Most other stove ferns, if dormant, will bear a temperature as low as 55° by night and 60° by day from November to February.
In the winter it covers the orifice of this burrow with a layer of silk, and lies dormant underground until the return of spring.
The developing seed thus encloses fungal hyphae, which remain dormant within the seed and in spring develop symbiotically with the growth of the wheat plant, doing no apparent injury until the time of fruiting is reached, when the fungus takes complete possession and fills the new seed with a mass of darkcoloured spores.
They are cut to the last dormant bud in winter.
In Owen's Valley is a fine group of extinct or dormant volcanoes.