Setae
This photograph shows the long slender stems, called setae, connected to capsules of the moss Thamnobryum alopecurum.
Source
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"OpenStax College, Bryophytes. October 17, 2013."
http://cnx.org/content/m44638/latest/Figure_25_03_07.jpg
OpenStax CNX
CC BY 3.0.
