endostome


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Related to endostome: Endosome

endostome

[′en·də‚stōm]
(botany)
The opening in the inner integument of a bitegmic ovule.
References in periodicals archive ?
Peristome well developed; exostome yellowish, lower outside ornamentation dotted (reticulate at high magnification), upper outside ornamentation papillose, border broad; endostome hyaline, basal membrane high, 40-45% of endostome height, segments narrowly perforated, finely papillose, cilia 2-4, long, nodose.