spicate

Aquatic or marsh herbs; flowers perfect or polygamo-dicious, small, axillary or spicate; petals often none.

Flowers perfect, pedicellate, sometimes subsessile and thyrsoid-spicate.

Antheridia large, pedicelled, solitary in the axils of 2-cleft spicate leaves.

Many flowers from the axil of a bract; no bractioles interspersed, hence we may expect racemose or spicate partial inflorescences.

In Grasses, as indeed in other plants with a spicate inflorescence, this change occurs not unfrequently.