Definition: Sphaerothecina is a type of plant that has a spherical shape, which can be found in various ecosystems such as rainforests and deserts. These plants are known for their ability to absorb water efficiently from the soil and use it for growth without the use of other nutrients. Sphaerothecina also exhibit some unique adaptations, including the presence of specialized cells called spherocytes that help them conserve energy during photosynthesis.