flexuosa, Clusia spp., Euterpe precatoria, Jacaranda copaia, etc. Plant species found in the mountain zones in the park include: Podocarpus oleifolius, Prunus integrifolia, Cyrtochilum aureum, Escallonia myrtilloides, Hesperomeles ferruginea, Otoglossum scansor, Baccharis salicifolia, Cinchona pubescens, Oreopanax spp., Polylepis pauta, Alnus acuminata, Retrophyllum rospigliosii, Vallea stipularis, etc. In 2021, the so-called “Manu Mystery Plant,” a small tree, with tiny white flowers and ribbed, bright orange fruit, was determined to be a distinct genus, which was named Aenigmanu (the enigma of Manu). The plant, first collected in 1973 by Field Museum ecologist Robin Foster, had puzzled experts for decades. DNA analysis revealed it to be related to the Picramniaceae; but unlike this family, the Aenigmanu has stipules on its stems where the leaves emerge. Fauna About 160 species of mammals have been reported in the park. Mammals found in the lowland rainforest zone of the park include: the jaguar, the tayra, the giant armadillo, the puma (also present in mountainous areas), the ocelot, the collared peccary, the giant otter, the Peruvian spider monkey, the Mexican free-tailed bat, the jaguarundi, the capybara, the tufted capuchin, the white-lipped peccary, the greater bulldog bat, the Southern Amazon red squirrel, the marsh deer, the water opossum, the red brocket, the brown-throated sloth, the black-capped squirrel monkey, the South American tapir, the southern tamandua, the moustached tamarin, the pacarana, etc. Mammals reported from mountain zones in the park include: the white-tailed deer, the Andean fox, the mountain paca, the long-tailed weasel, the montane guinea pig, the spectacled bear, etc. More than 1000 bird species have been estimated to exist in the park. Birds reported for the lowland rainforest in the park include: the great tinamou, Spix's guan, the rufescent tiger-heron, the blue-and-yellow macaw, the silvery grebe, the harpy eagle, the long-billed starthroat, the snowy egret, the king vulture, the scarlet macaw, the roseate spoonbill, the blue-crowned trogon, the turquoise tanager, the Amazonian pygmy owl, the blue-headed parrot, etc. Birds present in the mountain zones in the park include: the Andean tinamou, the great horned owl, the torrent duck, the yellow-billed pintail, the amethyst-throated sunangel, the Andean guan, the puna ibis, the golden-collared tanager, the Andean condor, the collared inca, the solitary eagle, the Andean cock-of-the-rock, the mountain caracara, the mitred parakeet, the sapphire-vented puffleg, the giant hummingbird, etc. The 155 amphibian species found in the park include: Atelopus erythropus, Bolitoglossa altamazonica, Chiasmocleis ventrimaculata, Dendropsophus acreanus, Dendropsophus koechlini,