Thermalily

The Thermalily is a generating flower added by Botania. It generates Mana by consuming Lava. It is primarily intended to be used as an 'emergency' Mana source, rather than for a continuous supply.

Usage
The Thermalily consumes Lava source blocks to generate very large amounts of Mana. It searches the same way as a Hydroangeas, all 4 directions and diagonals at the same altitude. After consuming a block of Lava, a Thermalily will produce 20 Mana per tick for 900 ticks, while going on cooldown for 6000 ticks (5 minutes). If a new block of Lava is found and consumed in this time, this 5 minute cooldown is reset. A Thermalily can store 900 Mana internally, and can be bound to a Mana Spreader within 6 blocks of itself to transfer its Mana.

Prior to Botania R1.8 build 238, the Thermalily had lower Mana output and a 7 minute cooldown, but its cooldown was not reset if more Lava was consumed during the time.