Subscribe Apple | Google | Spotify | Stitcher | iHeart   Support The Daily Gardener Buy Me A Coffee    Connect for FREE! The Friday Newsletter |  Daily Gardener Community   Historical Events 1771 Birth of Xavier Bichat ("bee'shah"), French anatomist and pathologist. Remembered as the father of modern histology, or the study of tissues. In his work, Xavier did not use a microscope and still discovered 21 distinct types of tissues in the human body. His work accelerated and transformed the way doctors understood disease. Sadly, Xavier died accidentally in his early thirties in 1802 after falling down the steps of his hospital. Today, Xavier Bichat's name is one of the 72 names inscribed on the Eiffel Tower. A lover of nature, Xavier's work was grounded in observations from the natural world. Charles Darwin quoted Xavier in his book The Descent of Man. The great botanist Bichat long ago said, if everyone were cast in the same mould, there would be no such thing as beauty.  If all our women were to become as beautiful as the Venus de' Medici, we should for a time be charmed; but we should soon wish for variety; and as soon as we had obtained variety, we should wish to see certain characteristics in our women a little exaggerated beyond the then existing common standard.   The beauty of nature and the secret to that beauty is in nature's diversity and the ephemeral nature of all things - the seasons, flowers, the weather, etc., Xavier also wrote, Life is the sum of forces resisting death.   1776 Birth of Henri Dutrochet, French physician, botanist, and physiologist. After studying the movement of sap in plants in his home laboratory, Henri discovered and named osmosis. Henri shared his discovery with the Paris Academy of Sciences on October 30th, 1826. Like the cells in our human bodies, plants don't drink water; they absorb it through osmosis. Henri also figured out that a plant's green pigment, chlorophyll, is essential to how plants take up carbon dioxide. Hence, photosynthesis could not happen without chlorophyll. It turns out chlorophyll helps plants gather energy from light. And if you've ever asked yourself why plants are green, the answer is chlorophyll. Since it reflects green light, chlorophyll makes the plant appear green. As for Henri, he was a true pioneer in plant research. He was the first to examine plant respiration, light sensitivity, and geotropism (How the plant responds to gravity, i.e., roots grow down to the ground.) Geotropism can be confusing at first, but I think of it this way: The upward growth of plants - fighting against gravity - is called negative geotropism, and the downward growth of roots, growing with gravity, is called positive geotropism. And there's a tiny part of the plant at the very end of the root that responds to positive geotropism, and it's called the root cap. So, what makes the roots grow downward? The small but mighty root cap - responds to positive geotropism.   1907 Birth of Astrid Lindgren, Swedish writer of fiction and screenplays. Astrid is remembered for several children's book series, including Pippi Longstocking. She wrote more than 30 books for children and has sold 165 million copies. In January 2017, Astrid's prolific work made her the fourth most translated children's author trailing Enid Blyton, Hans Christian Andersen, and the Brothers Grimm. Astrid was a flower lover. In her book, Mio, My Son, Astrid wrote, He turned to the Master Rose Gardener and said something even more peculiar, "I enjoy the birds singing. I enjoy the music of the silver poplars." In her book, Most Beloved Sister, Astrid wrote, Then the flowers stopped singing and the trees stopped playing, and I could no longer hear the brook's melody.  "Most Beloved Sister," said YlvaLi. "When Salikon's roses wither, then I will be dead.'   And in Astrid's story Bullarbyn, the maid Agda tells a group of girls that if on Midsummer night, they climb over nine fences and pick nine different flowers in complete si