Plant callus (plural calluses or calli) is a growing mass of unorganized plant parenchyma cells.
Central America (América Central, Centroamérica) is the southernmost, isthmian portion of the North American continent, which connects with the South American continent on the southeast.
Disocactus is a genus of epiphytic cacti in the tribe Hylocereeae found in Central America, the Caribbean and northern South America.
Epiphyllum ("upon the leaf" in Greek) is a genus of 19 species of epiphytic plants in the cactus family (Cactaceae), native to Central America.
An epiphyte is an organism that grows on the surface of a plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it.
The Hylocereeae are a tribe of cacti.
Selenicereus, or moonlight cacti, is an epiphytic, lithophytic, and terrestrial cactus genus found in Central America, the Caribbean and northern South America.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation).
Pseudorhipsalis is genus of cacti.