The Lotus Eaters
Author: Stanley Weinbaum
Published: 1935
Source: Project Gutenberg
A month after the events in "Parasite Planet", Hamilton "Ham" Hammond and
Patricia Burlingame are married, and thanks to Burlingame's connections, the
two have been commissioned by the Royal Society and the Smithsonian Institution
to explore the night side of Venus. There they find a species of warm-blooded
mobile plants with a communal intelligence that Burlingame nicknames Oscar.
Oscar is very intelligent, quickly picking up English from Hammond and
Burlingame. […]
(Wikipedia)