There are aproximately around 2,500 species, best known member is the African Violets, Gloxinias, Lipstick Plant, and Cape Primroses.
African Violets prefers bright light, let soil dry between watering, and a humidity tray. To get them to bloom feed them African Violet food about once a month.
Epsica is also known as Flame Violets, a relative of the African Violets. Their leaves are larger, fuzzy, and comes in different colors. They like their soil to be kept evenly moist not overwatered especially during the winter season. If it does not bloom it needs more sun. Keep this plant trimmed from time to time they tend to grow a bit wild sending out shoots. They require humidity trays and don’t touch their leaves with water at any time. I do not suggest terrariums for any violets.
Cape Primrose, also known as Streptocarpus is a distant relative of the violets. The cape primroses likes their soil kept on the drier side, minimal waterings during winter season indoors. Bright light, they bloom all year long, after blooming pinch some of the tips off to keep plant healthy. They do like humidity tray but not really neccessary. Feed them from spring to fall about once a month with Violet food, or fish emulsions.
Streptocarpella is really the same as the one above but has larger leaves, and larger flowers. This is also a cape primrose, like the violets don’t touch their leaves with water.
Tasmanian Violets are different in appearance, their foliage is non fuzzy and don’t mind if you touch water on leaves. Their blooms looks like miniature violas or pansies. They prefer bright light and soil slightly dry between watering during the winter season. They are vigorious growers and should be potted into a hanging pot because this plant is a trailing plant.
Chirita is a relative of the Cape Primrose, slightly different in appearance.
Teeny Bopper trailing violets is one of the smallest varieties of the violets, small tiny heart shape foliage with little purple blooms. Same care as the African Violets.
Begonifolia-Petro is also in the violet family, care for them is the same as the African Violets.
Gloxinias- Do not touch leaves with water, keep soil evenly moist but do not over water. Bright indirect light is prefered.
Lipstick Plant -Bright light, keep soil more on the drier side during winter season indoors.