Statement A: Sheathing leaf bases are common is MonocotsStatement B: Gloriosa has sheathing leaf base.

Sheathing leaf bases are commonly seen in Monocots such as palms and grasses. Some members of other monocot families like Liliaceae, Musaceae also have sheathing leaf bases. Though Gloriosa is a monocot and belongs to family Liliaceae, it is not having sheathing leaf base but has sessile leaf with normal leaf base.