PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Plant collecting. Male biologist examining a bromeliad plant Pitcairnia geyskesii he has collected for a herbarium. Most bromeliads are epiphytes which do not grow in the soil but support themselves on rocks or tree trunks, obtaining water and nutrients from the air and rain. Photographed on an inselberg, a steep-sided rock rising from a plain, in Guyana.
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