Assertion: gametophyte | /r/HasProperty | known to date
Facets:
value: from the rhynie chert
type: LOCATION
Source sentences:
text: All of the gametophytes known to date from the Rhynie chert are morphologically quite similar to one another, each consisting of an elongated stalk bearing a flattened or saucer-shaped head that contains antheridia or archegonia (FIG. 8.55 ).