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Lord EM, Eckard KJ. Incompatibility Between the Dimorphic Flowers of Collomia grandiflora, a Cleistogamous Species. Science. 1984;223(4637):695-6doi: 10.1126/science.223.4637.695.
Lord, E. M., & Eckard, K. J. (1984). Incompatibility Between the Dimorphic Flowers of Collomia grandiflora, a Cleistogamous Species. Science (New York, N.Y.), 223(4637), 695-6. https://doi.org/10.1126/science.223.4637.695
Lord, E M, and Eckard, K J. "Incompatibility Between the Dimorphic Flowers of Collomia grandiflora, a Cleistogamous Species." Science (New York, N.Y.) vol. 223,4637 (1984): 695-6. doi: https://doi.org/10.1126/science.223.4637.695
Lord EM, Eckard KJ. Incompatibility Between the Dimorphic Flowers of Collomia grandiflora, a Cleistogamous Species. Science. 1984 Feb 17;223(4637):695-6. doi: 10.1126/science.223.4637.695. PMID: 17841029.
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Science. 1984 Feb 17;223(4637):695-6. doi: 10.1126/science.223.4637.695.

Incompatibility Between the Dimorphic Flowers of Collomia grandiflora, a Cleistogamous Species.

Science (New York, N.Y.)

E M Lord, K J Eckard

PMID: 17841029 DOI: 10.1126/science.223.4637.695

Abstract

The cleistogamous species Collomia grandiflora produces dimorphic cross-incompatible flowers on a single plant. The open or chasmogamous flower has smaller, flask-shaped stigmatic papillae, larger pollen grains, longer styles, and faster pollen tube growth rates down the style than the closed or cleistogamous flower. In intermorph crosses, pollen tube growth rates are greatly decreased and fertilization does not occur.

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