Izgalmas citrom, feltehetően ő az:

Assam lemon

"Assam lemon originates from Assam region of India. It is a long cylindrical lemon often used as a lime when it is still green. The skin is smooth and the color ranges from green to yellow. Its length goes from 5 cm to 10 cm. The flesh is pale green and very juicy. The juice is mild acidic, somewhat sweet with a lime flavor."

http://citruspages.free.fr/lemons.html