Species within a genus

in- = denotes tendency or progression towards; not quite;
flatus, = a blowing, breathing;
inflo, inflatus, = to blow into or upon anything, to inflate; to puff up, inflate; swelled up, swollen, puffed up;
-atus, = indicates possession or likeness.
(bladdery, i.e.thin, membranous and swollen)
(ld, BL)