From Lexicanum

The term Mycetic Spores cover a wide range of spores utilized by Tyranids.

Contents 1 Microscopic 2 Medium 2.1 Spore Mines 3 Large 4 Sources 5 See also

Microscopic

Clouds of microscopic Mycetic Spores are used to blanket a planet during the latter days of a Tyranid planetary assimilation. These spores have a three fold purpose¹:

• Accelerate plant growth. This helps in reclamation of organic materials in the soil.
• Poison plant and animal life, making it useless as a food source. This weakens resistance.
• Breaks down cells to help in digestion by the Hive Fleet.

Medium

Spore Mines

De	Sporenmine

Main Article: Spore Mine
Spores are used as weapons.² They are either ejected by Biovores, Spore Chimneys, or seeded from orbit. These usually fall into three categories: poisonous, acidic, or fragmentation.

Large

A Mycetic spore is the Tyranid equivalent of an Imperial drop-pod.¹ A Mycetic spore is usually used to launch the vanguard attack upon a planet though they have been used as boarding vessels as well.²

A Mycetic spore can contain anything from the basic Ripper to a Carnifex, larger organisms are transported at a later stage of the invasion when the Bio-ships have entered a low orbit and are mopping up any resistance.

Sources

• ¹White Dwarf 254(us) "Tyranid Planetary Assimilation Analysis" by Sherman Bishop
• ²Codex: Tyranids (4th Edition)

See also

• Species of Tyranid