. Foundations of botany. Fig. 252. — Bees visiting Flowers. At the left a bumblebee on the flower of the dead nettle; below a similarbee in the flower of the horse-chestnut; above a honey-bee in the flowerof a violet. some plants, as the common catchfly, there is a stickyring about the peduncle, some distance below the flowers,and this forms an effectual barrier against ants and likeinsects. Very frequently the calyx tube is covered withhairs, which are sometimes sticky. How these thicketsof hairs may appear to a very small insect can perhapsbe more easily realized by looking at the considerab
. Foundations of botany. Fig. 252. — Bees visiting Flowers. At the left a bumblebee on the flower of the dead nettle; below a similarbee in the flower of the horse-chestnut; above a honey-bee in the flowerof a violet. some plants, as the common catchfly, there is a stickyring about the peduncle, some distance below the flowers,and this forms an effectual barrier against ants and likeinsects. Very frequently the calyx tube is covered withhairs, which are sometimes sticky. How these thicketsof hairs may appear to a very small insect can perhapsbe more easily realized by looking at the considerably ECOLOGY OF FLOWERS 361 magnified view of the hairs from the outer surface ofmullein petals, shown in Fig. 253.^ Sometimes the recurved petals or divisions of the corollastand in the way of creeping insects. In other cases the. Fig. 253. — Branching Hairs from the Outside of the Corolla of the CommonMullein. (Magnified.) dr, a gland.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1901
