- ... and how they protect their pollen; role of bees in pollen ‘transfer; poor man's orchid which catapults its pollen when insect alights; lupin flower whose pollen paste is pushed forward by a piston to strike body of bee seeking nectar; snapdragon; meadow sage. Members of composite ...
- NLM Digital Collections - The descent of man, and selection in relation to sexPublication: New York : D. Appleton and Company, 1898... 495. ——, Hermann, emergence of bees from pupa, 217 ; pollen-gathering of bees, 232 ; proportion of sexes in bee-', 258 ; courting ...
- NLM Digital Collections - A manual of laboratory studies in biology : to accompany Linville's The biology of man and ...Publication: New York : Harcourt, Brace and Company [1924]... of the pistil? Would the stigma receive the pollen as the bee goes into the corolla tube or as it ...
- NLM Digital Collections - Elements of botany, or, Outlines of the natural history of vegetables: in two volumes (Volume ...Publication: Philadelphia : Desilver, 1827... of vegetable generation*. By robbing plants of their pollen, do not bees con- tribute not a little to that vast ... urged in support of this conjecture. To the pollen of vegetables and the labours of the bees mankind are indebted for a very important arti- ...
- NLM Digital Collections - Elements of botany: or Outlines of the natural history of vegetables : illustrated by forty ...Publication: Philadelphia : Printed for the author, 1812-1814... of vegetable generation*. By robbing plants of their pollen, do not bees contri- bute not a little to that vast ... precise nature of the matter by which the pollen is converted into wax, in the stomach of the bee. Experiments will, in all probability, show, that the ...
- NLM Digital Collections - Elements of botany, or, Outlines of the natural history of vegetablesPublication: Philadelphia : Desilver, 1836... vegetable genera- tion. By robbing plants of their pollen, do not bees contribute not a little to that vast variety ... urged in support of this conjecture. To the pollen of vegeta- bles and the labour of the bees, mankind are indebted for a very im- portant ...
- NLM Digital Collections - The Suppressor-Mutator System of Control of Gene Action in MaizePublication: Produced: October 1959... plant ess) 1 (Pr Spm/pr +) © “ae 3, “bee From pollen = cultures 6880 and 6881, table :» From self-pollinated ...
- NLM Digital Collections - The Suppressor-Mutator System of Control of Gene Action in Maize (Tables & Notes, pages ...Publication: Produced: October 1959... plant ess) 1 (Pr Spm/pr +) © “ae 3, “bee From pollen = cultures 6880 and 6881, table :» From self-pollinated ...
- ... The flowers do not secrete nectar but the bees are attracted by pollen in the open flower head and the pollen ... actual speed. Model shown with stigma Projecting, model bee again visits it carrying pollen on its body from another flower. GERMINATION—-PHOTOMICROGRAPH ...
- NLM Digital Collections - The elements of materia medica and therapeutics (Volume 2)Publication: Philadelphia : Lea and Blanchard, 1846... one time sup- posed to be merely the pollen of plants elaborated by bees. Bonnet, however, so early as 1768, asserted it ... assertion. The latter writer, indeed, proved that the pollen is not at all essential to the production of wax, for bees fed on honey and waler equally secreted it, ...
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