Your view seems most ingenious and probable; but ascertain in a good many cases that the nectar is actually within the staminal tube.
"More Letters of Charles Darwin Volume II" by Charles Darwin
The blossom is male (staminate) in its first stage and female (pistillate) in its second.
"Wild Flowers Worth Knowing" by Neltje Blanchan
Branch, with staminate flower-buds expanding.
"Outlines of Lessons in Botany, Part I; From Seed to Leaf" by Jane H. Newell
Connat; stamin 4, petal opposita; styli 4.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
These staminate flowers produce pollen and then die.
"The First Book of Farming" by Charles L. Goodrich
Are the blossoms pistillate or staminate?
"Trees, Fruits and Flowers of Minnesota, 1916" by Various
Craig, Brag and Comet, the only ones which have borne staminate flowers do not seem too hardy in the catkins however.
"Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting" by Northern Nut Growers Association
Structure partly staminal, partly carpellary.
"Vegetable Teratology" by Maxwell T. Masters
Each spikelet contains a single perfect flower and sometimes in addition a staminate flower just below the perfect flower.
"A Handbook of Some South Indian Grasses" by Rai Bahadur K. Ranga Achariyar
Staminate parent of Boone.
"Northern Nut Growers Association, Report of the Proceedings at the Fourth Annual Meeting" by Various
After pollination the pistillate flower closes and becomes the conelet, the staminate flowers withering and falling away.
"The Genus Pinus" by George Russell Shaw
Sometimes the staminate blooms are destroyed by frost while the pistillate ones escape.
"The Pecan and its Culture" by H. Harold Hume
Figure 51 shows staminate and perfect clusters on one vine.
"Manual of American Grape-Growing" by U. P. Hedrick
Staminate and pistillate flowers are usually found on the same tree, as in the Oaks, Birches, Chestnut, etc.
"Trees of the Northern United States" by Austin C. Apgar
Staminate and pistillate portions of the flower-spike contiguous, the latter 2.5 cm.
"The Plants of Michigan" by Henry Allan Gleason
I know of but two bushes in Concord, and they, being staminate plants, do not bear fruit.
"Cape Cod" by Henry D. Thoreau
In the staminal whorl especially it is common to find additional rows.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5" by Various
The staminate and pistillate flowers are usually on different trees.
"Forest Trees of Illinois" by Fuller George D.
At the bases of the new shoots cluster the staminate catkins, in early June.
"Trees Worth Knowing" by Julia Ellen Rogers
Trees, with alternate pinnate leaves, no stipules, and monoecious flowers, the staminate in aments.
"The Manual of the Botany of the Northern United States" by Asa Gray