. Contributions from the Botanical Laboratory, vol. 1. Botany; Botany. 8. 10 Wilson on Wi/son.—Observations on Epigcea repens, L. 63 Whether this higher percentage of females under severer conditions of environment, indicates an actual production of more female forms than males ; or whether an equal number of both forms are not produced in the first place, the males being reduced later by stress of surroundings, will necessitate more careful experimentation for determination. Observations from any one living in localities where E, repens grows, are kindly asked for. EXPLANATION OF PLA


. Contributions from the Botanical Laboratory, vol. 1. Botany; Botany. 8. 10 Wilson on Wi/son.—Observations on Epigcea repens, L. 63 Whether this higher percentage of females under severer conditions of environment, indicates an actual production of more female forms than males ; or whether an equal number of both forms are not produced in the first place, the males being reduced later by stress of surroundings, will necessitate more careful experimentation for determination. Observations from any one living in localities where E, repens grows, are kindly asked for. EXPLANATION OF PLATE VIII. Illustrating Dr. W. P. Wilson's, paper on Epigcea repens L. Figs. I, 2 and 3 show sections of pistillate flowers with varying length of styles. Figs. 2 and 3 show rudiments of stamens. Fig. 4 shows a vertical section of a pistillate flower with complete stamens. The anthers are, however, without pollen and shrivelled. All four figures show the star-shaped stigma of the pistillate flowers. Figs. 5, 6, 7 and 8 represent vertical sections of staminate flowers with varying lengths of filaments and styles. They show the closed character of the stigma in the staminate form in which it never opens. Fig. 9 represents a male flower, with its large and generally less colored corolla. Fig. 10 represents a female flower. Figs. 9 and 10 show the relative size of the two sexes. The female is generally about one-third smaller than the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory. Philadelphia : University of Pennsylvania Press


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1892