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Abstract

Some Malpighiaceae produce minute cleistogamous flowers in addition to showy chasmogamous flowers. Standard techniques fail to reveal how the cleistogamous flowers achieve self-fertilization. Fluorescence in longitudinal sections shows that the pollen germinates inside the indehiscent anther. The pollen tubes then grow down through the filament, into the receptacle, up into the carpels, and into the nucellar beak of the ovule.

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References

CURRIER, H.B., ANILINE BLUE AND FLUORESCENCE MICROSCOPY OF CALLOSE IN BULB SCALES OF ALLIUM-CEPA L, PROTOPLASMA 45: 552 (1956).
NIEDENZU, F, PFLANZENREICH 4 141: 1 (1928).

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Published In

Science
Volume 207 | Issue 4433
22 February 1980

Submission history

Received: 23 July 1979
Published in print: 22 February 1980

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William R. Anderson
University of Michigan Herbarium, North University Building, Ann Arbor 48109

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