Cramer's 'Mad Money Lightning Round': Riding the Rails

To see the full "Mad Money" Recap, please click here.

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Here's what Jim Cramer had to say about some of the stocks that callers offered up during the "Mad Money Lightning Round" Wednesday evening:

Aruba Networks (ARUN Quote): "Voice video data. A tough call for me. ... Going to send you either to Corning(GLW Quote) ... or how 'bout my favorite spec play, Level 3(LVLT Quote)? It's starting to move up."

Whole Foods(WFMI Quote): "I like the fact that they were going to merge with Wild Oats(OATS Quote) ... but the FTC may be looking to put that deal on hold. ... I can't get behind that deal unless the government does."

CSX(CSX Quote): "[CEO] Michael Ward ... put together the single-best conference call ... the greatest story [the railroads] ever told ... no competition ... boost in dividends, buyback." Cramer also likes Union Pacific(UNP Quote), which he owns for his Action Alerts PLUS charitable trust.

Best Buy(BBY Quote): "Stuck in a range between 45 [and] 50. A lot of short-sellers are betting against retail ... there will be some who will panic, and we will BuyBuyBuy ... weather's good and the country's stronger than ever."

Medtronic(MDT Quote): "While Medtronic is good, I like St. Jude(STJ Quote): because that could be taken over. .... Sending you back to my all-time favorite, which is Allergan(AGN Quote), which is really on the move."

Under Armour(UA Quote): "The growth is 24%, the multiple is 48%. ... I said the great trade was going to be Crocs(CROX Quote), because Crocs continues to go higher. ... take off one-third of the position." Cramer said Crocs is going to 90.