ace. Our illustration represents varieties of the white and Roxburghii, Wall. The species is dioecious. The malt Dimorphic Females of Butterflies.—Insect Life says : yellow daisy and of the common and Canada thistle. receptacles or figs contain perfect male flowers with It is a well known fact that… … DAISIES AITD THISTLES. with slender spines. The male simply on hypertrophy of the tis- heads have more conspicuous flow- sues of the receptacle, resulting ers than the female heads. This plant has long been from stimulation caused by the visits of the fig insects. doptera the male sex is constant…
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