Nutation (botany) flowers to open or close by movements which resemble the simple nutation of dorsiventral organs. Thus, the tulip, crocus, and other vernal flowers are very sensitive to changes in temperature. The crocus can perceive a change of 0.5°C (0.9°F), and will respond to a change of 20°C (36°F) in two minutes. Nutation (botany) Nutation is the bending movements executed by some plant organs, such as stems, leaves, roots, etc., by which the part is inclined successively in various directions. Nutations are due to the unequal rate of growth of different sides of the organ, an inequality which, so far as
Kamay Botany Bay National Park part of the first landing of the "Endeavour" in Australia. Banks and Solander collected a large number of iconic Australian plant species, including some that later became type-specimens which have important scientific and research value. Botany Bay lies within a small tectonic depression known as the Botany Basin which in turn is situated within the larger Sydney Basin comprising modified sedimentary deposits laid down about 270 million years ago during the Permian period. The northern and southern headlands featuring Hawkesbury sandstone cliffs which were formed during the Triassic period, between 200 and 250 million years ago. On the Kurnell peninsular,