Plant-life, with 74 full-page illus., 24 being from photos, by the author and 50 in colour from drawings . bees, are attracted by perfumesthat are delightful to the olfactory sense of man, whilethere are some insects that are peculiarly charmed byodours to which human beings object. Flowers thatare adapted for pollination by night-flying insects,notably moths, have a strong scent, and are usuallylarge and of a white, or bright yellow, colour, so as tobe as conspicuous as possible in the gloom. Many ofthem do not open and display their attractions untilevening. The Evening Campion {Lychnis vesp
Plant-life, with 74 full-page illus., 24 being from photos, by the author and 50 in colour from drawings . bees, are attracted by perfumesthat are delightful to the olfactory sense of man, whilethere are some insects that are peculiarly charmed byodours to which human beings object. Flowers thatare adapted for pollination by night-flying insects,notably moths, have a strong scent, and are usuallylarge and of a white, or bright yellow, colour, so as tobe as conspicuous as possible in the gloom. Many ofthem do not open and display their attractions untilevening. The Evening Campion {Lychnis vespertina)is white, and has an agreeable perfume; it opens about6 , and does not close until about 9 Its rela-tive, the Red Campion (L. dioica) keeps the shop open,so to speak, during the day, and closes at night. UnlikeL. vespertina, which attracts moths, it benefits by theservices of bees. Honeysuckle {Lonicera Periclymenum)and the Butterfly Orchis (Habenaria bifolia) are pol-linated by moths, and in this connection we note thepale colour of the flowers, and that their scent is more PlATP A. SEA PLANTAIN {P/antago mayitima),1. Single flower, enlarged 2, Stamen B. BUCKS-HORN PLANTAIN [Planlago coronofm).3. Flower, enlarged 4. Cross-section through ovary C. RIBWORT PLANTAIN (Plantago lanceolata). 5. Fruit 6. Fruit dehiscing anS showing single seed INSECT POLLINATION 313 appreciable by night than by day. The Tobacco-planthas good-sized white flowers that open at night, and atthat time emit a strong perfume. The Evening Prim-rose {(Enothera biennis) has large yellow flowers, whichare arranged in a conspicuous spike, and open only atnight; they also are fragrant, and attract moths. It isprobable that in many insects the sense of smell iskeener than in man, and they can detect perfumes atdistances at which we should fail to recognize is in their antennae that the olfactory sense issituated. The smell of putrid meat and other decomposingmatter, while very offensi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
