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.

A dhobi, or a washerman washes cloths on the banks of the River Gomti in Lucknow, India, Saturday, September 12, 2020. Dhobis are traditional laundry workers who wash clothes by hand and dry them in the sun, an occupation which has been in existence for generations. Most cities in India have a Dhobi Ghat, or washermen's area, where the city's pile of clothes is laundered. This practice is still popular in India, despite of modern technology. Around 1,000 families work in Lucknow's Dhobi Ghat. However, in light of the novel coronavirus, their wages have decreased drastically. With each family earning around US$100-200 per month. (Photo by Rajesh Kumar Singh/AP Photo)

Nyibol Lual, 13 years old, helps her family to prepare the land for cultivation on May 31, 2017, in Panthau, Northern Bahr al Ghazal, South Sudan. The family has a small land where they cultivate sorghum. An estimated 63 per cent of the population in Northern Bahr al Ghazal is experiencing severe food insecurity, according to the latest Integrated Food Security Phase Classification (IPC) report. The situation is particularly bad in Aweil West and Aweil South counties, where the exhaustion of household food stocks and growing dependence on financially inaccessible markets have left the population facing Emergency levels of food insecurity. (Photo by Albert Gonzalez Farran/AFP Photo)

Beesan al-Jubeh, (L), Palestinian under-10 national karate champion, trains with her father Sami (R) and other family members, all wearing face masks and gloves due to the COVID-19 coronavirus pandemic, outside their house in the city of Hebron in the Occupied West Bank on April 9, 2020. (Photo by Hazem Bader/AFP Photo)

4-year-old Tasmina adjusts her protective face mask as she waits with her family for a train at a railway station, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan on June 9, 2020. (Photo by Akhtar Soomro/Reuters)

One of the most significant challenges related to cancer in Nepal is the lack of awareness around the prognosis of the disease, as many patients, their families and even healthcare professionals consider cancer to be an incurable disease at any stage. This results in significant delays in bringing patients to hospitals, and high rates of advanced stage cancers and mortality. (Photo by Omar Havana)

An undated handout picture made available on 29 April 2016 by the Toronga Zoo shows a baby echidna making a remarkable recovery after being attacked by chickens in a family's backyard at the Taronga Zoo in Sydney, Australia. (Photo by EPA/Taronga Zoo)