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

Indeed, the earliest growth which carries the very short caulicle out of the shell comes from the formation of foot-stalks to the cotyledons; above these develops the strong plumule, below grows the stout root.

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

For example, the single plumule which develops from a germinating wheat embryo has at its upper end a hundred or more tiny growing points.

From The Chemistry of Plant Life by Roscoe Wilfred Thatcher

Cotyledons very thick and fleshy, their contiguous faces coherent, remaining under ground in germination; plumule 2-leaved; radicle curved.—Trees or shrubs.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Grain of Indian Corn in germination, the ascending sprout is the first leaf of the plumule, enclosing the younger leaves within, at its base the primary root has broken through.

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