Cucumis sativus. 65-70 days to maturity. Open-pollinated.
 
Improved Long Green Cucumber is a classic slicing  cucumber. It was introduced in the 1870's and has been a popular choice ever since due to its vigorous production and versatility. It's crisp and grows an average of 10" per cucumber. They can be used for fresh eating, salads or picked when smaller for pickling. 25+ seeds per pack.