In the pursuit of seedless Lemon Plant capable of growing in various environments, which produce good yields and withstand disease and pests the citrus fruits were hybridized , which resulted in the various kinds of varieties of lemons. There were some varieties that weren't good or delicious to eat however many were and were grown across the globe according to their traits and adaptions. One of these examples is the variety of green lemons which are cultivated .

What is the process by which varieties of lemons come about?
To create new lemons that could withstand different temperatures and can adapt to various locations the hybrids and grafts from lemon trees were developed to create new varieties. The factors considered when choosing the best variety are resistance to cold, and desire size of the fruit quantity of juice, and the quantity of seeds and thorns, and oil inside the shell. There were many varieties that were accepted, and their cultivation was spread across the globe.

Lemon varieties
Eureka is derived originated from an Italian lemon. The fruit is yellow in its skin and a pulp that is similar color, in addition to being very juicy and acidic. The fruit is produced throughout the year, but particularly in the spring and summer. It is susceptible to insect bites and cold. They are found in Israel.
Persian: Known as a lemon without seeds, this Persian lemon is very acidic and the size of it is greater than that of the Mexican lemon. It is cultivated primarily in Mexico.
Armstrong Seedless Fruit, like Eureka.
Avon Avon produces a wide variety of excellent fruits that can be frozen.
Bearss The peel is very high in oils. It is extremely susceptible to illness. Produces a lot of suckers, which reduce production. It is cultivated primarily in Brazil.
Berna (or Vernia: ripens in the winter months. The fruit remains on the tree through summer. It is a prolific tree. It is a little seeded. It's similar to Lisbon.
Femminello Ovale: an old Italian variety. It is a sweet pulp with lots of acid and juice, with a very high quality. It has a few seeds and is fruitful all through the season. It is a thorn-free tree that is ideal to freeze and for transporting. It is extensively grown in Italy.
Genoa He is Italian and comes from Genoa. It is very similar to Eureka. It is a tree, which is resistant to cold. They are cultivated primarily across India, Chile and Argentina.
Harvey Its origin is not known. It's very adaptable to cold temperatures and its fruit is like the Eureka.
Interdonato Sicilian trees, extremely large and free of thorns. The fruit is slightly bitter taste, and only a little seeds. It is produced in Italy.
Lisbon It originates from Portugal The fruits are very alike to Eureka. It is harvested between the months of February and May. It is a huge tall, thorny plant that withstands temperatures and cold very well. It is widely cultivated in California.
Meyer Meyer The theory is that it is an amalgamation of tangerine and lemon. It was first discovered in China. The skin of the animal is pale orange. The pulp is yellow-orange. Its flavor is acidic. It has fruit all the time, and particularly from December through April. It is small and slender, but it is able to withstand the cold. It is widely cultivated throughout Australia in addition to New Zealand.
Moscatello The Moscatello has been believed to be mix of citrus and lemon. The fruit is small and juicy, as well as extremely acid. It is fruitful all the time, particularly during the winter and spring months. The tree is slow growing and does not have thorns or numerous leaves. It is extensively established in Italy.
Nepali: it is also known as Assam The fruit is similar in appearance to citron. The pulp is green and yellow. It is grown in India. It is a fruit that grows throughout the year.
Perinne It is combination of the Creol regular Lemon Plant lemon and Genoa. The peel is pale yellow and very succulent, Creole lemon flavor, but with an acidity that's comparable to Genoa. It has a similar flavor to that of the French lemon. It is a fruit-producing plant throughout the year. It is extremely sensitive to cold. It is not being cultivated at all.
Ponderosa: yellow-orange fruit. Oil glands that are large. Small, but with thorns. It produces fruit throughout the year, and is planted across California in California and Florida. It is very well-cultivated in pots.
Rosenberg Its fruit looks like Lisbon. It is found in California.
Rough lemon, also known as regular Lemon Plant (or French): a combination of citron and lemon. It was first discovered in North India. The tree is huge and has thorns.
Creole also known as Mexican: the lemon is a green fruit and is also known as lime. It is cultivated especially in Mexico.