Psychotria is a genus containing some 1900 species within the plant family Rubiaceae. Members of the genus are small understorey trees in tropical forests. The former genus Cephaelis is considered a synomym of Psychotria.

Cave Diver, Anhumas Abyss, Bonito, Brazil: The Anhumas Abyss is an underground cavern with a crystal-clear lake below, more than 260 feet (79 m) deep. A visitor must enter through a narrow opening at the top of the chamber and rappel into the cave. Snorkeling and scuba diving in the lake reveal amazing scenery. Distinctive, conical limestone stalagmites and stalactites occupy the lake and the surrounding area, some reaching 65 feet (20 m) high. (Photo by Marcio Cabral/Nature’s Best Photography Awards 2017)

Michael O’Neill won a prize in animal portraits with fry of a peacock bass hovering around their mother for protection against predators in South Florida. (Photo by Michael Patrick O'Neill/2016 National Geographic Nature Photographer of the Year)

Bornean orangutan (Pongo pygmaeus). Tanjung Puting National Park, Borneo – winner of the gold and grand prizes in the 2020 world nature photography awards. (Photo by Thomas Vijayan/World Nature Photography Awards)

“Danger in the mud” – a crocodile at Mana Pools National Park, Zimbabwe. The grand prize winner. (Photo by Jens Cullmann/World Nature Photography Awards 2022)

Nose to Nose; Human/Nature winner. “Doug Gimesy was documenting work at the Joey and Bat Sanctuary near Melbourne when he met a wombat (Vombatus ursinus) whose mother had been killed by a car. Gimesy watched as a young veterinary student bottle-fed the orphaned joey, then touched her nose to the joey’s in a tender moment of interspecies bonding”. (Photo by Doug Gimesy/BigPicture)

1st Place in Wildlife: A male orangutan peers from behind a tree while crossing a river in Borneo, Indonesia. (Photo by Jayaprakash Joghee Bojan/National Geographic Nature Photographer of the Year contest 2017)

A boy poses with a butterfly on his face during a photocall to promote the “Sensational Butterflies” exhibition at the Natural History Museum in central London, on March 25, 2013. With around 400 live tropical butterflies and moths living in the temporary facility, visitors will get the chance to see them flying freely as well as looking for emerging butterflies at the hatchery window. Running from March 29 to September 15, 2013, the exhibition is housed in a structure in the museum grounds. (Photo by Leon Neal/AFP Photo)