. Elementary botany . Fig. 267. Branch of white pine showing young female cones at time of pollination on the ends of the branches, and one-year-old cones below, near the time of fertilization. this time the ovule lias exuded a drop of a sticky fluid in this depression between the curved processes at its lower end. The pollen sticks to this, and later, as this viscid substance dries up, it pulls the pollen close up in the depression against the lower
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany