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Definitions for
"Apertures"
Keywords:
colporoidate
,
colpi
,
indistinct
,
erdtman
,
ora
more or less similar to colpi but less clearly defined in outline. Colporoidate (adj.) ( Erdtman, 1952) Describing pollen grains with colpi and indistinct ora.
bio.uu.nl
Keywords:
abalone
,
shells
,
openings
openings found in abalone shells
library.thinkquest.org