Mutated zygomite

Zygomites, also called Mutated Zygomites, are monsters that require level 57 Slayer to kill. They resemble giant mushrooms, and are only found in Zanaris, near the Cosmic altar (Zygomites level 86), or near the furnace (level 74). To kill one, you will first need to Pick Fungi, whereupon it will turn into a Zygomite, and then reduce it to 1 or 2 hitpoints, where you can then use fungicide spray on it, which is available from any slayer master. The fungicide spray must be reloaded every ten kills, and the reloads can be bought from the slayer master at the same time. You cannot sell the spray or reloads back to the slayer master afterwards, so only buy what you need.

Strengths and weaknesses
Players must use fungicide on the zygomites when they reach 1 or 2 hitpoints in order to kill it. Zygomites use magic-based attacks and hit very hard for their combat level, but wearing dragonhide armour while fighting them seems to negate the damage somewhat.

Drops
100% drops Ashes

Runes

 * 2 Nature runes
 * 15 Earth runes

Seeds

 * 4 Strawberry seeds (common)
 * 4 Potato seeds
 * 1 Toadflax seed
 * 1 Mushroom spore
 * 1 Limpwurt seed
 * 1 Whiteberry seed
 * 1 Jangerberry seed
 * 1 Snapdragon seed

Weapons and Armour

 * Steel axe
 * Steel 2h sword
 * Mithril full helm
 * Rune Full Helmet
 * 5 Rune Javelins (rare)
 * Dragon spear
 * Shield left half

Gems

 * Uncut Sapphire
 * Uncut Emerald
 * Uncut Ruby
 * Uncut Diamond

Other

 * 44, 64, 102, 220, 343, or 400 Coins
 * 1 - 3 supercompost (noted)
 * 3 Mort myre fungi
 * Fungicide (common)
 * Herbs
 * Clay
 * Half of a key (rare)

Trivia

 * The name Zygomite is probably based on the class of fungus Zygomycota, though these fungi do not produce mushrooms.
 * If you try and attack something else while you are still in combat, it will read "There's a rather large mushroom monster trying to attack you at the moment. Maybe you should deal with it first."