biology
botanical
botany
calyptra
cap
capsule
close up
closeup
copy space
detail
ecology
education
educational
enlarge
enlarged
fragment
gray
grey
immature
macro
magnification
magnify
moss
nature
operculum
organism
peristome
plant
red
science
scientific
seta
sporangium
spore case
spore sac
sporophyte
stalk
unripe
yellow