Glossary of Botanical Terms:
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cystoliths: mineral concretions, usually of calcium carbonate on a cellulose stalk, chiefly occurring in specialized hairs in some Urticaceae and Cannabaceae and in Acanthaceae; often appearing as tubercle-based hairs. Fig. 15 B.
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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