (Asparagus).

(ii) The plumule and radicle are enclosed in sheaths which are called coleorhiza and coleoptile respectively.

(iii) A flower having either stamens or carpels is unisexual.

(iv) Basal, alternate, linear, exstipulate with parallel venation types of leaves is found in the family Liliaceae.