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Abstract
Four bromeliad species in the genus Neoregelia were studied by scanning electron microscopy (SEM) for morphological characteristics and density of trichomes that may influence absorptive capacities. Neoregelia trichomes were classically peltate, generally elliptic, exhibiting a web-like cap characteristic of the Bromelioideae. Minor variations were evident between species in morphology, density, and distribution. Copper from copper sulfate applied to leaf surfaces was absorbed and translocated as determined by atomic absorption spectrometry, but uptake was not related to trichome density as determined by SEM nondispersice technique.