Assertion: fern's spore | /r/HasProperty | produced
Facets:
value: either singly (monads)
type: OTHER
value: from summer
type: TEMPORAL
Source sentences:
text: Spores are produced from summer to fall.
text: Their spores are produced and stored in a sporangium, which in many advanced species is protected by an indusium.
text: These spores, known as cryptospores, were produced either singly (monads), in pairs (dyads) or groups of four (tetrads), and their microstructure resembles that of modern liverwort spores, suggesting they share an equivalent grade of organisation.