Cinchona officinalis many-flowered; hypanthium with short coarse hairs; reddish calyx, glabrous or nearly so, with triangular lobes; pink or red corolla, sericeous, the lobes ovate, acute, the corolla tube being about 1 cm. long. Fruit and oblong capsule, 1.5–2 cm. long, almost glabrous. English: quinine, red cinchona, cinchona bark, Jesuit’s bark, loxa bark, Jesuit’s powder, countess powder, Peruvian bark. Spanish: quina, cascarilla, cargua cargua, corteza coja. French: quinquina, écorce du Pérou. "Cinchona officinalis" is a medicinal plant, one of several "Cinchona" species used for the production of quinine, which is an anti-fever agent. It is especially useful in the prevention and treatment
Tree trunk spider over an area of tree bark and wait hidden in plain sight for an insect to stray onto that patch. Once that occurs, they direct their spinnerets toward their prey and circle it; all the while casting silk on it. When the hapless insect has been thoroughly immobilized, they can bite it through its new shroud. For a picture, see or Tree trunk spider The tree trunk spiders are members of the tropical and semi-tropical family Hersiliidae. There are about 150 species in this family. These spiders have two very prominent spinnerets that are almost as long as their abdomen.