vol. ii. p. 239). As, however, they have no relation to our present subject, I shall not now dwell upon them. I pass on, therefore, to the genus Primula. If a number of specimens of primroses or of cowslips be examined, we shall find that about half of them have the pistil at the top of the tube,… … x aso FIG. 38.— Primula (long-styled form). FIG. 39.— Primula (short-styled form). differences occur in Polyanthus and Auricula, and have long been known to gardeners, and even to schoolchildren, by whom the two forms are distin- guished as " thrum-eyed " and " pin-eyed." As already mentioned,…
Flowers -- Color · Fertilization of plants by insects · Plants -- Variation
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