Ponderosa lemon
The ponderosa lemon originated in roughly 1887, and is believed to come from a chance seedling grown in Hagerstown, Maryland. It was later named and introduced to the nursery trade in 1900. Though often referred to as a cross between the lemon and citron, a recent genomic analysis showed it to solely contain pomelo ("Citrus maxima") and citron ("Citrus medica") DNA, perhaps being an F2 hybrid. Thus they cannot derive from true lemons, which have a mandarin orange component.
Saint Clement's (cocktail)
The Saint Clement's is a non-alcoholic cocktail. Though the ingredients may vary, it consists of orange juice mixed with bitter lemon, usually in equal proportions; the name of the drink refers to the English nursery rhyme Oranges and Lemons. The drink is therefore named (indirectly) after either St Clement Eastcheap or St Clement Danes, both churches in London. The traditional recipe calls for equal parts orange juice and lemon juice served over ice in a highball glass. There are many variations, in which the lemon juice is replaced with a sweeter drink (like lemonade), or even a carbonated citrus-flavored soft drink (like Sprite, 7-Up, or Fanta Lemon).