Glossary of Botanical Terms:
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vesicle: a bladder-like sac or cavity filled with gas or liquid. e.g. of hairs that are inflated and bladder-like; vesicular hairs often collapse and form a silvery layer on the surface of the organ on which they are formed. Fig. 15 D. adj. vesicular.
Fig. 15. Trichome Types. A, simple hairs; b, tubercle-based hairs; C, glandular hairs; D, vesicular hairs; E, moniliform hairs; F, dendritic hairs; G, stellate hairs; H, peltate scales; I, elongate scales; J, barbed bristles; K, plumose hair.
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