plumule

The axis, which is differentiated into the plumule directed upward and the radicle downward, is small and straight and it is covered more or less by the edges of the scutellum.

From A Handbook of Some South Indian Grasses by K. Rangachari

Nothing would be gained by elevating them, as they never grow out into efficient leaves; but the joint of stem belonging to the plumule lengthens well, carrying up its pair of real foliage-leaves.

From The Elements of Botany For Beginners and For Schools by Asa Gray

The larger part of it is the cotyledon, thickish, its edges involute, and its back in contact with the albumen; partly enclosed by it is the well-developed plumule or bud which is to grow.

From The Elements of Botany For Beginners and For Schools by Asa Gray

Plume′let, a down-feather, a plumule: anything resembling a small plume.—adj.

From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various

A grain cut through the middle in the opposite direction, dividing the embryo through its thick cotyledon and its plumule, the latter consisting of two leaves, one enclosing the other.

From The Elements of Botany For Beginners and For Schools by Asa Gray